Quadrupolar split 8Li β-NMR in SrTiO3

被引：22
|
作者：
MacFarlane, WA
Morris, GD
Chow, KH
Baartman, RA
Daviel, S
Dunsiger, SR
Hatakeyama, A
Kreitzman, SR
Levy, CDP
Miller, RI
Nichol, KM
Poutissou, R
Dumont, E
Greene, LH
Kiefl, RF
机构：
[1] TRIUMF, Vancouver, BC V6T 2A3, Canada
[2] Univ British Columbia, Dept Chem, Vancouver, BC V5Z 1M9, Canada
[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[4] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada
[5] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V5Z 1M9, Canada
[6] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
来源：
PHYSICA B-CONDENSED MATTER | 2003年 / 326卷 / 1-4期
关键词：
beta-NMR; SrTiO3; quadrupolar splitting;
D O I：
10.1016/S0921-4526(02)01603-4
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We have measured the temperature dependence of the beta-NMR resonances of Li-8(+) implanted in the top few thousand Angstrom of a crystal of SrTiO3 in a magnetic field of 3 Tparallel to < 100 >. A well-resolved quadrupolar splitting of the resonance is observed indicating a noncubic Li site with < 1 0 0 > symmetry and a quadrupolar frequency nu(Q)(211 K) = 153.2(4) kHz. The cubic-to-tetragonal phase transition is reflected in the linewidths demonstrating that beta-NMR is a sensitive probe of the structure near a surface. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：209 / 212
页数：4
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