MAGNETIC-FIELD-INDUCED SPIN-CONSERVING AND SPIN-FLIP INTERSUBBAND TRANSITIONS IN INAS QUANTUM-WELLS

被引：20

作者：

GAUER, C

WIXFORTH, A

KOTTHAUS, JP

KUBISA, M

ZAWADZKI, W

BRAR, B

KROEMER, H

机构：

[1] POLISH ACAD SCI, INST PHYS, PL-02668 WARSAW, POLAND

[2] UNIV MUNICH, SEKT PHYS, D-80539 MUNICH, GERMANY

[3] UNIV INNSBRUCK, INST EXPTL PHYS, A-6020 INNSBRUCK, AUSTRIA

[4] UNIV CALIF SANTA BARBARA, DEPT ELECT & COMP ENGN, SANTA BARBARA, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.74.2772

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Intersubband optical resonances in InAs/AlSb quantum wells have been studied in the Voigt configuration. Both spin-conserving and spin-flip transitions in the midinfrared spectral range were observed simultaneously. We demonstrate that the in-plane magnetic field mediates the spin-conserving transitions, whereas the bulk inversion asymmetry of InAs induces spin-flip excitations. The difference in the observed resonance energies allows us to deduce directly the depolarization shift. Moreover, we show that this depolarization strongly reduces the linewidth of the spin-conserving resonance. © 1995 The American Physical Society.

引用

页码：2772 / 2775

页数：4

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