Direct observation of the high magnetic field effect on the Jahn-Teller state in TbVO4

被引：21

作者：

Detlefs, C. ^{[1
]}

Duc, F. ^{[2
]}

Kazei, Z. A. ^{[3
]}

Vanacken, J. ^{[4
]}

Frings, P. ^{[2
]}

Bras, W. ^{[5
]}

Lorenzo, J. E. ^{[6
]}

Canfield, P. C. ^{[7
]}

Rikken, G. L. J. A. ^{[2
]}

机构：

[1] European Synchrotron Radiat Facil, F-38043 Grenoble, France

[2] Univ Toulouse, CNRS INSA UPS, Lab Natl Champs Magnet Pulses, F-31400 Toulouse, France

[3] Moscow State Pedag Univ, Moscow 119992, Russia

[4] Inst Nanoscale Phys & Chem, Pulsveldengroep, B-3001 Louvain, Belgium

[5] DUBBLE CRG ESRF, Netherlands Org Sci Res NWO, F-38043 Grenoble, France

[6] CNRS, Inst Neel, F-38043 Grenoble, France

[7] Iowa State Univ Sci & Technol, USDOE & Dept Phys & Astron, Ames Lab, Ames, IA 50011 USA

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.100.056405

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first direct observation of the influence of high magnetic fields on the Jahn-Teller (JT) transition in TbVO(4). Contrary to spectroscopic and magnetic methods, x-ray diffraction directly measures the JT distortion; the splitting between the (311)/(131) and (202)/(022) pairs of Bragg reflections is proportional to the order parameter. Our experimental results are compared to mean-field calculations, taking into account all possible orientations of the grains relative to the applied field, and qualitative agreement is obtained.

引用

页数：4

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