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Showing 2011 · cond-mat.mes-hallShow all

13 papers · 2 filters

cond-mat.mes-hall2011★ 35 cited

Magnetophonon resonance in graphite: High-field Raman measurements and electron-phonon coupling contributions

Y. Kim, Y. Ma, A. Imambekov +5

We perform Raman scattering experiments on natural graphite in magnetic fields up to 45 T, observing a series of peaks due to interband electronic excitations over a much broader m…

cond-mat.mes-hall2011★ 33 cited

Quantum Hall effect in a singly and doubly connected 3D topological insulator

Oskar Vafek

The surface states of topological insulators, which behave as charged massless Dirac fermions, are studied in the presence of a quantizing uniform magnetic field. Using the method…

cond-mat.mes-hall2011★ 98 cited

Quantum Hall Effects in Graphene-Based Two-Dimensional Electron Systems

Yafis Barlas, Kun Yang, A. H. MacDonald

In this article we review the quantum Hall physics of graphene based two-dimensional electron systems, with a special focus on recent experimental and theoretical developments. We…

cond-mat.mes-hall2011★ 19 cited

Magnetic field induced inequivalent vortex zero modes in strained graphene

Bitan Roy

Zero energy states in the Dirac spectrum with U(1) symmetric massive vortices of various underlying insulating orders in strained graphene are constructed in the presence of the ma…

cond-mat.mes-hall2011★ 122 cited

Giant Superfluorescent Bursts from a Semiconductor Magnetoplasma

G. T. Noe, J. -H. Kim, J. Lee +6

Currently, considerable resurgent interest exists in the concept of superradiance (SR), i.e., accelerated relaxation of excited dipoles due to cooperative spontaneous emission, fir…

cond-mat.mes-hall2011★ 46 cited

Tunable interactions and phase transitions in Dirac materials in a magnetic field

Z. Papić, D. A. Abanin, Y. Barlas +1

A partially filled Landau level (LL) hosts a variety of correlated states of matter with unique properties. The ability to control these phases requires tuning the effective electr…

cond-mat.mes-hall2011

Spin Polarization Phenomena and Pseudospin Quantum Hall Ferromagnetism in the HgTe Quantum Well

M. V. Yakunin, A. V. Suslov, S. M. Podgornykh +2

The parallel field of a full spin polarization of the electron gas in a \Gamma8 conduction band of the HgTe quantum well was obtained from the magnetoresistance by three different…

cond-mat.mes-hall2011★ 226 cited

Decoherence in Crystals of Quantum Molecular Magnets

S. Takahashi, I. S. Tupitsyn, J. van Tol +3

Decoherence in Nature has become one of the most pressing problems in physics. Many applications, including quantum information processing, depend on understanding it; and fundamen…

cond-mat.mes-hall2011★ 9 cited

Tunable multi-photon Rabi oscillations in an electronic spin system

S. Bertaina, N. Groll, L. Chen +1

We report on multi-photon Rabi oscillations and controlled tuning of a multi-level system at room temperature (S=5/2 for Mn2+:MgO) in and out of a quasi-harmonic level configuratio…

cond-mat.mes-hall2011★ 27 cited

Asymmetric Berry-Phase Interference Patterns in a Single-Molecule Magnet

H. M. Quddusi, J. Liu, S. Singh +4

A Mn4 single-molecule magnet displays asymmetric Berry-phase interference patterns in the transverse-field (HT) dependence of the magnetization tunneling probability when a longitu…

cond-mat.mes-hall2011★ 10 cited

Edge States at the Interface between Monolayer and Bilayer Graphene

Zi-Xiang Hu, Wenxin Ding

The electronic property of monolayer-bilayer hybrid graphene with a zigzag interface is studied by both the Dirac equation and numerical calculation. There are two types of zigzag…

cond-mat.mes-hall2011★ 34 cited

Gapless excitations in the Haldane-Rezayi state: The thin torus limit

Alexander Seidel, Kun Yang

We study the thin torus limit of the Haldane-Rezayi state. Eight of the ten ground states are found to assume a simple product form in this limit, as is known to be the case for ma…

cond-mat.mes-hall2011★ 8 cited

Charge and Spin Reconstruction in Quantum Hall Strips

Yafis Barlas, Y. Joglekar, Kun Yang

We study the effect of electron-electron interactions on the charge and spin structures of a Quantum Hall strip in a triangularly confined potential. We find that the strip undergo…