Transition from orbital liquid to Jahn-Teller insulator in orthorhombic perovskites RTiO3

被引：58

作者：

Cheng, J. -G. ^{[1
,2
]}

Sui, Y. ^{[1
,2
]}

Zhou, J. -S. ^{[1
,2
]}

Goodenough, J. B. ^{[2
]}

Su, W. H. ^{[1
]}

机构：

[1] Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Dept Phys, Harbin 150001, Peoples R China

[2] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.101.087205

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Following the same strategy used for RVO(3), thermal conductivity measurements have been made on a series of single-crystal perovskites RTiO(3) (R=La,Nd,...,Yb). Results reveal explicitly a transition from an orbital liquid to an orbitally ordered phase at a magnetic transition temperature, which is common for both the antiferromagnetic and ferromagnetic phases in the phase diagram of RTiO(3). This spin/orbital transition is consistent with the mode softening at T(N) in antiferromagnetic LaTiO(3) and is supported by an anomalous critical behavior at T(c) in ferromagnetic YTiO(3).

引用

页数：4

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