http://prb.aps.org/ Recently published articles in Phys. Rev. B in the Table of Content section "Semiconductors II: surfaces, interfaces, microstructures, and related topics" en-us Copyright (c) 2008 The American Physical Society 2008-05-07T08:04:36-04:00 assocpub@aps.org rss@aps.org hourly 4 2008-05-07T08:04:36-04:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevB.77.205304 Author(s): Deepthi Gopireddy and Christos G. Takoudis<br/>We present the quantitative physicochemical modeling of the thermal annealing of high dielectric constant (k) thin films on silicon in oxygen and/or inert ambient. In particular, we study the kinetics of the SiO_{2} interfacial layer growth at the high- k material structure/Si interface. Upon anneal...<br/>[Phys. Rev. B 77, 205304] Published Mon May 05, 2008 Deepthi Gopireddy and Christos G. Takoudis 2008-05-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.205304 Phys. Rev. B 77, 205304 text/html article Physical Review B 77 20 2008-05-05T00:00:00-04:00 205304 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.195305 Author(s): S. Portolan, O. Di Stefano, S. Savasta, F. Rossi, and R. Girlanda<br/>We present a systematic theory of Coulomb-induced correlation effects in the nonlinear optical processes within the strong-coupling regime. In this paper, we shall set a dynamics controlled truncation scheme microscopic treatment of nonlinear parametric processes in semiconductor microcavities inclu...<br/>[Phys. Rev. B 77, 195305] Published Mon May 05, 2008 S. Portolan, O. Di Stefano, S. Savasta, F. Rossi, and R. Girlanda 2008-05-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.195305 Phys. Rev. B 77, 195305 text/html article Physical Review B 77 19 2008-05-05T00:00:00-04:00 195305 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.193302 Author(s): C. P. Moca, D. C. Marinescu, and S. Filip<br/>Dopant ion concentrations in the sides of a symmetric quantum well are known to create a random Rashba-type spin-orbit coupling. Here, we demonstrate that, as a consequence, a finite size spin Hall effect is also present. Our numerical algorithm estimates the result of the Kubo formula for the spin ...<br/>[Phys. Rev. B 77, 193302] Published Mon May 05, 2008 C. P. Moca, D. C. Marinescu, and S. Filip 2008-05-05T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.193302 Phys. Rev. B 77, 193302 text/html article Physical Review B 77 19 2008-05-05T00:00:00-04:00 193302 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.205303 Author(s): A. Bruno-Alfonso and A. Latgé<br/>The electronic states of quantum rings with centerlines of arbitrary shape and non-uniform width in a threading magnetic field are calculated. The solutions of the Schrödinger equation with Dirichlet boundary conditions are obtained by a variational separation of variables in curvilinear coordinate...<br/>[Phys. Rev. B 77, 205303] Published Fri May 02, 2008 A. Bruno-Alfonso and A. Latgé 2008-05-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.205303 Phys. Rev. B 77, 205303 text/html article Physical Review B 77 20 2008-05-02T00:00:00-04:00 205303 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.195304 Author(s): Sanjeev Singh, Tomer Drori, and Z. Valy Vardeny<br/>We used the technique of ultrafast transient polarized photomodulation in the visible/near-infrared range and polarization memory decay (PMD) spectroscopy to study the primary photoexcitations in films and solutions of two poly(phenylene-vinylene) (PPV) derivatives, namely, 2-methoxy-5-( 2^{′} -et...<br/>[Phys. Rev. B 77, 195304] Published Fri May 02, 2008 Sanjeev Singh, Tomer Drori, and Z. Valy Vardeny 2008-05-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.195304 Phys. Rev. B 77, 195304 text/html article Physical Review B 77 19 2008-05-02T00:00:00-04:00 195304 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.195303 Author(s): F. Réveret, P. Disseix, J. Leymarie, A. Vasson, F. Semond, M. Leroux, and J. Massies<br/>The optical properties of bulk λ∕2 GaN microcavities working in the strong light-matter coupling regime are investigated by using angle-dependent reflectivity and photoluminescence at 5 and 300K . The structures have an Al_{0.2} Ga_{0.8} N∕AlN distributed Bragg reflector as the bottom mirror an...<br/>[Phys. Rev. B 77, 195303] Published Fri May 02, 2008 F. Réveret, P. Disseix, J. Leymarie, A. Vasson, F. Semond, M. Leroux, and J. Massies 2008-05-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.195303 Phys. Rev. B 77, 195303 text/html article Physical Review B 77 19 2008-05-02T00:00:00-04:00 195303 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.195302 Author(s): V. Moldoveanu and B. Tanatar<br/>The effect of electron-electron interactions on coherent transport in quantum dot systems is theoretically investigated by adapting the well-known random-phase approximation (RPA) to the nonequilibrium Green–Keldysh formalism for open mesoscopic systems. The contour-ordered polarization operator i...<br/>[Phys. Rev. B 77, 195302] Published Fri May 02, 2008 V. Moldoveanu and B. Tanatar 2008-05-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.195302 Phys. Rev. B 77, 195302 text/html article Physical Review B 77 19 2008-05-02T00:00:00-04:00 195302 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.205302 Author(s): Gursoy B. Akguc and Jiangbin Gong<br/>An efficient computational approach to spin-dependent electron transport in two-dimensional waveguides with rather arbitrary geometry is presented, with necessary details about how to include the spin-orbit Rashba coupling and the so-called evanescent modes. The spin conductance properties are then ...<br/>[Phys. Rev. B 77, 205302] Published Thu May 01, 2008 Gursoy B. Akguc and Jiangbin Gong 2008-05-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.205302 Phys. Rev. B 77, 205302 text/html article Physical Review B 77 20 2008-05-01T00:00:00-04:00 205302 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.205301 Author(s): Keisuke Sagisaka and Daisuke Fujita<br/>Scanning tunneling microscopy in field emission mode (with atomic resolution) reveals an unfamiliar topographic image of a clean Si(111) surface, so-called mosaic patterns, within a narrow range of high sample bias, in contrast to the conventional (7×7) superstructure observed at low sample bias. T...<br/>[Phys. Rev. B 77, 205301] Published Thu May 01, 2008 Keisuke Sagisaka and Daisuke Fujita 2008-05-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.205301 Phys. Rev. B 77, 205301 text/html article Physical Review B 77 20 2008-05-01T00:00:00-04:00 205301 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.195301 Author(s): Paolo Michetti and Giuseppe C. La Rocca<br/>We have developed a model in order to account for the photoexcitation dynamics of J-aggregate films and strongly coupled J-aggregate microcavities. The J aggregates are described as a disordered Frenkel exciton system in which relaxation occurs due to the presence of a thermal bath of molecular vibr...<br/>[Phys. Rev. B 77, 195301] Published Thu May 01, 2008 Paolo Michetti and Giuseppe C. La Rocca 2008-05-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.195301 Phys. Rev. B 77, 195301 text/html article Physical Review B 77 19 2008-05-01T00:00:00-04:00 195301 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.193301 Author(s): B. A. Collins, Y. S. Chu, L. He, Y. Zhong, and F. Tsui<br/>Systematic investigation of structural, chemical, and magnetic properties of Co and Mn-doped Ge (001) as a function of doping concentration reveals that codoping with Co can dramatically reduce phase separation and diffusion of Mn within the Ge lattice while it magnetically complements Mn. The measu...<br/>[Phys. Rev. B 77, 193301] Published Thu May 01, 2008 B. A. Collins, Y. S. Chu, L. He, Y. Zhong, and F. Tsui 2008-05-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.193301 Phys. Rev. B 77, 193301 text/html article Physical Review B 77 19 2008-05-01T00:00:00-04:00 193301 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.165341 Author(s): M. M. Glazov and L. E. Golub<br/>The transport properties of exciton-polaritons are studied with allowance for their polarization. Both classical multiple scattering effects and quantum effects such as weak localization are taken into account in the framework of a generalized kinetic equation. The longitudinal-transverse (TE-TM) sp...<br/>[Phys. Rev. B 77, 165341] Published Wed Apr 30, 2008 M. M. Glazov and L. E. Golub 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.165341 Phys. Rev. B 77, 165341 text/html article Physical Review B 77 16 2008-04-30T00:00:00-04:00 165341 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.165340 Author(s): D. V. Melnikov, T. Fujisawa, D. G. Austing, S. Tarucha, and J.-P. Leburton<br/>Inherent asymmetry in the tunneling barriers of few-electron quantum dots induces intrinsically different tunneling currents for forward and reverse source-drain biases in the nonlinear transport regime. We demonstrate that in addition to spin selection rules, overlap matrix elements between many-bo...<br/>[Phys. Rev. B 77, 165340] Published Wed Apr 30, 2008 D. V. Melnikov, T. Fujisawa, D. G. Austing, S. Tarucha, and J.-P. Leburton 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.165340 Phys. Rev. B 77, 165340 text/html article Physical Review B 77 16 2008-04-30T00:00:00-04:00 165340 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.161306 Author(s): Na Sai, Murilo L. Tiago, James R. Chelikowsky, and Fernando A. Reboredo<br/>We report the first-principles GW -Bethe–Salpeter equation and quantum Monte Carlo calculations of the optical and electronic properties of molecular and crystalline rubrene (C_{42} H_{28} ) . Many-body effects dominate the optical spectrum and quasiparticle gap of molecular crystals. We interpret...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 77, 161306] Published Wed Apr 30, 2008 Na Sai, Murilo L. Tiago, James R. Chelikowsky, and Fernando A. Reboredo 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.161306 Phys. Rev. B 77, 161306 text/html article Physical Review B 77 16 2008-04-30T00:00:00-04:00 161306 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.153309 Author(s): A. Reklaitis<br/>Terahertz emission from the electron-hole plasma excited by the femtosecond laser pulse in semiconductor structures is analyzed. It is shown that plasma excitations in the homogeneous structures are incoherent. The incoherence of the excitations essentially reduces the intensity of terahertz radiati...<br/>[Phys. Rev. B 77, 153309] Published Wed Apr 30, 2008 A. Reklaitis 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.153309 Phys. Rev. B 77, 153309 text/html article Physical Review B 77 15 2008-04-30T00:00:00-04:00 153309 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.153308 Author(s): A. Schramm, S. Schulz, Ch. Heyn, and W. Hansen<br/>Electron emission from charged self-assembled InAs quantum dots is studied by means of deep level transient spectroscopy in strong magnetic fields applied parallel to the quantum-dot layer. Since a magnetic field oriented parallel to the quantum-dot layer strongly suppresses electron tunneling our e...<br/>[Phys. Rev. B 77, 153308] Published Wed Apr 30, 2008 A. Schramm, S. Schulz, Ch. Heyn, and W. Hansen 2008-04-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.153308 Phys. Rev. B 77, 153308 text/html article Physical Review B 77 15 2008-04-30T00:00:00-04:00 153308 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.165339 Author(s): Ioan Bâldea and Lorenz S. Cederbaum<br/>We report results of a systematic analysis of optical absorption in finite metallic quantum-dot nanorings containing a variable number of electrons described by the extended Hubbard model. Despite the very strong electron correlations, the number of significant spectral lines is astonishingly small,...<br/>[Phys. Rev. B 77, 165339] Published Tue Apr 29, 2008 Ioan Bâldea and Lorenz S. Cederbaum 2008-04-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.165339 Phys. Rev. B 77, 165339 text/html article Physical Review B 77 16 2008-04-29T00:00:00-04:00 165339 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.165338 Author(s): J. Skiba-Szymanska, E. A. Chekhovich, A. E. Nikolaenko, A. I. Tartakovskii, M. N. Makhonin, I. Drouzas, M. S. Skolnick, and A. B. Krysa<br/>Sizable nuclear spin polarization is pumped in individual electron-charged InP∕GaInP dots in a wide range of external magnetic fields B_{Z} =0–5T by circularly polarized optical excitation. We observe nuclear polarization of up to ≈40% at B_{Z} =1.5T corresponding to an Overhauser field of ≈...<br/>[Phys. Rev. B 77, 165338] Published Tue Apr 29, 2008 J. Skiba-Szymanska, E. A. Chekhovich, A. E. Nikolaenko, A. I. Tartakovskii, M. N. Makhonin, I. Drouzas, M. S. Skolnick, and A. B. Krysa 2008-04-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.165338 Phys. Rev. B 77, 165338 text/html article Physical Review B 77 16 2008-04-29T00:00:00-04:00 165338 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.165337 Author(s): Benjamin B. Schmidt, Matthias H. Hettler, and Gerd Schön<br/>We study the electronic transport through short DNA chains with various sequences of base pairs between voltage-biased leads. The strong coupling of the charge carriers to local vibrations of the base pairs leads to the formation of polarons, and in the relevant temperature range the transport is ac...<br/>[Phys. Rev. B 77, 165337] Published Tue Apr 29, 2008 Benjamin B. Schmidt, Matthias H. Hettler, and Gerd Schön 2008-04-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.165337 Phys. Rev. B 77, 165337 text/html article Physical Review B 77 16 2008-04-29T00:00:00-04:00 165337 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.165336 Author(s): Wei Zhao, Eric Salomon, Qing Zhang, Stephen Barlow, Seth R. Marder, and Antoine Kahn<br/>This work focuses on organic-organic heterojunctions (OOHs) formed between two small-molecule, low band-gap, semiconductors, tris{2,5-bis(3,5-bis-trifluoromethyl-phenyl)-thieno} [3,4-b, h,n]-1,4,5, 8,9,12 -hexaaza-triphenylene (THAP), and copper phthalocyanine (CuPc). The organic layers are deposite...<br/>[Phys. Rev. B 77, 165336] Published Tue Apr 29, 2008 Wei Zhao, Eric Salomon, Qing Zhang, Stephen Barlow, Seth R. Marder, and Antoine Kahn 2008-04-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.165336 Phys. Rev. B 77, 165336 text/html article Physical Review B 77 16 2008-04-29T00:00:00-04:00 165336 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.165335 Author(s): A. M. Gilbertson, M. Fearn, J. H. Jefferson, B. N. Murdin, P. D. Buckle, and L. F. Cohen<br/>The spin-orbit (SO) coupling parameters for the lowest conduction subband due to structural inversion asymmetry (SIA) and bulk inversion asymmetry (BIA) are calculated for a range of carrier densities in [001]-grown δ -doped n -type InSb∕In_{1−x} Al_{x} Sb quantum wells using the established ei...<br/>[Phys. Rev. B 77, 165335] Published Mon Apr 28, 2008 A. M. Gilbertson, M. Fearn, J. H. Jefferson, B. N. Murdin, P. D. Buckle, and L. F. Cohen 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.165335 Phys. Rev. B 77, 165335 text/html article Physical Review B 77 16 2008-04-28T00:00:00-04:00 165335 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.165334 Author(s): J. M. S. Orr, A. M. Gilbertson, M. Fearn, O. W. Croad, C. J. Storey, L. Buckle, M. T. Emeny, P. D. Buckle, and T. Ashley<br/>The mobility and carrier concentration of a number of InSb-based modulation-doped quantum well heterostructures are examined over a range of temperatures between 4.5 and 300 K. Wide well (30 nm) and narrow well (15 nm) structures are measured. The temperature dependent mobilities are considered with...<br/>[Phys. Rev. B 77, 165334] Published Mon Apr 28, 2008 J. M. S. Orr, A. M. Gilbertson, M. Fearn, O. W. Croad, C. J. Storey, L. Buckle, M. T. Emeny, P. D. Buckle, and T. Ashley 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.165334 Phys. Rev. B 77, 165334 text/html article Physical Review B 77 16 2008-04-28T00:00:00-04:00 165334 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.161305 Author(s): K. Kowalik, O. Krebs, A. Lemaître, J. A. Gaj, and P. Voisin<br/>We investigate exciton spin memory in individual InAs∕GaAs self-assembled quantum dots via optical alignment and conversion of exciton polarization in a magnetic field. Quasiresonant phonon-assisted excitation is successfully employed to define the initial spin polarization of neutral excitons. Th...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 77, 161305] Published Mon Apr 28, 2008 K. Kowalik, O. Krebs, A. Lemaître, J. A. Gaj, and P. Voisin 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.161305 Phys. Rev. B 77, 161305 text/html article Physical Review B 77 16 2008-04-28T00:00:00-04:00 161305 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.155328 Author(s): M. O. Nestoklon, E. L. Ivchenko, J.-M. Jancu, and P. Voisin<br/>Effect of electric field on spin splitting in SiGe quantum wells (QWs) has been theoretically studied. Microscopic calculations of valley and spin splittings are performed in the efficient sp^{3} d^{5} s^{*} tight-binding model. In accordance with the symmetry considerations, the electric field not ...<br/>[Phys. Rev. B 77, 155328] Published Mon Apr 28, 2008 M. O. Nestoklon, E. L. Ivchenko, J.-M. Jancu, and P. Voisin 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.155328 Phys. Rev. B 77, 155328 text/html article Physical Review B 77 15 2008-04-28T00:00:00-04:00 155328 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.155327 Author(s): S. P. Łepkowski<br/>We investigate the effect of second-order piezoelectricity on the pressure coefficient of the light emission (dE_{E} ∕dP) in (111)-oriented InGaAs∕GaAs quantum wells (QWs). In the framework of continuum theory of elasticity and piezoelectricity, we propose the analytic model of pressure tuning o...<br/>[Phys. Rev. B 77, 155327] Published Mon Apr 28, 2008 S. P. Łepkowski 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.155327 Phys. Rev. B 77, 155327 text/html article Physical Review B 77 15 2008-04-28T00:00:00-04:00 155327 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.155326 Author(s): C. Colombo, D. Spirkoska, M. Frimmer, G. Abstreiter, and A. Fontcuberta i Morral<br/>The mechanisms of Ga-assisted GaAs nanowires grown by molecular beam epitaxy are addressed. The axial and radial growth rates as a function of the Ga rate and As pressure indicate that on the opposite of what is observed in thin film epitaxy, the growth rate of the nanowires is arsenic limited. As a...<br/>[Phys. Rev. B 77, 155326] Published Mon Apr 28, 2008 C. Colombo, D. Spirkoska, M. Frimmer, G. Abstreiter, and A. Fontcuberta i Morral 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.155326 Phys. Rev. B 77, 155326 text/html article Physical Review B 77 15 2008-04-28T00:00:00-04:00 155326 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.153307 Author(s): T. P. Pareek and A. M. Jayannavar<br/>Generation and measurement of nonequilibrium spin current in two probe phase coherent conductors are discussed. It is argued and shown that spin current can be generated in a two-terminal nonmagnetic system by application of electrical voltage. These spin currents can be measured via conductance in ...<br/>[Phys. Rev. B 77, 153307] Published Mon Apr 28, 2008 T. P. Pareek and A. M. Jayannavar 2008-04-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.153307 Phys. Rev. B 77, 153307 text/html article Physical Review B 77 15 2008-04-28T00:00:00-04:00 153307 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.155325 Author(s): Marina Litinskaya<br/>The kinematic interaction between cavity polaritons in a crystalline organic microcavity is examined, and a general analytical expression for the scattering amplitude for two cavity polaritons with zero total wave vector is derived. It is shown that if two incoming polaritons can scatter into excito...<br/>[Phys. Rev. B 77, 155325] Published Fri Apr 25, 2008 Marina Litinskaya 2008-04-25T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.155325 Phys. Rev. B 77, 155325 text/html article Physical Review B 77 15 2008-04-25T00:00:00-04:00 155325 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.155324 Author(s): N. Kumada, K. Iwata, K. Tagashira, Y. Shimoda, K. Muraki, Y. Hirayama, and A. Sawada<br/>We study effects of tilted magnetic fields on energy levels in a double-quantum-well (DQW) system, focusing on the coupling of subbands and Landau levels (LLs). The subband-LL coupling induces anticrossings between LLs directly manifested in the magnetoresistance. The anticrossing gap becomes larger...<br/>[Phys. Rev. B 77, 155324] Published Thu Apr 24, 2008 N. Kumada, K. Iwata, K. Tagashira, Y. Shimoda, K. Muraki, Y. Hirayama, and A. Sawada 2008-04-24T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.155324 Phys. Rev. B 77, 155324 text/html article Physical Review B 77 15 2008-04-24T00:00:00-04:00 155324 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.77.155323 Author(s): D. J. Paul<br/>Recent work using compressively strained-Ge quantum wells grown on Si_{1−y} Ge_{y} virtual substrates has demonstrated efficient modulation on a silicon substrate through the quantum confined Stark effect with performance comparable to many direct band gap III-V materials. The absorption of compre...<br/>[Phys. Rev. B 77, 155323] Published Thu Apr 24, 2008 D. J. Paul 2008-04-24T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.77.155323 Phys. Rev. B 77, 155323 text/html article Physical Review B 77 15 2008-04-24T00:00:00-04:00 155323 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics