http://prl.aps.org/ Graphene articles published in Physical Review Journals en-us Copyright (c) 2009 The American Physical Society 2009-11-07T12:25:33-05:00 assocpub@aps.org rss@aps.org hourly 4 2009-11-07T12:25:33-05:00 rss@aps.org http://link.aps.org/doi/10.1103/PhysRevLett.103.196401 Author(s): Leonardo Spanu, Sandro Sorella, and Giulia Galli<br/>We compute the interlayer bonding properties of graphite using an ab initio many-body theory. We carry out variational and diffusion quantum Monte Carlo calculations and find an equilibrium interlayer binding energy in good agreement with most recent experiments. We also analyze the behavior of th...<br/>[Phys. Rev. Lett. 103, 196401] Published Fri Nov 06, 2009 Leonardo Spanu, Sandro Sorella, and Giulia Galli 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.196401 Phys. Rev. Lett. 103, 196401 text/html article Physical Review Letters 103 19 2009-11-06T00:00:00-05:00 196401 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevB.80.193404 Author(s): Sankaran Lakshmi, Stephan Roche, and Gianaurelio Cuniberti<br/>We report on the possibility for a spin-valve effect driven by edge defect engineering of zigzag graphene nanoribbons. Based on a mean-field spin-unrestricted Hubbard model, electronic band structures and conductance profiles are derived, using a self-consistent scheme to include gate-induced charge...<br/>[Phys. Rev. B 80, 193404] Published Fri Nov 06, 2009 Sankaran Lakshmi, Stephan Roche, and Gianaurelio Cuniberti 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.193404 Phys. Rev. B 80, 193404 text/html article Physical Review B 80 19 2009-11-06T00:00:00-05:00 193404 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.205405 Author(s): E. H. Hwang and S. Das Sarma<br/>We derive the plasmon dispersion in doped double-layer graphene (DLG), made of two parallel graphene monolayers with carrier densities n_{1} and n_{2} , respectively, and an interlayer separation of d . The linear chiral gapless single-particle energy dispersion of graphene leads to DLG plasmon prop...<br/>[Phys. Rev. B 80, 205405] Published Fri Nov 06, 2009 E. H. Hwang and S. Das Sarma 2009-11-06T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.205405 Phys. Rev. B 80, 205405 text/html article Physical Review B 80 20 2009-11-06T00:00:00-05:00 205405 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.193304 Author(s): Shun-Li Yu, Jian-Xin Li, and Li Sheng<br/>We study theoretically the quantum Hall effect (QHE) on the kagome lattice with anisotropy in one of the hopping integrals. We find an interesting quantum phase, in which the QHE exhibits the energy spectrum given by E(n)=±v_{F} sqrt[(n+1/2)ℏBe] ( n is an integer) being different from the known t...<br/>[Phys. Rev. B 80, 193304] Published Thu Nov 05, 2009 Shun-Li Yu, Jian-Xin Li, and Li Sheng 2009-11-05T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.193304 Phys. Rev. B 80, 193304 text/html article Physical Review B 80 19 2009-11-05T00:00:00-05:00 193304 Semiconductors II: surfaces, interfaces, microstructures, and related topics Semiconductors II: surfaces, interfaces, microstructures, and related topics http://link.aps.org/doi/10.1103/PhysRevB.80.195405 Author(s): K. F. Allison, D. Borka, I. Radović, Lj. Hadžievski, and Z. L. Mišković<br/>We evaluate the stopping and image forces on a charged particle moving parallel to a doped sheet of graphene by using the dielectric-response formalism for graphene’s π -electron bands in the random phase approximation (RPA). The forces are presented as functions of the particle speed and the par...<br/>[Phys. Rev. B 80, 195405] Published Wed Nov 04, 2009 K. F. Allison, D. Borka, I. Radović, Lj. Hadžievski, and Z. L. Mišković 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.195405 Phys. Rev. B 80, 195405 text/html article Physical Review B 80 19 2009-11-04T00:00:00-05:00 195405 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.205402 Author(s): A. A. Shylau, J. W. Kłos, and I. V. Zozoulenko<br/>We present an analytical theory for the gate electrostatics and the classical and quantum capacitance of the graphene nanoribbons (GNRs) and compare it with the exact self-consistent numerical calculations based on the tight-binding p -orbital Hamiltonian within the Hartree approximation. We demonst...<br/>[Phys. Rev. B 80, 205402] Published Wed Nov 04, 2009 A. A. Shylau, J. W. Kłos, and I. V. Zozoulenko 2009-11-04T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.205402 Phys. Rev. B 80, 205402 text/html article Physical Review B 80 20 2009-11-04T00:00:00-05:00 205402 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevLett.103.196801 Author(s): Markus Müller, Matthias Bräuninger, and Björn Trauzettel<br/>We investigate the temperature dependence of conductivity in ballistic graphene using Landauer transport theory. We obtain results which are qualitatively in agreement with many features recently observed in transport measurements on high mobility suspended graphene. The conductivity σ at high temp...<br/>[Phys. Rev. Lett. 103, 196801] Published Mon Nov 02, 2009 Markus Müller, Matthias Bräuninger, and Björn Trauzettel 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.196801 Phys. Rev. Lett. 103, 196801 text/html article Physical Review Letters 103 19 2009-11-02T00:00:00-05:00 196801 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevLett.103.196802 Author(s): Sunghun Park and H.-S. Sim<br/>We theoretically study the phase of the reflection amplitude of an electron (massive Dirac fermion) at a lateral potential step in Bernal-stacked bilayer graphene. The phase shows an anomalous jump of Ï€, as the electron incidence angle (relative to the normal direction to the step) varies to pass Â...<br/>[Phys. Rev. Lett. 103, 196802] Published Mon Nov 02, 2009 Sunghun Park and H.-S. Sim 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.196802 Phys. Rev. Lett. 103, 196802 text/html article Physical Review Letters 103 19 2009-11-02T00:00:00-05:00 196802 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevB.80.193401 Author(s): Norman J. Morgenstern Horing<br/>We analyze the plasmon spectrum of a graphene sheet in the vicinity of a thick plasmalike substrate, finding linear dispersion in some parameter ranges.<br/>[Phys. Rev. B 80, 193401] Published Mon Nov 02, 2009 Norman J. Morgenstern Horing 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.193401 Phys. Rev. B 80, 193401 text/html article Physical Review B 80 19 2009-11-02T00:00:00-05:00 193401 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.195401 Author(s): A. A. Avetisyan, B. Partoens, and F. M. Peeters<br/>It is known that a perpendicular electric field applied to multilayers of graphene modifies the electronic structure near the K point and may induce an energy gap in the electronic spectrum which is tunable by the gate voltage. Here we consider a system of graphene multilayers in the presence of a p...<br/>[Phys. Rev. B 80, 195401] Published Mon Nov 02, 2009 A. A. Avetisyan, B. Partoens, and F. M. Peeters 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.195401 Phys. Rev. B 80, 195401 text/html article Physical Review B 80 19 2009-11-02T00:00:00-05:00 195401 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.195402 Author(s): A. Arndt, D. Spoddig, P. Esquinazi, J. Barzola-Quiquia, S. Dusari, and T. Butz<br/>We investigate the dependence of the electrical resistivity and magnetoresistance of single crystalline micrometer-sized graphite samples of a few tens of nanometers thick on the defect concentration produced by irradiation at low fluences. We show that the carrier density of graphite n is extremely...<br/>[Phys. Rev. B 80, 195402] Published Mon Nov 02, 2009 A. Arndt, D. Spoddig, P. Esquinazi, J. Barzola-Quiquia, S. Dusari, and T. Butz 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.195402 Phys. Rev. B 80, 195402 text/html article Physical Review B 80 19 2009-11-02T00:00:00-05:00 195402 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.205101 Author(s): R. Ma, L. Sheng, R. Shen, M. Liu, and D. N. Sheng<br/>We numerically study the quantum Hall effect (QHE) in bilayer graphene based on tight-binding model in the presence of disorder. Two distinct QHE regimes are identified in the full energy band separated by a critical region with nonquantized Hall Effect. The Hall conductivity around the band center ...<br/>[Phys. Rev. B 80, 205101] Published Mon Nov 02, 2009 R. Ma, L. Sheng, R. Shen, M. Liu, and D. N. Sheng 2009-11-02T00:00:00-05:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.205101 Phys. Rev. B 80, 205101 text/html article Physical Review B 80 20 2009-11-02T00:00:00-05:00 205101 Electronic structure: wide-band, narrow-band, and strongly correlated systems Electronic structure: wide-band, narrow-band, and strongly correlated systems http://link.aps.org/doi/10.1103/PhysRevLett.103.187204 Author(s): Zhuhua Zhang, Changfeng Chen, and Wanlin Guo<br/>We predict a magnetoelectric (ME) effect in graphene nanoribbons on silicon substrates by first-principles calculations. It is shown that a bias voltage can produce strong linear ME effect by driving charge transfer between the nanoribbons and substrate, thus tuning the exchange splitting of magneti...<br/>[Phys. Rev. Lett. 103, 187204] Published Fri Oct 30, 2009 Zhuhua Zhang, Changfeng Chen, and Wanlin Guo 2009-10-30T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.187204 Phys. Rev. Lett. 103, 187204 text/html article Physical Review Letters 103 18 2009-10-30T00:00:00-04:00 187204 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevLett.103.186803 Author(s): C. Faugeras, M. Amado, P. Kossacki, M. Orlita, M. Sprinkle, C. Berger, W. A. de Heer, and M. Potemski<br/>Magneto-Raman scattering study of the E_{2g} optical phonons in multilayer epitaxial graphene grown on a carbon face of SiC is presented. At 4.2 K in magnetic field up to 33 T, we observe a series of well-pronounced avoided crossings each time the optically active inter-Landau level transition is ...<br/>[Phys. Rev. Lett. 103, 186803] Published Thu Oct 29, 2009 C. Faugeras, M. Amado, P. Kossacki, M. Orlita, M. Sprinkle, C. Berger, W. A. de Heer, and M. Potemski 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.186803 Phys. Rev. Lett. 103, 186803 text/html article Physical Review Letters 103 18 2009-10-29T00:00:00-04:00 186803 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevB.80.153414 Author(s): J. E. Bunder and Hsiu-Hau Lin<br/>Carrier-mediated exchange coupling, known as Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction, plays a fundamental role in itinerant ferromagnetism and has great application potentials in spintronics. A recent theorem based on the imaginary-time method shows that the oscillatory RKKY interaction bec...<br/>[Phys. Rev. B 80, 153414] Published Thu Oct 29, 2009 J. E. Bunder and Hsiu-Hau Lin 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.153414 Phys. Rev. B 80, 153414 text/html article Physical Review B 80 15 2009-10-29T00:00:00-04:00 153414 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.165430 Author(s): B. R. K. Nanda and S. Satpathy<br/>We study how the electronic structure of the bilayer graphene (BLG) is changed by electric field and strain from ab initio density-functional calculations using the linear muffin-tin orbital and the linear augmented plane wave methods. Both hexagonal and Bernal stacked structures are considered. We ...<br/>[Phys. Rev. B 80, 165430] Published Thu Oct 29, 2009 B. R. K. Nanda and S. Satpathy 2009-10-29T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165430 Phys. Rev. B 80, 165430 text/html article Physical Review B 80 16 2009-10-29T00:00:00-04:00 165430 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevLett.103.186802 Author(s): Li Yang, Jack Deslippe, Cheol-Hwan Park, Marvin L. Cohen, and Steven G. Louie<br/>We present first-principles calculations of many-electron effects on the optical response of graphene, bilayer graphene, and graphite employing the GW-Bethe Salpeter equation approach. We find that resonant excitons are formed in these two-dimensional semimetals. The resonant excitons give rise to ...<br/>[Phys. Rev. Lett. 103, 186802] Published Wed Oct 28, 2009 Li Yang, Jack Deslippe, Cheol-Hwan Park, Marvin L. Cohen, and Steven G. Louie 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.186802 Phys. Rev. Lett. 103, 186802 text/html article Physical Review Letters 103 18 2009-10-28T00:00:00-04:00 186802 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevB.80.155453 Author(s): H. Şahin, S. Cahangirov, M. Topsakal, E. Bekaroglu, E. Akturk, R. T. Senger, and S. Ciraci<br/>Using first-principles plane-wave calculations, we investigate two-dimensional (2D) honeycomb structure of group-IV elements and their binary compounds as well as the compounds of group III-V elements. Based on structure optimization and phonon-mode calculations, we determine that 22 different honey...<br/>[Phys. Rev. B 80, 155453] Published Wed Oct 28, 2009 H. Şahin, S. Cahangirov, M. Topsakal, E. Bekaroglu, E. Akturk, R. T. Senger, and S. Ciraci 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155453 Phys. Rev. B 80, 155453 text/html article Physical Review B 80 15 2009-10-28T00:00:00-04:00 155453 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.155454 Author(s): Liwei Jiang, Yisong Zheng, Cuishan Yi, Haidong Li, and Tianquan Lü<br/>By means of the transfer-matrix technique, we present an analytical solution of the edge states localized at the lateral zigzag edge of a semi-infinite graphene nanoribbon. The electric field tuning on the energy level, the localized length, and the local electron probability distribution of an edge...<br/>[Phys. Rev. B 80, 155454] Published Wed Oct 28, 2009 Liwei Jiang, Yisong Zheng, Cuishan Yi, Haidong Li, and Tianquan Lü 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155454 Phys. Rev. B 80, 155454 text/html article Physical Review B 80 15 2009-10-28T00:00:00-04:00 155454 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.165429 Author(s): O. V. Gamayun, E. V. Gorbar, and V. P. Gusynin<br/>It is well known that there are resonant states with complex energy for the supercritical Coulomb impurity in graphene. We show that opening of a quasiparticle gap decreases the imaginary part of energy, |Im E| , of these states and stabilizes the system. For gapless quasiparticles with strong Cou...<br/>[Phys. Rev. B 80, 165429] Published Wed Oct 28, 2009 O. V. Gamayun, E. V. Gorbar, and V. P. Gusynin 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165429 Phys. Rev. B 80, 165429 text/html article Physical Review B 80 16 2009-10-28T00:00:00-04:00 165429 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.169906 Author(s): Andrea M. Fischer, Alexander B. Dzyubenko, and Rudolf A. Römer<br/>[Phys. Rev. B 80, 169906] Published Wed Oct 28, 2009 Andrea M. Fischer, Alexander B. Dzyubenko, and Rudolf A. Römer 2009-10-28T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.169906 Phys. Rev. B 80, 169906 text/html article Physical Review B 80 16 2009-10-28T00:00:00-04:00 169906 ERRATA ERRATA http://link.aps.org/doi/10.1103/PhysRevB.80.153412 Author(s): G. Montambaux, F. Piéchon, J.-N. Fuchs, and M. O. Goerbig<br/>We study under which general conditions a pair of Dirac points in the electronic spectrum of a two-dimensional crystal may merge into a single one. The merging signals a topological transition between a semimetallic phase and a band insulator. We derive a universal Hamiltonian that describes the phy...<br/>[Phys. Rev. B 80, 153412] Published Tue Oct 27, 2009 G. Montambaux, F. Piéchon, J.-N. Fuchs, and M. O. Goerbig 2009-10-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.153412 Phys. Rev. B 80, 153412 text/html article Physical Review B 80 15 2009-10-27T00:00:00-04:00 153412 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.155450 Author(s): Ken-ichi Sasaki, Masayuki Yamamoto, Shuichi Murakami, Riichiro Saito, Mildred S. Dresselhaus, Kazuyuki Takai, Takanori Mori, Toshiaki Enoki, and Katsunori Wakabayashi<br/>The quantum corrections to the energies of the Γ point optical phonon modes (Kohn anomalies) in graphene nanoribbons (NRs) are investigated. We show theoretically that the longitudinal optical (LO) modes undergo a Kohn anomaly effect, while the transverse optical (TO) modes do not. In relation to R...<br/>[Phys. Rev. B 80, 155450] Published Tue Oct 27, 2009 Ken-ichi Sasaki, Masayuki Yamamoto, Shuichi Murakami, Riichiro Saito, Mildred S. Dresselhaus, Kazuyuki Takai, Takanori Mori, Toshiaki Enoki, and Katsunori Wakabayashi 2009-10-27T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155450 Phys. Rev. B 80, 155450 text/html article Physical Review B 80 15 2009-10-27T00:00:00-04:00 155450 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevLett.103.187201 Author(s): Ruijuan Xiao, Daniel Fritsch, Michael D. Kuz’min, Klaus Koepernik, Helmut Eschrig, Manuel Richter, Knut Vietze, and Gotthard Seifert<br/>It is demonstrated by means of density functional and ab initio quantum chemical calculations, that transition-metal–carbon systems have the potential to enhance the presently available area density of magnetic recording by 3 orders of magnitude. As a model system, Co_{2} benzene with a diameter...<br/>[Phys. Rev. Lett. 103, 187201] Published Mon Oct 26, 2009 Ruijuan Xiao, Daniel Fritsch, Michael D. Kuz’min, Klaus Koepernik, Helmut Eschrig, Manuel Richter, Knut Vietze, and Gotthard Seifert 2009-10-26T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.187201 Phys. Rev. Lett. 103, 187201 text/html article Physical Review Letters 103 18 2009-10-26T00:00:00-04:00 187201 Condensed Matter: Electronic Properties, etc. Condensed Matter: Electronic Properties, etc. http://link.aps.org/doi/10.1103/PhysRevB.80.155444 Author(s): A. Dyrdał, V. K. Dugaev, and J. Barnaś<br/>We consider spin Hall effect in a system of massless Dirac fermions in a graphene lattice. Two types of spin-orbit interaction, pertinent to the graphene lattice, are taken into account—the intrinsic and Rashba terms. Assuming perfect crystal lattice, we calculate the topological contribution to s...<br/>[Phys. Rev. B 80, 155444] Published Fri Oct 23, 2009 A. Dyrdał, V. K. Dugaev, and J. Barnaś 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155444 Phys. Rev. B 80, 155444 text/html article Physical Review B 80 15 2009-10-23T00:00:00-04:00 155444 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.155445 Author(s): C. Y. Wang, K. Mylvaganam, and L. C. Zhang<br/>Wrinkling was observed for a circular monolayer graphene sheet in nanoindentation based on molecular-dynamics simulations. The mechanics fundamentals of this phenomenon were then explored using a two-dimensional plate model. It was found that the graphene wrinkles when the indentation depth reaches ...<br/>[Phys. Rev. B 80, 155445] Published Fri Oct 23, 2009 C. Y. Wang, K. Mylvaganam, and L. C. Zhang 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.155445 Phys. Rev. B 80, 155445 text/html article Physical Review B 80 15 2009-10-23T00:00:00-04:00 155445 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.165424 Author(s): Valeri N. Kotov, Bruno Uchoa, and A. H. Castro Neto<br/>We examine the 1/N expansion, where N is the number of two-component Dirac fermions for Coulomb interactions in graphene with a gap of magnitude Δ=2m . We find that for Nα⪢1 , where α is graphene’s “fine-structure constant,” there is a crossover as a function of distance r from the usual ...<br/>[Phys. Rev. B 80, 165424] Published Fri Oct 23, 2009 Valeri N. Kotov, Bruno Uchoa, and A. H. Castro Neto 2009-10-23T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.165424 Phys. Rev. B 80, 165424 text/html article Physical Review B 80 16 2009-10-23T00:00:00-04:00 165424 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevLett.103.179904 Author(s): Paolo Lacovig, Monica Pozzo, Dario Alfe, Paolo Vilmercati, Alessandro Baraldi, and Silvano Lizzit<br/>[Phys. Rev. Lett. 103, 179904] Published Thu Oct 22, 2009 Paolo Lacovig, Monica Pozzo, Dario Alfe, Paolo Vilmercati, Alessandro Baraldi, and Silvano Lizzit 2009-10-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevLett.103.179904 Phys. Rev. Lett. 103, 179904 text/html article Physical Review Letters 103 17 2009-10-22T00:00:00-04:00 179904 Errata Errata http://link.aps.org/doi/10.1103/PhysRevB.80.161409 Author(s): V. K. Tewary<br/>A technique using causal Green’s function is proposed for extending and bridging multiple time scales in molecular dynamics for modeling time-dependent processes at the atomistic level in nanomaterials and other physical, chemical, and biological systems. The technique is applied to model propagat...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 161409] Published Thu Oct 22, 2009 V. K. Tewary 2009-10-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.161409 Phys. Rev. B 80, 161409 text/html article Physical Review B 80 16 2009-10-22T00:00:00-04:00 161409 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems http://link.aps.org/doi/10.1103/PhysRevB.80.161410 Author(s): K.-C. Chuang, A. M. R. Baker, and R. J. Nicholas<br/>We report far-infrared magnetoabsorption measurements of thin graphite samples exfoliated from highly ordered pyrolytic graphite showing transitions originating from the K and the H points. For the K point, both cyclotron resonance and interband transitions are measured which are not described well ...<br/><img src="http://prola.aps.org/graphics/rapid30x30.gif" width="30" height="30" alt="Rapid Communication"/><br/>[Phys. Rev. B 80, 161410] Published Thu Oct 22, 2009 K.-C. Chuang, A. M. R. Baker, and R. J. Nicholas 2009-10-22T00:00:00-04:00 Personal use only, all commercial or other reuse prohibited 10.1103/PhysRevB.80.161410 Phys. Rev. B 80, 161410 text/html article Physical Review B 80 16 2009-10-22T00:00:00-04:00 161410 Surface physics, nanoscale physics, low-dimensional systems Surface physics, nanoscale physics, low-dimensional systems