Angle-dependent magnetoresistance oscillations and magnetic breakdown in α-(BEDT-TTF)2KHg(SCN)4

被引：5
|
作者：
Uchida, K. [1 ]
Konoike, T. [1 ]
Osada, T. [1 ]
机构：
[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan
来源：
PHYSICA B-CONDENSED MATTER | 2010年 / 405卷 / 11期
关键词：
Organic conductor; Angle-dependent magnetoresistance; oscillation; Magnetic breakdown; BEDT-TTF;
D O I：
10.1016/j.physb.2010.02.031
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We present results of stereographic measurements of interlayer magnetoresistance in the quasi-two-dimensional (Q2D) organic conductor alpha-(BEDT-TTF)(2)KHg(SCN)(4) at around charge density wave (CDW) transition temperature T-c similar to 8 K. At 2 K in the CDW phase there exists the anomalous Lebed resonance pattern the amplitude of which is modulated by Danner-Chaikin oscillations in case of applied magnetic field close to the Q2D conducting plane On the contrary at 7 K Just below T-c, we have found that the Kajita oscillation of the cylindrical Fermi surfaces appears superposed on the anomalous Lebed resonance A quantum model of interlayer tunneling demonstrates these behaviors qualitatively These results suggest that magnetic breakdown plays a key role in anomalous angle-dependent magnetoresistance oscillations (C) 2010 Elsevier B V All rights reserved
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收藏
页码：S221 / S223
页数：3
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