NON-LINEAR JAHN-TELLER COUPLING AND LOCAL DYNAMICS OF SRTIO3-CR5+ NEAR THE STRUCTURAL PHASE-TRANSITION POINT

被引：16

作者：

GLASBEEK, M

DEJONG, HJ

KOOPMANS, WE

机构：

[1] Laboratory for Physical Chemistry, University of Amsterdam, Amsterdam

来源：

CHEMICAL PHYSICS LETTERS | 1979年 / 66卷 / 01期

关键词：

D O I：

10.1016/0009-2614(79)80396-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Orthorhombic distortions, as proposed for T × (ε{lunate}g + τ2g) Jahn-Teller systems with strong non-linear couplings, are reported for the local environment of Cr5+ in SrTiO3 well below Tc. Reorientational averaging effects are observed in EPR as T → T- c. The data are understood by relating the g-anisotropy to the behavior of the intrinsic strain as the softening of the displacive mode is increased. © 1979.

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页码：203 / 206

页数：4

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