Tetragonal distortion in Tb2Ti2O7 seen by neutron scattering

被引：23

作者：

Rule, K. C. ^{[1
]}

Bonville, P. ^{[2
]}

机构：

[1] Helmholtz Zentrum Berlin Mat & Energie, D-14109 Berlin, Germany

[2] CEA, DSM Serv Phys Etat Condense, CE Saclay, F-91191 Gif Sur Yvette, France

来源：

HIGHLY FRUSTRATED MAGNETISM 2008 (HFM 2008) | 2009年 / 145卷

关键词：

FRUSTRATED PYROCHLORE ANTIFERROMAGNET;

D O I：

10.1088/1742-6596/145/1/012027

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Inelastic neutron spectra performed at 0.4 K in a single crystal of Tb2Ti2O7, with a magnetic field applied along the [110] direction, confirm the presence of a tetragonal lattice distortion from the nominal cubic symmetry, previously evidenced below 20 K in high resolution x-ray experiments. The signature of the distortion is an inelastic line at very low energy(similar or equal to 0.04 THz),which is also present in the powder inelastic neutron spectra of Tb2Sn2O7.

引用

页数：4