Observation of muonium in zeolites

被引：9

作者：

Arseneau, DJ

Fleming, DG

Fyfe, CA

Senba, M

机构：

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

[2] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada

[3] Dalhousie Univ, Dept Phys, Halifax, NS B3H 3J5, Canada

来源：

PHYSICA B-CONDENSED MATTER | 2003年 / 326卷 / 1-4期

关键词：

zeolite; muonium; polarization; relaxation;

D O I：

10.1016/S0921-4526(02)01576-4

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Muonium has been directly detected over a range of temperatures and fields by transverse field muSR in different zeolites: 3A, 13X, USY, ZSM-5, and S-115 (a high-silica form of ZSM-5), as well as in silica gel. The polarizations determined from data at 75 and 150 G were independent of both field and temperature. The amounts of Mu seen vary from similar to20% to 40%, with a large missing fraction seen in every case, which may be partly due to slow Mu formation. There is also a fast Mu relaxation rate seen in all samples. This is the first direct observation of Mu in zeolites. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：64 / 67

页数：4

共 13 条

[1]

BAERLOCHER C, 2001, ATLAS ZEOLITE STRUCT

[2]

Breck D. W., 1973, ZEOLITE MOL SIEVES

[3] Hyperfine and host-guest interactions of the Mu-cyclohexadienyl radical in NaY zeolite [J].