Experimental realization of a 2D fractional quantum spin liquid
Experimental realization of a 2D fractional quantum spin liquid
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DOI：
10.1103/physrevlett.86.1335
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发表时间：
2001-02-12
影响因子：
8.6
通讯作者：
Tylczynski, Z
中科院分区：
文献类型：
--
作者：
Coldea, R;Tennant, DA;Tylczynski, Z
利用强磁场中的中子散射研究了二维S = 1/2受抑海森堡反铁磁体Cs2 CuCl 4的基态有序和动力学.我们发现，动态关联显示出一个高度分散的连续激发态，共振价键态的特征，所产生的对S = 1/2自旋。激发能（1.65）和激发能（0.56）的量子重整化因子很大。
The ground-state ordering and dynamics of the two-dimensional S = 1/2 frustrated Heisenberg antiferromagnet Cs2CuCl4 are explored using neutron scattering in high magnetic fields. We find that the dynamic correlations show a highly dispersive continuum of excited states, characteristic of the resonating valence bond state, arising from pairs of S = 1/2 spinons. Quantum renormalization factors for the excitation energies (1.65) and incommensuration (0.56) are large.