Localization of muonium atoms in KCl at low temperature

被引：0
|
作者：
Storchak, Vyacheslav G. [1 ]
Brewer, Jess H. [2 ]
Eshchenko, Dmitry G. [3 ]
Cottrell, Stephen P. [4 ]
Russo, Peter L. [2 ]
Stubbs, Scott L. [2 ]
机构：
[1] Natl Res Ctr Kurchatov Inst, Moscow 123182, Russia
[2] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
[3] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland
[4] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England
来源：
EPL | 2011年 / 94卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
BAND-LIKE PROPAGATION; QUANTUM DIFFUSION; SOLIDS; CRYSTALS;
D O I：
10.1209/0295-5075/94/26001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Muonium (mu(+)e(-) or Mu) atoms have long been believed to exhibit band-like propagation at low temperatures in ionic insulators and semiconductors. However, new muon spin relaxation measurements in transverse magnetic field reveal strong localization of Mu atoms at low temperatures in the ionic insulator KCl, similar to that observed in van der Waals cryocrystals. This discrepancy with previous results challenges our understanding of muonium quantum dynamics in solids: can Mu atoms ever truly delocalize at low temperature, or is low-temperature Mu localization a universal phenomenon? Copyright (C) EPLA, 2011
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页数：5
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