Electric-field-induced muonium formation in sapphire

被引：13

作者：

Brewer, JD

Brewer, JH ^{[1
]}

Morris, GD

Eshchenko, DG

Storchak, VG

机构：

[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada

[2] Simon Fraser Univ, Dept Math, Burnaby, BC V5A 1S6, Canada

[3] TRIUMF, Vancouver, BC V6T 2A3, Canada

[4] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[5] Russian Res Ctr, Kurchatov Inst, Moscow 123182, Russia

来源：

PHYSICA B | 2000年 / 289卷

关键词：

electric field; muonium formation; sapphire (Al2O3);

D O I：

10.1016/S0921-4526(00)00428-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An applied electric field E is known to affect the probability f(Mu) of muonium formation in sapphire (Al2O3). The (small) amplitude of the long-lived diamagnetic mu(+)SR signal is increased slightly by positive E (in the direction of the muon's initial momentum), implying a reduction off,, as expected for delayed muonium formation where electrons originate "behind" the muon. In contrast to this, the initial amplitude of the short-lived diamagnetic signal (visible directly only at low T) is dramatically decreased (implying enhanced muonium formation at very early times) by positive E. This effect is not yet understood. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：428 / 430

页数：3