5,444 research outputs found
RKKY interaction in graphene at finite temperature
In our publication from 8 years ago (Phys. Rev. B {\bf 84}, 115119 (2011)) we
calculated RKKY interaction between two magnetic impurities adsorbed on
graphene at zero temperature. We show in this short paper that the approach
based on Matsubara formalism and perturbation theory for the thermodynamic
potential in the imaginary time and coordinate representation which was used
then, can be easily generalized, and calculate RKKY interaction between the
magnetic impurities at finite temperature.Comment: LaTex, 4 pages. arXiv admin note: text overlap with arXiv:1108.130
Lift force due to odd (Hall) viscosity
We study the problem of flow of a neutral gas past an infinite cylinder at
right angle to its axis at low Reynolds number when the fluid is characterized
by broken time-reversal invariance, and hence by odd viscosity in addition to
the normal even one. We solve the Oseen approximation to Navier-Stokes equation
and calculate the lift force which appears due to the odd viscosity.Comment: LaTeX, 4 pages. As accepted for publication in PRE. arXiv admin note:
text overlap with arXiv:1605.02782 by other author
Symmetry classification of energy bands in graphene and silicene
We present the results of the symmetry classification of the electron energy
bands in graphene and silicene using group theory algebra and the
tight--binding approximation. The analysis is performed both in the absence and
in the presence of the spin-orbit coupling. We also discuss the bands merging
in the Brillouin zone symmetry points and the conditions for the latter to
become Dirac points.Comment: LaTeX, 6 pages, 2 eps Figures. A Figure and a citation were added.
Accepted for publication in Graphen
RANDOM MATRIX THEORY APPROACH TO THE INTENSITY DISTRIBUTIONS OF WAVES PROPAGATING IN A RANDOM MEDIUM
Statistical properties of coherent radiation propagating in a quasi - 1D
random media is studied in the framework of random matrix theory. Distribution
functions for the total transmission coefficient and the angular transmission
coefficient are obtained.Comment: 8 pages, latex, no figures. Submitted to Phys.Rev.
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