Muon tunneling along a ring-shaped orbit in UNi2Al3

被引：5

作者：

Amato, A

Andreica, D

Gygax, FN

Pinkpank, M

Sato, NK

Schenck, A

Solt, G ^{[1
]}

机构：

[1] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[2] ETH Zurich, Inst Particle Phys, CH-5232 Villigen, Switzerland

[3] Tohoku Univ, Grad Sch Sci, Dept Phys, Sendai, Miyagi 9808578, Japan

来源：

PHYSICA B | 2000年 / 289卷

关键词：

tunneling state; muon site; field gradient; actinide compounds;

D O I：

10.1016/S0921-4526(00)00432-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The wave function of the implanted mu(+) in UNi2Al3 is found to be extended over a hexagonal ring of interstitial lattice sites m or k, closely surrounding the highly symmetrical site b. This site assignment, inferred from the angular dependence of high-field relaxation rates, leads to an equally consistent explanation of the medium- and low-field mu SR data. By using available NMR data for the inherent 'crystal' electric field gradient (EFG), the mu(+)-induced EFG at the Al nuclei could be determined. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：447 / 450

页数：4