أعرض تسجيلة المادة بشكل مبسط

dc.creator Kopelevich Yakov
dc.date 2003
dc.date.accessioned 2013-06-01T10:51:09Z
dc.date.available 2013-06-01T10:51:09Z
dc.date.issued 2013-06-01
dc.identifier http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332003000400020
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=01039733&date=2003&volume=33&issue=4&spage=737
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/8324
dc.description Although a considerable amount of the research work has been done on graphite, its physical properties are still not well understood, and novel phenomena such as the magnetic-field-driven metal-insulator transition (MIT), the quantum Hall effect, ferromagnetic and superconducting correlations have recently been revealed. Theoretical analysis suggests that the MIT in graphite is the condensed-matter realization of the magnetic catalysis phenomenon known in relativistic theories of (2 + 1) - dimensional Dirac fermions (DF), i. e. that the applied field opens an insulating gap in the spectrum of DF, associated with the electron-hole pairing. On the other hand, we demonstrate in this paper that a two parameter scaling analysis proposed by Das and Doniach [D. Das and S. Doniach, Phys. Rev. B 64, 134511 (2001)] to characterize the magnetic-field-tuned Bose metal - insulator transition can be well applied to the MIT observed in graphite. We discuss the possibility that the MIT in graphite is associated with the transition between Bose metal and excitonic insulator states.
dc.publisher Sociedade Brasileira de Física
dc.source Brazilian Journal of Physics
dc.title Graphite as a bose metal


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أعرض تسجيلة المادة بشكل مبسط