MAGNETIC-FIELD-INDUCED TYPE-I-]TYPE-II TRANSITION IN A SEMIMAGNETIC CDTE/CD0.93MN0.07TE SUPERLATTICE

被引:99
作者
DELEPORTE, E [1 ]
BERROIR, JM [1 ]
BASTARD, G [1 ]
DELALANDE, C [1 ]
HONG, JM [1 ]
CHANG, LL [1 ]
机构
[1] IBM CORP,THOMAS J WATSON RES CTR,DIV RES,YORKTOWN HTS,NY 10598
来源
PHYSICAL REVIEW B | 1990年 / 42卷 / 09期
关键词
D O I
10.1103/PhysRevB.42.5891
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Magnetophotoluminescence- and photoluminescence-excitation-spectroscopy experiments are performed up to 5 T at 1.7 K in a 111 -grown CdTe/Cd0.93Mn0.07Te superlattice. The results are compared with calculations of the level energies and of the exciton binding energies, that include field-induced negative offsets. A type-I type-II transition is evidenced near 2 T and a value of 15 20% of the bandgap energy difference is deduced for the valence-band offset. © 1990 The American Physical Society.
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收藏
页码:5891 / 5894
页数:4
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