Influence of heavy-hole scattering on the magnetotransport behaviour of p-type zero-gap Hg1-xMnxTe
Influence of heavy-hole scattering on the magnetotransport behaviour of p-type zero-gap Hg1-xMnxTe
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DOI：
10.1088/0268-1242/8/1s/037
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发表时间：
1993
影响因子：
1.9
通讯作者：
G. Zheng;Jinxi Shen;Shaoling Guo;D. Tang
中科院分区：
文献类型：
--
作者：
G. Zheng;Jinxi Shen;Shaoling Guo;D. Tang
在0.3 ~ 4.2K温度和7 T磁场下，零带隙p型Hg_（1-x）Mn_xTe（x=0.03和x=0.065）样品的磁电阻出现了显著的反常现象，包括与霍尔迁移率最小值有关的阶跃负磁电阻和反常的SdH振荡。讨论了两种样品的重空穴带内散射和从导带到价带的阈值散射。
The striking anomalies of the magnetoresistance of samples of zero bandgap p-type Hg1-xMnxTe (x=0.03 and x=0.065), including a step negative magnetoresistance associated with the Hall mobility minimum and an anomalous SdH oscillation, have been observed at temperatures from 0.3 to 4.2 K and in magnetic fields up to 7 T. The heavy-hole intraband scattering and threshold scattering from the conduction band to the valence band for two samples are discussed.