β-NMR of isolated 8Li+ implanted into a thin copper film

被引：33

作者：

Salman, Z.

Mansour, A. I.

Chow, K. H.

Beaudoin, M.

Fan, I.

Jung, J.

Keeler, T. A.

Kiefl, R. F.

Levy, C. D. P.

Ma, R. C.

Morris, G. D.

Parolin, T. J.

Wang, D.

MacFarlane, W. A.

机构：

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

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

[3] Univ British Columbia, Adv Mat & Proc Engn Lab, Vancouver, BC V6T 1Z4, Canada

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

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

[6] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z3, Canada

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.75.073405

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Depth-controlled beta-NMR was used to study highly spin-polarized Li-8(+) in a Cu film of thickness 100 nm deposited onto a MgO substrate. The positive Knight shifts and spin relaxation data show that Li-8(+) occupies two sites at low temperatures, assigned to be the substitutional (S) and octahedral (O) interstitial sites. Between 50 and 150 K, there is a site change from O to S. The temperature dependence of the Knight shifts and spin-lattice relaxation rates at high temperatures, i.e., when all the Li are in the S site, is consistent with the Korringa law for a simple metal.

引用

页数：4

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