Spin pseudogap in the S = 1 2 chain material Sr 2 CuO 3 with impurities
Spin pseudogap in the S = 1 2 chain material Sr 2 CuO 3 with impurities
复制标题
S=1 2 链状材料中的自旋赝能隙Sr 2 CuO 3 含有杂质
DOI：
10.1103/physrevb.95.054409
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发表时间：
2017
影响因子：
3.7
通讯作者：
A. Zheludev
中科院分区：
文献类型：
--
作者：
G. Simutis;S. Gvasaliya;N. S. Beesetty;T. Yoshida;J. Robert;S. Petit;A. I. Kolesnikov;M. B. Stone;F. Bourdarot;H. C. Walker;D. T. Adroja;O. Sobolev;C. Hess;T. Masuda;A. Revcolevschi;B. Büchner;A. Zheludev
用中子谱研究了含Ni、Ca杂质的海森堡反铁磁链体系的低能磁激发谱。在所有情况下，缺陷诱导的光谱伪隙都被观察到，并且显示出与自旋链中的散射中心的数量成比例的比例。
The low-energy magnetic excitation spectrum of the Heisenberg antiferromagneticchain systemwith Ni and Ca impurities is studied by neutron spectroscopy. In all cases, a defect-induced spectral pseudogap is observed and shown to scale proportionately to the number of scattering centers in the spin chains.