Enhanced magnetoresistance and spin-filter effects in magnetic heterostructures

被引:3
作者
Ferreira, MS [1 ]
Castro, JDE
Muniz, RB
Villeret, M
机构
[1] Univ Fed Fluminense, Dept Fis, Niteroi, RJ, Brazil
[2] City Univ London, Dept Math, London EC1V 0HB, England
关键词
D O I
10.1088/0953-8984/12/24/101
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
We show that ballistic transport through a pair of superlatticed magnetic junctions connected by a low-density-of-carriers conducting medium can provide an efficient spin filter and cause an enhanced magnetoresistive response.
引用
收藏
页码:L373 / L378
页数:6
相关论文
共 17 条
[1]   GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].
BAIBICH, MN ;
BROTO, JM ;
FERT, A ;
VANDAU, FN ;
PETROFF, F ;
EITENNE, P ;
CREUZET, G ;
FRIEDERICH, A ;
CHAZELAS, J .
PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475
[2]   ELECTRONIC ANALOG OF THE ELECTROOPTIC MODULATOR [J].
DATTA, S ;
DAS, B .
APPLIED PHYSICS LETTERS, 1990, 56 (07) :665-667
[3]   Real and realistic quantum computers [J].
DiVincenzo, DP .
NATURE, 1998, 393 (6681) :113-114
[4]   Enhanced magnetoresistance effect in layered systems [J].
Ferreira, MS ;
Castro, JAE ;
Muniz, RB ;
Villeret, M .
APPLIED PHYSICS LETTERS, 1999, 75 (15) :2307-2309
[5]   Spin filtering and an enhanced regime of giant magnetoresistance [J].
Ferreira, MS ;
Castro, JDE ;
Muniz, RB ;
Villeret, M .
JOURNAL OF PHYSICS-CONDENSED MATTER, 2000, 12 (12) :2833-2846
[6]   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
[7]   Spin-valve effects in a semiconductor field-effect transistor: A spintronic device [J].
Gardelis, S ;
Smith, CG ;
Barnes, CHW ;
Linfield, EH ;
Ritchie, DA .
PHYSICAL REVIEW B, 1999, 60 (11) :7764-7767
[8]   Observation of spin injection at a ferromagnet-semiconductor interface [J].
Hammar, PR ;
Bennett, BR ;
Yang, MJ ;
Johnson, M .
PHYSICAL REVIEW LETTERS, 1999, 83 (01) :203-206
[9]   A silicon-based nuclear spin quantum computer [J].
Kane, BE .
NATURE, 1998, 393 (6681) :133-137
[10]   Magnetization reversal and magnetoresistance in a lateral spin-injection device [J].
Lee, WY ;
Gardelis, S ;
Choi, BC ;
Xu, YB ;
Smith, CG ;
Barnes, CHW ;
Ritchie, DA ;
Linfield, EH ;
Bland, JAC .
JOURNAL OF APPLIED PHYSICS, 1999, 85 (09) :6682-6685