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

页码：209 / 212

页数：4

共 9 条

[1] DIRECTLY DETECTED NUCLEAR-MAGNETIC-RESONANCE OF OPTICALLY PUMPED GAAS QUANTUM-WELLS [J].