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Quantum effects in (2+1)‐dimensional Dirac fermion and nodal superconductivity
Author(s) -
Morita Y.
Publication year - 2007
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200674627
Subject(s) - quasiparticle , physics , superconductivity , dirac (video compression format) , dirac fermion , quantum mechanics , condensed matter physics , fermion , quantum , quantum hall effect , electron , neutrino
We shall discuss quantum effects in (2+1)‐dimensional Dirac fermion (nodal quasiparticle in two dimensions) and also the relevance to nodal superconductivity. For example, we focus on quantum interference effects due to defects (so called localization ) in the ‘pi‐flux model’, where nodal quasiparticle realizes. It is related to the problem of e.g. graphene, cuprates and organics. Key ingredients in these problems are lo‐calization, topological defect, and quantum Hall effect (QHE). In the beginning, our emphasis is on ‘statics’ e.g. DoS, which is directly observed through the STM study. Its implication to ‘dynamics’ e.g. transport properties is also discussed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)