首页   按字顺浏览 期刊浏览 卷期浏览 Anomalous Angular Dependence of Magnetoresistance in MCl2-GIC's (M=Cu and Co)
Anomalous Angular Dependence of Magnetoresistance in MCl2-GIC's (M=Cu and Co)

 

作者: Hirohiko Sato,   Toshiaki Enoki,   ItsukoS. Suzuki,   Masatsugu Suzuki,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  (Taylor Available online 2000)
卷期: Volume 340, issue 1  

页码: 19-24

 

ISSN:1058-725X

 

年代: 2000

 

DOI:10.1080/10587250008025436

 

出版商: Taylor & Francis Group

 

关键词: graphite intercalation compounds;transition metal chlorides;magnetoresistance;antiferromagnetic transition;dimensional crossover;quantum oscillation

 

数据来源: Taylor

 

摘要:

Angular dependence of thec-axis magnetoresistance of stage-1 and stage-2 MCI2GIC (M=Cu and Co) was measured. Stage-1 CuCl2GIC shows an angular dependent magnetore-sistance oscillation (ADMRO) characteristic in the systems having a periodically-warped cylindrical Fermi surface (FS). This means that the conduction along thec-axis is band-like in spite of extremely large anisotropy in conductivity. On the other hand, the angular dependence of the magnetoresistance of stage-2 CuCl2GIC and stage-1 CoCl2GIC can be interpreted as the mixture of ADMRO based on a band conduction and incoherent interlayer hopping. Stage-2 CoCl2GIC shows only incoherent hopping. In low magnetic field region, thec-axis resistances of stage-1 and stage-2 CoCl2GIC are affected by the magnetic phase transitions. Spin-dependent tunneling effect can explain this phenomenon.

 

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