Journal ArticleDOI
Quantum oscillations and negative magnetoresistance in the organic metal beta "(BEDT-TTF)2AuBr2.
F. L. Pratt,A.J. Fisher,William Hayes,John Singleton,S. J. R. M. Spermon,M. Kurmoo,Peter Day +6 more
TLDR
Shubnikov-de Haas oscillations are observed in the low-temperature magnetoresistance of the organic metal )3"(BEDT-TTF)2AuBr2, which indicate the presence of small carrier pockets in the Fermi surface.Abstract:
Shubnikov-de Haas oscillations are observed in the low-temperature magnetoresistance of the organic metal )3\"(BEDT-TTF)2AuBr2, which indicate the presence of small carrier pockets in the Fermi surface. The nonoscillatory part of the magnetoresistance is highly anisotropic, and in one current direction an anomalously large negative magnetoresistance is observed. Some possible explanations for the negative magnetoresistance are considered, including an explanation based on magnetic-field-induced alignment of the carrier motion in the presence of scattering from internal boundaries.read more
Citations
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Journal ArticleDOI
Evidence of many-body renormalizations in some organic conductors
TL;DR: In this paper, the Coulomb correlation between cyclotron mass m c and Dingle temperature T D of electrons in the basal planes has been studied in heavy-electron organic conductors.
Journal ArticleDOI
Transport properties of organic conductor (BEDT-TTF)2KHg(SCN)4: II. Shubnikov-de Haas oscillations and spin-splitting effect
TL;DR: In this paper, the spin-splitting effect was analyzed and the series of the splitting oscillations results in the series g-factor; g=1.4n±0.6 (n is an odd number).
Journal ArticleDOI
Direct Observation of Spin-Splitting of the Shubnikov- de Haas Oscillations in a Quasi-Two-Dimensional Organic Conductor (BEDT-TTF)2KHg(SCN)4
Madoka Tokumoto,A. G. Swanson,James S. Brooks,Charles C. Agosta,Scott Hannahs,Nobumori Kinoshita,Hiroyuki Anzai,J. R. Anderson +7 more
TL;DR: A clear splitting in the Shubnikov-de Haas oscillation has been directly observed for the first time in a quasi-two-dimensional (2D) organic conductor (BEDT-TTF) 2 KHg(SCN) 4.
Journal ArticleDOI
Why do Physicists Love Charge-Transfer Salts?
TL;DR: In this paper, the authors describe some of the phenomena encountered in charge-transfer salts that make them very attractive for condensed-matter physicists, including reduced dimensionality, strong electron-electron and electron-phonon interactions and the proximity of antiferromagnetism, insulator states and superconductivity.
Journal ArticleDOI
Magnetotransport studies of the organic metals (BEDT-TTF)2AuBr2 and (BEDT-TTF)2KHg(SCN)4
Francis L. Pratt,M. Doporto,John Singleton,T.J.B.M. Janssen,J.A.A.J. Perenboom,M. Kurmoo,William Hayes,P. Day +7 more
TL;DR: In this article, magnetoresistance measurements on ET 2 KHg(SCN) 4 and β″ET 2 AuBr 2 were reported, and both showed Shubnikov-de Haas oscillation frequencies additional to those expected from band structure calculations.