Material aspects of spin injection in semiconductors

被引:9
作者
Borghs, G [1 ]
DeBoeck, J [1 ]
机构
[1] Imec, Dept Adv Components & Sensors Syst, Louvain, Belgium
来源
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2001年 / 84卷 / 1-2期
关键词
conductivity; spin scattering length; ferromagnetic metals;
D O I
10.1016/S0921-5107(01)00573-6
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The conductivity and spin scattering length of materials forming the ferromagnetic- semiconductor junction can reduce spin injection strongly when the difference is large. A ferromagnetic metal on top of a semiconductor is for that reason not necessarily the best choice and a magnetic semiconductor may be better. We will discuss the properties of GaMnAs as a possible candidate and we also present a ballistic injection device as an alternative solution. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:75 / 80
页数:6
相关论文
共 29 条
[1]  
DeBoeck J, 1996, APPL PHYS LETT, V68, P2744, DOI 10.1063/1.115584
[2]   MAGNETIC-PROPERTIES OF DILUTED MAGNETIC SEMICONDUCTORS [J].
DEJONGE, WJM ;
SWAGTEN, HJM .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1991, 100 (1-3) :322-345
[3]   Evaluation of vacuum bonded GaAs/Si spin-valve transistors [J].
Dessein, K ;
Boeve, H ;
Kumar, PSA ;
De Boeck, J ;
Lodder, JC ;
Delaey, L ;
Borghs, G .
JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :5155-5157
[4]  
DESSEIN K, J MAGN MAGN MAT
[5]  
DESSEIN K, 2000, P 29 ESDERC, V280
[6]   Zener model description of ferromagnetism in zinc-blende magnetic semiconductors [J].
Dietl, T ;
Ohno, H ;
Matsukura, F ;
Cibert, J ;
Ferrand, D .
SCIENCE, 2000, 287 (5455) :1019-1022
[7]   Free carrier-induced ferromagnetism in structures of diluted magnetic semiconductors [J].
Dietl, T ;
Haury, A ;
dAubigne, YM .
PHYSICAL REVIEW B, 1997, 55 (06) :R3347-R3350
[8]   Injection and detection of a spin-polarized current in a light-emitting diode [J].
Fiederling, R ;
Keim, M ;
Reuscher, G ;
Ossau, W ;
Schmidt, G ;
Waag, A ;
Molenkamp, LW .
NATURE, 1999, 402 (6763) :787-790
[9]  
FILIP AT, UNPUB
[10]  
JEDEMA FD, UNPUB NATURE