QUANTUM OSCILLATIONS OF MAGNETORESISTANCE IN A NEW ORGANIC SUPERCONDUCTOR (BEDT-TTF)2(NH4)HG(SCN)4

被引：51

作者：

OSADA, T

KAWASUMI, A

YAGI, R

KOGOSHIMA, S

MIURA, N

OSHIMA, M

MORI, H

NAKAMURA, T

SAITO, G

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

[2] INT SUPERCONDUCTIV TECHNOL CTR,ATSUTA KU,NAGOYA 456,JAPAN

[3] KYOTO UNIV,DEPT CHEM,SAKYO KU,KYOTO 606,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 75卷 / 11期

关键词：

D O I：

10.1016/0038-1098(90)90407-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Magnetotransport studies have been carried out in a new organic superconductor (BEDT-TTF)2(NH4)Hg(SCN)4 [bis(ethylenedithiolo)-tetrathiafulvalenium mercuric ammonium thiocyanate] using pulsed high magnetic fields up to 35T. We observed both the large Shubnikovda Haas (SdH) oscillations and the angle-dependent quantum oscillations. The experimental results suggest the existence of a cylindrical Fermi surface with weak warping. Its cross-sectional area parallel to the conducting plane is estimated from the SdH period Δ(1/B) = 0.0018 T-1 as 13% of that of the first Brillouin zone. Compared to the isostructual compound (BEDT-TTF)2KHg(SCN)4 which shows anomalous magnetotransport features, this compound shows very normal behaviours as expected in typical quasi-two-dimensional systems. © 1990.

引用

页码：901 / 905

页数：5

共 14 条

[11] A NEW AMBIENT PRESSURE ORGANIC SUPERCONDUCTOR BASED ON BEDT-TTF WITH 10.4-K HIGHER THAN 10-K [J].