Magic angles, AMRO and interference effects in layered conductors

A. G. Lebed, N. M. Bagmet, M. J. Naughton

Research output: Contribution to journalConference article

5 Scopus citations

Abstract

We analytically solve kinetic equation in the extended Brillouin zone and demonstrate that the interference effects which occur as electrons move along open orbits result in the appearance of Magic Angle (MA) minima of resistivity. A comparison of our theory with MA phenomena observed in resitivity component ρ (H, α), perpendicular to conducting layers in (TMTSF)2X and α -(BEDT-TTF)2MHg(SCN)4 conductors, shows a good qualitative agreement, including the first explanation why MA's with large indexes, N > 1, are observed in (TMTSF)2X (X = ClO4 and PF6) and α-(BEDT-TTF)2MHg(SCN) 4 compounds. Both physical meaning of the above mentioned interference effects and mathematical expressions for ρ (H, α) are different from that in a so-called OsadaÕs model.

Original languageEnglish (US)
Pages (from-to)77-80
Number of pages4
JournalJournal De Physique. IV : JP
Volume114
DOIs
StatePublished - 2004
Externally publishedYes
EventISCOM 2003: 5th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets - Port-Bourgenay, France
Duration: Sep 21 2003Sep 26 2003

Keywords

  • Magic angles
  • Organic conductors
  • Quantum oscillations

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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