Near-surface structural phase transition of SrTiO3 studied with zero-field β-detected nuclear spin relaxation and resonance

被引：80

作者：

Salman, Z

Kiefl, RF

Chow, KH

Hossain, MD

Keeler, TA

Kreitzman, SR

Levy, CDP

Miller, RI

Parolin, TJ

Pearson, MR

Saadaoui, H

Schultz, JD

Smadella, M

Wang, D

MacFarlane, WA

机构：

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

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

[3] Univ Alberta, Dept Phys, Edmonton, AB B6G 2J1, Canada

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

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.96.147601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that zero-field beta-detected nuclear quadrupole resonance and spin relaxation of low energy Li-8 can be used as a sensitive local probe of structural phase transitions near a surface. We find that the transition near the surface of a SrTiO3 single crystal occurs at T-c similar to 150 K, i.e., similar to 45 K higher than T-c(bulk), and that the tetragonal domains formed below T-c are randomly oriented.

引用

页数：4

共 25 条

[1] SURFACE EFFECTS ON MAGNETIC PHASE-TRANSITIONS [J].