A. H. A. Hassan, O. Mironov, A. Dobbie, J. H. Morris, S. Gabáni, A. Feher, E. Čižmár, V. Andrievskii, I. Berkutov
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引用次数: 1
摘要
本文研究了应变锗异质结构中二维空穴气体的结构表征和磁输运性质。利用Schubnikov - de - Haas振荡对正常结构和倒转结构都观察到极高的空穴迁移率,以及迄今为止最低的有效质量值。该通道被证实为纯锗,具有低背景杂质散射,改善了空穴输运。
Structural and electrical characterization of SiGe heterostructures containing a pure Ge strained quantum well
In this paper we present structural characterization and magneto-transport properties of the two dimensional hole gas in strained germanium heterostructures. An extremely high hole mobility has observed, along with the lowest value of effective mass to date, using Schubnikov de Haas oscillations for both normal and inverted structures. The channel is confirmed to be pure germanium, with low background impurity scattering that improves the hole transport.