On the negative magnetoresistance puzzle at variable range hopping at low temperatures

被引：0
|
作者：
Rentzsch, R
Sandow, B
Ionov, AN
Agrinskaya, NV
Lea, MJ
Fozooni, P
机构：
[1] AF IOFFE PHYS TECH INST,ST PETERSBURG 194021,RUSSIA
[2] UNIV LONDON,ROYAL HOLLOWAY & BEDFORD NEW COLL,DEPT PHYS,EGHAM TW20 0EX,SURREY,ENGLAND
来源：
CZECHOSLOVAK JOURNAL OF PHYSICS | 1996年 / 46卷
关键词：
D O I：
10.1007/BF02570210
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
in this work, we report the results of magnetoresistance studies of variable range hopping down to 30 mK in isotopically engineered Ge with low compensation, and in n-CdTe crystals. Experimentally we find a decrease and disappearance of the negative magnetoresistance with decreasing temperature down to 200 my in weak magnetic fields. Such behaviour is in disagreement with the quantum interference theory of Nguen, Spivak and Shklovskii.
引用
收藏
页码：2447 / 2448
页数：2
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