Quantum Hall effect in graphene : A functional determinant approach

We start the paper with a brief presentation of the main characteristics of graphene, and of the Dirac theory of massless fermions in 2+1 dimensions obtained as the associated low-momentum effective theory, in the absence of external fields. We then summarize the main steps needed to obtain the Hall...

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Autores principales: Beneventano, Carlota Gabriela, Santángelo, Eve Mariel
Formato: Articulo
Lenguaje:Inglés
Publicado: 2008
Materias:
Física
Ciencias Exactas
Graphene
Hall conductivity
Dirac theory
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124165
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124165
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
Graphene
Hall conductivity
Dirac theory
spellingShingle Física
Ciencias Exactas
Graphene
Hall conductivity
Dirac theory
Beneventano, Carlota Gabriela
Santángelo, Eve Mariel
Quantum Hall effect in graphene : A functional determinant approach
topic_facet Física
Ciencias Exactas
Graphene
Hall conductivity
Dirac theory
description We start the paper with a brief presentation of the main characteristics of graphene, and of the Dirac theory of massless fermions in 2+1 dimensions obtained as the associated low-momentum effective theory, in the absence of external fields. We then summarize the main steps needed to obtain the Hall conductivity in the effective theory at finite temperature and density, with emphasis on its dependence on the phase of the Dirac determinant selected during the evaluation of the effective action. Finally, we discuss the behavior, under gauge transformations, of the contribution due to the lowest Landau level, and interpret gauge transformations as rotations of the corresponding spinors around the magnetic field.
format Articulo
Articulo
author Beneventano, Carlota Gabriela
Santángelo, Eve Mariel
author_facet Beneventano, Carlota Gabriela
Santángelo, Eve Mariel
author_sort Beneventano, Carlota Gabriela
title Quantum Hall effect in graphene : A functional determinant approach
title_short Quantum Hall effect in graphene : A functional determinant approach
title_full Quantum Hall effect in graphene : A functional determinant approach
title_fullStr Quantum Hall effect in graphene : A functional determinant approach
title_full_unstemmed Quantum Hall effect in graphene : A functional determinant approach
title_sort quantum hall effect in graphene : a functional determinant approach
publishDate 2008
url http://sedici.unlp.edu.ar/handle/10915/124165
work_keys_str_mv AT beneventanocarlotagabriela quantumhalleffectingrapheneafunctionaldeterminantapproach
AT santangeloevemariel quantumhalleffectingrapheneafunctionaldeterminantapproach
bdutipo_str Repositorios
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