High resolution β-NMR study of 8Li+ implanted in gold

被引：33

作者：

Parolin, T. J. ^{[1
]}

Salman, Z. ^{[2
]}

Chow, K. H. ^{[3
]}

Song, Q. ^{[4
]}

Valiani, J. ^{[1
]}

Saadaoui, H. ^{[4
]}

O'Halloran, A. ^{[2
]}

Hossain, M. D. ^{[4
]}

Keeler, T. A. ^{[4
]}

Kiefl, R. F. ^{[2
,4
,5
]}

Kreitzman, S. R. ^{[2
]}

Levy, C. D. P. ^{[2
]}

Miller, R. I. ^{[2
]}

Morris, G. D. ^{[2
]}

Pearson, M. R. ^{[2
]}

Smadella, M. ^{[4
]}

Wang, D. ^{[4
]}

Xu, M. ^{[2
]}

MacFarlane, W. A. ^{[1
]}

机构：

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

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

[3] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada

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

[5] Canadian Inst Adv Res, Toronto, ON M5G 1Z8, Canada

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.77.214107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the behavior of low energy (8)Li(+) implanted into gold as revealed by beta-detected NMR. At an external magnetic field of 3 T, two narrow resonances are observed, which are attributed to Li in the octahedral interstitial and the substitutional lattice sites. The Knight shifts for these two resonances are found to be temperature independent with values of +141(4) and +73(5) ppm, respectively. The spin-lattice relaxation rate in high magnetic fields at 290 K is slow, consistent with the Korringa relation; however, the rate increases dramatically for magnetic fields below about 2 mT. We attribute this to interaction of the (8)Li spin with the host lattice nuclear spins.

引用

页数：8

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