Neutron scattering from deconfined spinons in the 2D frustrated quantum magnet Cs2CuCl4

被引：2
|
作者：
Coldea, R.
Tennant, D. A.
Tylczynski, Z.
机构：
[1] Univ Oxford, Clarendon Lab, Oxford OX1 3PU, England
[2] Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA
[3] Rutherford Appleton Lab, ISIS Facil, Didcot OX11 0QX, Oxon, England
[4] Adam Mickiewicz Univ Poznan, Inst Phys, PL-61614 Poznan, Poland
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷
关键词：
spinons; resonating-valence-bond spin liquid; anisotropic triangular antiferromagnet; Cs2CuCl4;
D O I：
10.1016/j.jmmm.2004.01.055
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
High-resolution inelastic neutron scattering is used to explore the magnetic excitations in Cs2CuCl4; a quasi-2D spin-1/2 frustrated Heisenberg antiferromagnet on an anisotropic triangular lattice. In the spin liquid phase above the 3D ordering transition a broad continuum of excited states is observed, characteristic of excitations of pairs of spin-1/2 spinons of a resonating-valence-bond state. In the ordered phase stabilized at low temperatures by the weak inter-layer couplings a sharp spin-wave mode emerges below the continuum lower boundary. (C) 2004 Published by Elsevier B.V.
引用
收藏
页码：E649 / E650
页数：2
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