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Study of the angular dependent magnetoresistance oscillations in α-(BEDT-TTF)2MHg(SCN)4[M: K, NH4

✍ Scribed by Y. Iye; R. Yagi; N. Hanasaki; S. Kagoshima; H. Mori; H. Fujimoto; G. Saito

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 321 KB
Volume: 201
Category: Article
ISSN: 0921-4526
DOI: 10.1016/0921-4526(94)91140-1

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✦ Synopsis

The angular dependent magnetoresistance oscillation (ADMRO) effect in at-(BEDT-TTF)2-MHg(SCN)4 I-M: K, NH4] has been studied by two-axis rotation of the crystals in magnetic field. While the ADMRO in NH4Hg-salt is of the standard type arising from a warped cylindrical Fermi surface, that in KHg-salt is a novel type to be attributed to an open Fermi sheet. The anomalous ADMRO behavior of KHg-salt is reproduced by a model calculation based on a semiclassical trajectory of electrons on a weakly modulated open Fermi sheet.

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