Extremely long electron spin coherence induced by a trion transition in ZnSe/BeTe type-II quantum wells

被引：0

作者：

Mino, H. ^{[1
]}

Kouno, Y. ^{[1
]}

Oto, K. ^{[1
]}

Muro, K. ^{[1
]}

Akimoto, R. ^{[2
]}

Takeyama, S. ^{[3
]}

机构：

[1] Chiba Univ, Grad Sch Sci, Chiba 2638522, Japan

[2] AIST, Ultrafast Photon Dev Lab, Tsukuba, Ibaraki 3058568, Japan

[3] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

来源：

PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 6, NO 1 | 2009年 / 6卷 / 01期

关键词：

D O I：

10.1002/pssc.200879870

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The spin coherence of photoexcited electrons in non-doped ZnSe/BeTe type-II quantum wells was investigated by a time-resolved Kerr rotation (TRKR) technique using resonant excitation of either excitons or negatively charged excitons (trions) in magnetic fields at 1.4 K. The TRKR signal arising from the Lamor precession of photo-excited electron spins in ZnSe layers was observed and enhanced at the trion resonance, where the spin relaxation time reached up to several nanoseconds. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：272 / +

页数：2

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