http://prb.aps.org/ Accepted Papers for Physical Review B en-us Copyright (c) 2009 The American Physical Society 2009-07-02T22:05:03-04:00 assocpub@aps.org rss@aps.org hourly 4 2009-07-02T22:05:03-04:00 rss@aps.org http://prb.aps.org/accepted/L/7c075Yf0Ob015529309e83972c8c49724443af90f We use high resolution angle-resolved photoemission to study the electronic structure of the  pnictides. We observe two electron bands and two hole bands near the X-point, (p,p) of the Brillouin zone, in the paramagnetic state for electron-doped , undoped , and hole-doped . Among these bands, o... M. Yi, D.H Lu., J. G. Analytis, J. H. Chu, S.K Mo., R.H He., R. G. Moore, X. J. Zhou, G. F. Chen, J. L. Luo, N. L. Wang, Z. Hussain, D. J. Singh, I. R. Fisher and Z. X. Shen 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Superfluidity and superconductivity Superfluidity and superconductivity http://prb.aps.org/accepted/B/83072O59Q241c11c92232d09540702acbd841f20b Self-diffusion in ion beam sputtered nanocrystalline Fe is studied between 310 and 510 C degrees, using neutron reflectometry on [natFe (7 nm)/57Fe(3 nm)]15 isotope multilayers. Neutron reflectometry has the advantage over other methods of diffusivity determination, that diffusion lengths in the ord... Sujoy Chakravarty, Harald Schmidt, Ursula Tietze, Dieter Lott, N. P. Lalla and Ajay Gupta 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Structure, structural phase transitions, mechanical properties, defects, etc. Structure, structural phase transitions, mechanical properties, defects, etc. http://prb.aps.org/accepted/B/ff070O01Qad1a81cc43e710943bf4fa2c960a060f Spin-state transitions, observed in many transition metal compounds containing Co3+ and Fe2+, may occur with the change of temperature, pressure, but also with doping, in which case the competition of single-site effects and kinetic energy of doped carriers can favor a change in the spin state. We c... A. O. Sboychakov, K. I. Kugel, A. L. Rakhmanov and D. I. Khomskii 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Magnetism Magnetism http://prb.aps.org/accepted/L/e5078Y08Ofb1b917d91b6c67642f7884fad23e417 We apply the time-dependent Ginzburg-Landau approach to describe the nucleation of vortex-antivortex pairs in a hybrid system, formed by a thin superconducting film with a single in-plane magnetic dipole on top of it, and to simulate the vortex dynamics in the presence of a direct transport current.... V. N. Gladilin, J. Tempere, J. T. Devreese, W. Gillijns and V. V. Moshchalkov 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Superfluidity and superconductivity Superfluidity and superconductivity http://prb.aps.org/accepted/L/99075YeaO881872f43c29a346e3d1e131cb55a901 We introduce a novel concept of "coherent" and ïncoherent" metmaterials, which show distinctly different resonant behavior upon disordering of their initially regular lattices. In the case of a coherent metamaterial a regular ensemble of meta-molecules exhibits a collective narrow-band response... N. Papasimakis, V. A. Fedotov, Y.H Fu., D. P. Tsai and N. I. Zheludev 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://prb.aps.org/accepted/B/a007aO23P141f105b9dc7039673935c6542587a0c First-principles density-functional theory calculations reveal significantly different behavior between group IIIA and IIIB delafossites CuMO2. The group IIIA delafossites have indirect bandgaps with large differences between the direct and indirect bandgaps. However, this difference is small for th... Muhammad N. Huda, Yanfa Yan, Aron Walsh, SuHuai Wei and Mowafak M. Al Jassim 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Semiconductors I: bulk Semiconductors I: bulk http://prb.aps.org/accepted/L/cd07aY69Of71c61f66e375f0abc9558328f2c1f96 We analyze the full counting statistics (FCS) of a single-site quantum dot coupled to a local Holstein phonon for arbitrary transmission and weak electron-phonon coupling. We identify explicitly the contributions due to quasielastic and inelastic transport processes in the cumulant generating functi... T. L. Schmidt and A. Komnik 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://prb.aps.org/accepted/B/68070OeeJ35E1d11f0d97671f20ba67a3ecd89313 We demonstrate the coupling of a single InAs/InP quantum dash, emitting around 1.55 \mu m, to a slow-light mode in a 2D photonic crystal on Bragg reflector. These surface addressable 2.5D photonic crystal band-edge modes present the advantages of a vertical emission and the mode area and localizatio... N. Chauvin, P. Nedel, C. Seassal, B. Ben Bakir, X. Letartre, M. Gendry, A. Fiore and P. Viktorovitch 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://prb.aps.org/accepted/L/8d07bY65Ke11d415c281901859d135f654da3c4bd We study the tunneling current between edge states of quantum Hall liquids across a single long contact region, and predict a resonance at a bias voltage set by the scale of the edge velocity. For typical devices and edge velocities associated with charged modes, this resonance occurs outside the ph... B. J. Overbosch and Claudio Chamon 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://prb.aps.org/accepted/B/6907cO67Pd6E4316a14b44d6920a9c4fd337feb6c An interplay between the increase in the number of carriers and the decrease in the scattering time is expected to result in a saturation of the in-plane resistivity, rab, in graphite above room temperature. Contrary to this expectation, we observe a pronounced increase in rab in the interval betwee... D. B. Gutman, S. Tongay, H. K. Pal, D. L. Maslov and A. F. Hebard 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Surface physics, low-dimensional systems, and related topics Surface physics, low-dimensional systems, and related topics http://prb.aps.org/accepted/B/3d071Oe3R901501a91bd4e862099934b557177e0e Current auto- and cross-correlations are studied in a system of two capacitively coupled quantum dots. We are interested in a role of Coulomb interaction in dynamical correlations, which occur outside the Coulomb blockade region (for high bias). After decomposition of the current correlation functio... Grzegorz Michalek and Bogdan R. Bulka 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://prb.aps.org/accepted/B/45077OceR341801eb42a1d7492e314ed4b4c5ad45 Recent experiments on quantum turbulence in superfluid helium made use of small tracer particles to track the motion of quantized vortices, determine velocity statistics and visualize vortex reconnections. A problem with this visualization technique is that it may change the turbulent flow which it ... Carlo F. Barenghi and Yuri A. Sergeev 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Superfluidity and superconductivity Superfluidity and superconductivity http://prb.aps.org/accepted/B/01070O25Mb21fc0389212ad94d82f2f6b3f41769b Using a recently developed broadband microwave measurement technique, we have studied the hysteretic appearance and disappearance with in-plane magnetic field of the uniform ferromagnetic resonance mode of a patterned permalloy disc array. The observed features are consistent with our micromagnetic ... C. C. Tsai, J. Choi, Sunglae Cho, S. J. Lee, B. K. Sarma, C. Thompson, O. Chernyashevskyy, I. Nevirkovets, V. Metlushko, K. Rivkin and J. B. Ketterson 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Magnetism Magnetism http://prb.aps.org/accepted/B/45075O33N1c1b01c03b61e789804344b6401062dd The extent of the vortex liquid state in underdoped single crystals of the oxypnictide superconductors NdFeAs(O,F) and (Ba,K)Fe2As2 is investigated using specific heat (Cp) and Hall probe magnetization experiments. In both materials, the vortex liquid lies entirely in the regime where the three-dime... J. Kacmarcik, C. Marcenat, T. Klein, Z. Pribulova, C. J. van der Beek, M. Konczykowski, S. L. Budko, M. Tillman, N. Ni and P. C. Canfield 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Superfluidity and superconductivity Superfluidity and superconductivity http://prb.aps.org/accepted/B/6b075Od4QfeX471f20f71ab7307aaed1df26b0c30 We argue from both technical and physical points of view that the main result shown in the Comment above as well as the authors' interpretations of the result are not sufficient to draw the conclusion that the scaling law at the mobility edge takes the form T\infty1/L2 . On the other hand, we believ... S. K. Cheung and Z. Q. Zhang 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://prb.aps.org/accepted/B/ee077Oa3P8817e17a0df1cd4d42056b060e980348 Real and momentum space spectrally resolved images of microcavity polariton emission in the regime of condensation are investigated under non resonant excitation using a laser source with reduced intensity fluctuations on the timescale of the exciton lifetime. We observe that the polariton emission ... D. N. Krizhanovskii, K. G. Lagoudakis, M. Wouters, B. Pietka, R. A. Bradley, K. Guda, D. M. Whittaker, M. S. Skolnick, B. Deveaud Pledran, M. Richard, R. Andre and Le Si Le Si Dang 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://prb.aps.org/accepted/L/38078Y5dRa41f312c94b99a5dc16d5f0b43529266 Theory of the electron spin relaxation in graphene on the SiO2 substrate is developed. Charged impurities and polar optical surface phonons in the substrate induce an effective random Bychkov-Rashba-like spin-orbit coupling field which leads to spin relaxation by the D'yakonov-Perel' mechanism. Anal... Christian Ertler, Sergej Konschuh, Martin Gmitra and Jaroslav Fabian 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Surface physics, low-dimensional systems, and related topics Surface physics, low-dimensional systems, and related topics http://prb.aps.org/accepted/L/68077Y8cNbb1752c5223502769d0fa48a235307ad Sample-to-sample fluctuations of the time-dependent conductance of a system with static disorder have been studied by means of diagrammatic theory and microwave pulsed transmission measurements. The fluctuations of time-dependent conductance are not universal, i.e., depend on sample parameters, in c... N. Cherroret, A. Pena, A. A. Chabanov and S. E. Skipetrov 2009-07-02T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://prb.aps.org/accepted/A/3d07dN70S911800cc4443d6094579219338091e67 The electronic energy levels of one-dimensional aperiodic systems driven by a homogeneous electric field are studied by means of a phase space description based on the Wigner distribution function. The formulation provides physical insight into the quantum nature of the electronic states for the ape... B. J. Spisak and M. Woloszyn 2009-07-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://prb.aps.org/accepted/L/16078Y65L3c1f71933907ad351c6a22a61b517935 We introduce a two-body quantum Hamiltonian model of spin-1/2 on a 2D spatial lattice with exact topological degeneracy in all coupling regimes. There exists a gapped phase in which the low-energy sector reproduces an effective color code model. High energy excitations fall into three families of an... H. Bombin, M. Kargarian and M. A. Martin Delgado 2009-07-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://prb.aps.org/accepted/B/0a071O02O151901a02b39a7200b165ca6da1a8795 We report a molecular dynamics study of anisotropic dynamics and dielectric properties of water confined inside a single-walled carbon nanotube (SWNT) at room temperature. The model includes dynamics of an SWNT described by a realistic potential function. A comparison with simulations assuming a rig... Yuan Lin, Junichiro Shiomi, Shigeo Maruyama and Gustav Amberg 2009-07-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Surface physics, low-dimensional systems, and related topics Surface physics, low-dimensional systems, and related topics http://prb.aps.org/accepted/B/40070OeaQ90Wa11b509980c9dfa600539322c8753 The first two peaks of the optical extinction spectrum of PbSe nanocrystals in solution have been assigned in the literature to the 1Sh1Se and 1Ph1Pe transitions. In the present work we assign the transitions causing extinction in the energy region between these two lowest energy peaks. Our femtosec... Juleon M. Schins, M.Tuan Trinh, Arjan J. Houtepen and Laurens D. A. Siebbeles 2009-07-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://prb.aps.org/accepted/B/ec07cO80Q4e1c01450775de6f684c5ba87e39a42b We study in detail out-of-plane losses of photonic crystal membranes located at optical distance above a substrate by using approximate and rigorous methods. We reveal a resonance mechanism in the air gap, separating membrane and substrate, being responsible for a nonmonotonic loss dependence on wav... Rumen Iliew, Christoph Etrich, Thomas Pertsch and Falk Lederer 2009-07-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://prb.aps.org/accepted/L/f8071Y1fJ6b1a51d234d75f2925356fc48988c68a In spin-driven ferroelectrics, often referred to as magnetoelectric (ME) multiferroics, a domain wall separates two magnetic as well as ferroelectric domains. Therefore, it is expected that the control of such an ME domain wall could result in a large ME effect. Here, we show that the direction of a... N. Abe, K. Taniguchi, S. Ohtani, H. Umetsu and T. Arima 2009-07-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Magnetism Magnetism http://prb.aps.org/accepted/L/6e07bY27D8f1091db8529e340a97efac3884ddc1c We have performed x-ray linear and circular magnetic dichroism experiments at the Mn L2,3-edge of the La0.7Sr0.3MnO3 ultra thin films. Our measurements show that the antiferromagnetic (AF) insulating phase is stabilized by the interfacial rearrangement of the Mn 3d orbitals, despite the relevant mag... C. Aruta, G. Ghiringhelli, V. Bisogni, L. Braicovich, N. B. Brookes, A. Tebano and G. Balestrino 2009-07-01T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited article Physical Review B Magnetism Magnetism