Observation of semiconductor‐semimetal transition in InAs‐GaSb superlattices
作者:
L. L. Chang,
N. Kawai,
G. A. Sai‐Halasz,
R. Ludeke,
L. Esaki,
期刊:
Applied Physics Letters
(AIP Available online 1979)
卷期:
Volume 35,
issue 12
页码: 939-942
ISSN:0003-6951
年代: 1979
DOI:10.1063/1.91013
出版商: AIP
数据来源: AIP
摘要:
The semiconductor‐semimetal transition in InAs‐GaSb superlattices is observed at a layer thickness in the vicinity of 100 A˚. The transition manifests itself in an increase in the measured carrier concentration as a result of electron transfer from GaSb to InAs when ground subbands of electrons and heavy holes cross each other. Shubnikov‐de Haas measurements confirm the carrier enhancement in the semimetallic state.
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