Spin-polarized Zener tunneling in (Ga,Mn)As

被引：98

作者：

Johnston-Halperin, E ^{[1
]}

Lofgreen, D

Kawakami, RK

Young, DK

Coldren, L

Gossard, AC

Awschalom, DD

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA

[3] Univ Calif Santa Barbara, Dept Mat Sci, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.65.041306

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate spin-polarized inter-band tunneling through measurement of a (Ga,Mn)As based Zener tunnel diode. By placing the diode under reverse bias, electron spin polarization is transferred from the valence band of p-type (Ga,Mn)As to the conduction band of an adjacent n-GaAs layer. The resulting current is monitored by injection into a quantum well light emitting diode whose electroluminescence polarization is found to track the magnetization of the (Ga,Mn)As layer as a function of both temperature and magnetic field.

引用

页码：1 / 4

页数：4

共 24 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] Magnetic circular dichroism studies of carrier-induced ferromagnetism in (Ga1-xMnx)As [J].

Beschoten, B ;

Crowell, PA ;

Malajovich, I ;

Awschalom, DD ;

Matsukura, F ;

Shen, A ;

Ohno, H .

PHYSICAL REVIEW LETTERS, 1999, 83 (15) :3073-3076

[3] Optical spin resonance and transverse spin relaxation in magnetic semiconductor quantum wells [J].

Crooker, SA ;

Awschalom, DD ;

Baumberg, JJ ;

Flack, F ;

Samarth, N .

PHYSICAL REVIEW B, 1997, 56 (12) :7574-7588

[4] Carrier-induced ferromagnetism in p-Zn1-xMnxTe -: art. no. 085201 [J].

Ferrand, D ;

Cibert, J ;

Wasiela, A ;

Bourgognon, C ;

Tatarenko, S ;

Fishman, G ;

Andrearczyk, T ;

Jaroszynski, J ;

Kolesnik, S ;

Dietl, T ;

Barbara, B ;

Dufeu, D .

PHYSICAL REVIEW B, 2001, 63 (08)

[5] 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

[6]

Hagele D, 1998, APPL PHYS LETT, V73, P1580, DOI 10.1063/1.122210

[7] Epitaxy and magnetotransport properties of the diluted magnetic semiconductor p-Be(1-x)MnxTe [J].

Hansen, L ;

Ferrand, D ;

Richter, G ;

Thierley, M ;

Hock, V ;

Schwarz, N ;

Reuscher, G ;

Schmidt, G ;

Molenkamp, LW ;

Waag, A .

APPLIED PHYSICS LETTERS, 2001, 79 (19) :3125-3127

[8] (Ga,Mn)As as a digital ferromagnetic heterostructure [J].

Kawakami, RK ;

Johnston-Halperin, E ;

Chen, LF ;

Hanson, M ;

Guébels, N ;

Speck, JS ;

Gossard, AC ;

Awschalom, AA .

APPLIED PHYSICS LETTERS, 2000, 77 (15) :2379-2381

[9] Resonant spin amplification in n-type GaAs [J].

Kikkawa, JM ;

Awschalom, DD .

PHYSICAL REVIEW LETTERS, 1998, 80 (19) :4313-4316

[10] A spin Esaki diode [J].

Kohda, M ;

Ohno, Y ;

Takamura, K ;

Matsukura, F ;

Ohno, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 2001, 40 (12A) :L1274-L1276

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