Oscillating magnetoresistance in diluted magnetic semiconductor barrier structures

被引：12

作者：

Chang, K ^{[1
]}

Xia, JB

Peeters, FM

机构：

[1] Chinese Acad Sci, Inst Semicond, NLSM, Beijing 100083, Peoples R China

[2] Univ Instelling Antwerp, Dept Phys, B-2610 Antwerp, Belgium

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.65.115209

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ballistic spin polarized transport through diluted magnetic semiconductor single and double barrier structures is investigated theoretically using a two-component model. The tunneling magnetoresistance (TMR) of the system exhibits oscillating behavior when the magnetic field is varied. An interesting beat pattern in the TMR and spin polarization is found for different nonmagnetic semiconductor/diluted magnetic semiconductor double barrier structures which arises from an interplay between the spin-up and spin-down electron channels which are split by the s-d exchange interaction.

引用

页码：1152091 / 1152095

页数：5

共 29 条

[1] SPIN-FLIP SCATTERING TIMES IN SEMICONDUCTOR QUANTUM-WELLS [J].

BASTARD, G ;

FERREIRA, R .

SURFACE SCIENCE, 1992, 267 (1-3) :335-341

[2] TRANSITION FROM METALLIC TO TUNNELING REGIMES IN SUPERCONDUCTING MICRO-CONSTRICTIONS - EXCESS CURRENT, CHARGE IMBALANCE, AND SUPER-CURRENT CONVERSION [J].

BLONDER, GE ;

TINKHAM, M ;

KLAPWIJK, TM .

PHYSICAL REVIEW B, 1982, 25 (07) :4515-4532

[3] Spin polarized tunneling through diluted magnetic semiconductor barriers [J].

Chang, K ;

Peeters, FM .

SOLID STATE COMMUNICATIONS, 2001, 120 (5-6) :181-184

[4] OBSERVATION OF ABOVE-BARRIER TRANSITIONS IN SUPERLATTICES WITH SMALL MAGNETICALLY INDUCED BAND OFFSETS [J].

DAI, N ;

RAMMOHAN, LR ;

LUO, H ;

YANG, GL ;

ZHANG, FC ;

DOBROWOLSKA, M ;

FURDYNA, JK .

PHYSICAL REVIEW B, 1994, 50 (24) :18153-18166

[5] ELECTRONIC ANALOG OF THE ELECTROOPTIC MODULATOR [J].

DATTA, S ;

DAS, B .

APPLIED PHYSICS LETTERS, 1990, 56 (07) :665-667

[6] Spin-dependent perpendicular magnetotransport through a tunable ZnSe/Zn1-xMnxSe heterostructure:: A possible spin filter? [J].

Egues, JC .

PHYSICAL REVIEW LETTERS, 1998, 80 (20) :4578-4581

[7]

EGUES JC, CONDMAT0103442

[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] GIANT EXCITON FARADAY-ROTATION IN CD1-XMNXTE MIXED-CRYSTALS [J].

GAJ, JA ;

GATAZKA, RR ;

NAWROCKI, M .

SOLID STATE COMMUNICATIONS, 1978, 25 (03) :193-195

[10] Magneto-optic study of the interface in semimagnetic semiconductor heterostructures: Intrinsic effect and interface profile in CdTe-Cd1-xMnxTe [J].

Grieshaber, W ;

Haury, A ;

Cibert, J ;

dAubigne, YM ;

Wasiela, A ;

Gaj, JA .

PHYSICAL REVIEW B, 1996, 53 (08) :4891-4904

← 1 2 3 →