Nuclear spin relaxation/resonance of 8Li in Al

被引：3
|
作者：
Wang, D. [1 ]
Salman, Z. [2 ,3 ]
Chow, K. H. [4 ]
Fan, I. [4 ]
Hossain, M. D. [1 ]
Keeler, T. A. [1 ]
Kiefl, R. F. [1 ,5 ,6 ]
Levy, C. D. P. [5 ]
Mansour, A. I. [4 ]
Morris, G. D. [5 ]
Pearson, M. R. [5 ]
Parolin, T. J. [7 ]
Saadaoui, H. [1 ]
Smadella, M. [1 ]
Song, Q. [1 ]
MacFarlane, W. A. [7 ]
机构：
[1] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
[2] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England
[3] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England
[4] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada
[5] TRIUMF, Vancouver, BC V6T 2A3, Canada
[6] Canadian Inst Adv Res, Vancouver, BC, Canada
[7] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z3, Canada
来源：
PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 5-7期
关键词：
beta-NMR; Li-8; Metals; Spin relaxation; BETA-NMR; DIFFUSION; FILMS;
D O I：
10.1016/j.physb.2008.11.136
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
A low energy beam of spin polarized Li-8 has been used to study the behaviour of isolated Li-8 implanted into a 150 nm thick film of Al on an MgO substrate. The spin relaxation rate 1/T-1 and beta-NMR lineshape were measured as a function of temperature in a large magnetic field of 4.1 T. The resonances from different sites are unresolved due to the large nuclear dipolar interaction with the host Al-27 magnetic dipole moments. Nevertheless the temperature variation of the site averaged 1/T-1 and Knight shift show evidence for a transition between the octahedral O and substitutional S sites at about 150 K, as observed in other fcc metals. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：920 / 923
页数：4
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