Spin-sensitive bleaching and monopolar spin orientation in quantum wells

被引：54

作者：

Ganichev, SD ^{[1
]}

Danilov, SN

Bel'kov, VV

Ivchenko, EL

Bichler, M

Wegscheider, W

Weiss, D

Prettl, W

机构：

[1] Univ Regensburg, Inst Expt & Angew Phys, D-93040 Regensburg, Germany

[2] RAS, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

[3] Tech Univ Munich, Walter Schottky Inst, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.88.057401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Spin-sensitive bleaching of the absorption of far-infrared radiation has been observed in p-type GaAs/AlGaAs quantum well structures. The absorption of circularly polarized radiation saturates at lower intensities than that of linearly polarized light due to monopolar spin orientation in the first heavy-hole subband. Spin relaxation times of holes in p-type material in the range of tens of ps were derived from the intensity dependence of the absorption.

引用

页码：574011 / 574014

页数：4

共 32 条

[1] Exciton spin dynamics in GaAs quantum wells [J].

Adachi, S ;

Miyashita, T ;

Takeyama, S ;

Takagi, Y ;

Tackeuchi, A .

JOURNAL OF LUMINESCENCE, 1997, 72-4 :307-308

[2] CALCULATIONS OF HOLE SUBBANDS IN SEMICONDUCTOR QUANTUM WELLS AND SUPERLATTICES [J].

ALTARELLI, M ;

EKENBERG, U ;

FASOLINO, A .

PHYSICAL REVIEW B, 1985, 32 (08) :5138-5143

[3] EXCITON SPIN DYNAMICS IN GAAS HETEROSTRUCTURES [J].

BARAD, S ;

BARJOSEPH, I .

PHYSICAL REVIEW LETTERS, 1992, 68 (03) :349-352

[4] HOLE SPIN RELAXATION IN INTRINSIC QUANTUM-WELLS [J].

BAYLAC, B ;

MARIE, X ;

AMAND, T ;

BROUSSEAU, M ;

BARRAU, J ;

SHEKUN, Y .

SURFACE SCIENCE, 1995, 326 (1-2) :161-166

[5]

BEREGULIN EV, 1987, SOV PHYS SEMICOND+, V21, P615

[6]

BEREGULIN EV, 1982, SOV PHYS SEMICOND+, V16, P179

[7] SUBPICOSECOND SPIN RELAXATION DYNAMICS OF EXCITONS AND FREE-CARRIERS IN GAAS QUANTUM-WELLS [J].

DAMEN, TC ;

VINA, L ;

CUNNINGHAM, JE ;

SHAH, J ;

SHAM, LJ .

PHYSICAL REVIEW LETTERS, 1991, 67 (24) :3432-3435

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

DATTA, S ;

DAS, B .

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

[9] Universal quantum computation with the exchange interaction [J].

DiVincenzo, DP ;

Bacon, D ;

Kempe, J ;

Burkard, G ;

Whaley, KB .

NATURE, 2000, 408 (6810) :339-342

[10] Spin relaxation of conduction electrons [J].

Fabian, J ;

Das Sarma, S .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1999, 17 (04) :1708-1715

← 1 2 3 4 →