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19932026
most citedPrediction and observation of the first antiferromagnetic topological insulator

1.2k citations

Showing 2013Show all

31 papers · 1 filter

math-ph2013★ 3 cited

Gauge symmetries in 2D field theory

S. L. Lyakhovich, A. A. Sharapov

A simple algorithm is proposed for constructing generators of gauge symmetry as well as reducibility relations for arbitrary systems of field equations in two dimensions.

cond-mat.str-el2013★ 50 cited

Strong ferromagnetism at the surface of an antiferromagnet caused by buried magnetic moments

Alla Chikina, Marc Höppner, Silvia Seiro +13

Carrying a large, pure spin magnetic moment of 7 bohr/atom in the half-filled 4f shell, divalent europium is an outstanding element for assembling novel magnetic devices in whic…

astro-ph.CO2013★ 6 cited

Interacting photon-baryon fluid, warm dark matter and the first acoustic peak

Julio. C. Fabris, Alan M. Velasquez-Toribio, Winfried Zimdahl +1

The Reduced Relativistic Gas (RRG) model was introduced by A. Sakharov in 1965 for deriving the cosmic microwave background (CMB) spectrum. It was recently reinvented by some of us…

hep-th2013

Finite field-energy of a point charge in QED

Caio V. Costa, Dmitri M. Gitman, Anatoly E. Shabad

We consider a simple nonlinear (quartic in the fields) gauge-invariant modification of classical electrodynamics, which possesses a regularizing ability sufficient to make the fiel…

hep-th2013★ 2 cited

Supersymmetric invariant theories

S. R. Esipova, P. M. Lavrov, O. V. Radchenko

We study field models for which a quantum action (i.e. the action appearing in the generating functional of Green functions) is invariant under supersymmetric transformations. We d…

hep-ph2013★ 6 cited

Creation of Dirac neutrinos in a dense medium with time-dependent effective potential

Maxim Dvornikov, S. P. Gavrilov, D. M. Gitman

We consider Dirac neutrinos interacting with background fermions in the frame of the standard model. We demonstrate that a time-dependent effective potential is quite possible in a…

astro-ph.SR2013★ 50 cited

Numerical solutions of the modified Lane-Emden equation in f(R)-gravity

R. Farinelli, M. De Laurentis, S. Capozziello +1

The modified Lane-Emden equation for stellar hydrostatic equilibrium in f(R)-gravity is numerically solved by using an iterative procedure. Such an integro-differential equation ca…

physics.plasm-ph2013★ 1 cited

Attractive interaction between ions inside a quantum plasma structure

Maxim Dvornikov

We construct the model of a quantum spherically symmetric plasma structure based on radial oscillations of ions. We suppose that ions are involved in ion-acoustic plasma oscillatio…

hep-th2013★ 17 cited

Magnetic response to applied electrostatic field in external magnetic field

T. C. Adorno, D. M. Gitman, A. E. Shabad

We show, within QED and other possible nonlinear theories, that a static charge localized in a finite domain of space becomes a magnetic dipole, if it is placed in an external (con…

hep-th2013★ 31 cited

On the gauge symmetries of Maxwell-like higher-spin Lagrangians

D. Francia, S. L. Lyakhovich, A. A. Sharapov

In their simplest form, metric-like Lagrangians for higher-spin massless fields display constrained gauge symmetries, unless auxiliary fields are introduced or locality is foregone…

hep-ph2013★ 43 cited

Selected strong decay modes of Y(4260)

Yubing Dong, Amand Faessler, Thomas Gutsche +1

In present work the Y(4260) resonance is considered as a weakly bound state of a pseudoscalar D and an axial D1 charm meson. We consider the two-body decay Y(4260) -> Zc(3900) + pi…

cond-mat.mtrl-sci2013★ 46 cited

The quasiparticle band gap in the topological insulator Bi2Te3

I. A. Nechaev, E. V. Chulkov

We present a theoretical study of dispersion of states which form the bulk band-gap edges in the three-dimensional topological insulator Bi2Te3. Within density functional theory, w…

hep-ph2013★ 60 cited

Polarization effects in the cascade decay Lambda_b -> Lambda(-> p pi-) + J/psi(-> l+ l-) in the covariant confined quark model

Thomas Gutsche, Mikhail A. Ivanov, Jurgen G. Korner +2

We calculate the invariant and helicity amplitudes for the nonleptonic decay Lambda_b -> Lambda + J/psi, psi(2S) in the covariant confined quark model. We discuss joint angular dec…

cond-mat.mtrl-sci2013★ 67 cited

Exchange interaction and its tuning in magnetic binary chalcogenides

M. G. Vergniory, D. Thonig, M. Hoffmann +11

Using a first-principles Green's function approach we study magnetic properties of the magnetic binary chalcogenides Bi2Te3, Bi2Se3, and Sb2Te3. The magnetic coupling between trans…

math-ph2013★ 11 cited

Pattern formation in terms of semiclassically limited distribution on lower-dimensional manifolds for nonlocal Fisher--Kolmogorov--Petrovskii--Piskunov equation

E. A. Levchenko, A. V. Shapovalov, A. Yu Trifonov

We have investigated the pattern formation in systems described by the nonlocal Fisher--Kolmogorov--Petrovskii--Piskunov equation for the cases where the dimension of the pattern c…

hep-th2013

Topological phase states of the SU(3) QCD

Alexander P. Protogenov, Evgueni V. Chulkov, Jeffrey C. Y. Teo

We consider the topologically nontrivial phase states and the corresponding topological defects in the SU(3) d-dimensional quantum chromodynamics (QCD). The homotopy groups for top…

hep-th2013★ 9 cited

Radiation of de-excited electrons at large times in a strong electromagnetic plane wave

P. O. Kazinski

The late time asymptotics of the physical solutions to the Lorentz-Dirac equation in the electromagnetic external fields of simple configurations -- the constant homogeneous field,…

hep-ph2013★ 95 cited

Light-front quark model consistent with Drell-Yan-West duality and quark counting rules

Thomas Gutsche, Valery E. Lyubovitskij, Ivan Schmidt +1

We propose a phenomenological light-front wave function for hadrons with arbitrary twist-dimension (mesons, baryons and multiquark states), which gives the correct scaling behavior…

cond-mat.mes-hall2013★ 18 cited

Nonlocal Edge State Transport in Topological Insulators

Alexander P. Protogenov, Evgueni V. Chulkov, Valery A. Verbus

We use the N-terminal scheme for studying the edge state transportin in two-dimensional topological insulators. We find the universal nonlocal response in the ballistic transport a…

hep-ph2013★ 20 cited

Electromagnetic structure of the nucleon and the Roper resonance in a light-front quark approach

Igor T. Obukhovsky, Amand Faessler, Thomas Gutsche +1

A relativistic light-front quark model is used to describe both the elastic nucleon and nucleon-Roper transition form factors in a large Q2 range, up to 35 GeV2 for the elastic and…

hep-th2013★ 3 cited

On Lagrangian Formulation for Spin (2,1,1) Massive Tensor Field on Minkowski Backgrounds

A. A. Reshetnyak, P. Yu. Moshin

We derive the Lagrangian for a new model of a massive rank-4 tensor field with generalized spin (2,1,1) in Minkowski spacetime of any dimension d>5, by using dimensional reduction…

cond-mat.mes-hall2013★ 23 cited

Unoccupied topological surface state in BiTeSe

Munisa Nurmamat, E. E. Krasovskii, K. Kuroda +10

Bias voltage dependent scattering of the topological surface state is studied by scanning tunneling microscopy/spectroscopy for a clean surface of the topological insulator BiT…

cond-mat.mtrl-sci2013★ 65 cited

Magnetic proximity effect in the 3D topological insulator/ferromagnetic insulator heterostructure

V. N. Men'shov, V. V. Tugushev, S. V. Eremeev +2

We theoretically study the magnetic proximity effect in the three dimensional (3D) topological insulator/ferromagnetic insulator (TI/FMI) structures in the context of possibility t…

cond-mat.mtrl-sci2013

Computational investigation of plastic deformation in face-centered cubic materials

Mikhail Semenov, Svetlana Kolupaeva

A mathematical model of plastic deformation in face-centered cubic (FCC) materials based on a balance model taking into account fundamental properties of deformation defects of a c…