منابع مشابه
Conductivity of paired composite fermions.
We develop a phenomenological description of the nu=5/2 quantum Hall state in which the Halperin-Lee-Read theory of the half-filled Landau level is combined with a p-wave pairing interaction between composite fermions (CFs). The electromagnetic response functions for the resulting mean-field superconducting state of the CFs are calculated and used in an RPA calculation of the q and omega depend...
متن کاملPhonon Scattering of Composite Fermions
We study the principal aspects of the interaction between acoustic phonons and two-dimensional electrons in quantizing magnetic elds corresponding to even denominator fractions. Using the composite fermion approach we derive the vertex of the electron-phonon coupling mediated by the Chern-Simons gauge eld. We estimate acoustic phonon contribution to electronic mobility, phonon-drag thermopower,...
متن کاملState : Magnetized Composite Fermions
The Fermionic Chern-Simons approach has had remarkable success in the description of quantum Hall states at even denominator filling fractions ν = 1 2m . In this paper we review a number of recent works concerned with modeling this state as a Landau-Silin Fermi liquid. We will then focus on one particular problem with constructing such a Landau theory that becomes apparent in the limit of high ...
متن کاملDephasing time of composite fermions.
We study the dephasing of fermions interacting with a fluctuating transverse gauge field. The divergence of the imaginary part of the fermion self energy at finite temperatures is shown to result from a breakdown of Fermi’s golden rule due to a faster than exponential decay in time. The strong dephasing affects experiments where phase coherence is probed. This result is used to describe the sup...
متن کاملDrude Conductivity of Dirac Fermions in Graphene
Jason Horng,1 Chi-Fan Chen,1 Baisong Geng,1 Caglar Girit,1 Yuanbo Zhang,2 Zhao Hao,3,4 Hans A. Bechtel,3 Michael Martin,3 Alex Zettl,1,5 Michael F. Crommie,1,5 Y. Ron Shen,1,5 and Feng Wang1,5,* 1Department of Physics, University of California at Berkeley, Berkeley, California 94720, USA 2Department of Physics, Fudan University, Shanghai 200433, China 3Advanced Light Source Division, Lawrence B...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2003
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.91.046804