Ground state of the geometrically frustrated compound Tb2Sn2O7

被引：21

作者：

Chapuis, Y. ^{[1
]}

Yaouanc, A.

de Reotier, P. Dalmas

Pouget, S.

Fouquet, P.

Cervellino, A.

Forget, A.

机构：

[1] CEA, DSM, Dept Rech Fondamentale Mat Condensee, F-38054 Grenoble, France

[2] Inst Max Von Laue Paul Langevin, F-38042 Grenoble 9, France

[3] ETH, Neutron Scattering Lab, CH-5232 Villigen, Switzerland

[4] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[5] CEA, DSM, Dept Rech Etat Condense, F-91191 Gif Sur Yvette, France

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2007年 / 19卷 / 44期

关键词：

D O I：

10.1088/0953-8984/19/44/446206

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Despite the observation of magnetic neutron reflections at low temperatures, muon-spin experiments have suggested the ground state of the geometrically frustrated magnetic material Tb2Sn2O7 to be dynamical. This unique situation requires additional characterizations of this magnetic ground state. Here we report a neutron spin-echo investigation which supports the existence of a dynamical component in the ground state. This result is backed by a thorough analysis of the diffraction profiles. A physical model is put forward in which the energy splitting between the ground and first excited states of the Tb3+ ion is comparable to other energies present in this frustrated system.

引用

页数：7

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