Neutron Scattering Study of a One-Dimensional Ising-Like Antiferromagnet CsCoCl3. I. Instantaneous Correlation
Neutron Scattering Study of a One-Dimensional Ising-Like Antiferromagnet CsCoCl3. I. Instantaneous Correlation
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一维类 Ising 反铁磁体 CsCoCl3 的中子散射研究。
DOI：
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发表时间：
1979
期刊：
影响因子：
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通讯作者：
K. Hirakawa
中科院分区：
文献类型：
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作者：
H. Yoshizawa;K. Hirakawa
用准弹性中子散射技术研究了CsCoCl 3的瞬时自旋关联（mathscr{S}（mbi{Q}）），观察到一维系统的类平面强度分布特征。在高于30 K的温度下，观察到的温度变化（mathscr{S}（mbi{Q}））与一维Ising反铁磁体的严格解符合得很好，|J|/ k =75 K。当温度降低时，在两个Neel点TN_1 = 21.3K和TN_2 = 9.2K处观察到了与先前模型一致的三维临界散射。
Instantaneous spin correlations (mathscr{S}(mbi{Q})) in CsCoCl 3 have been studied by means of quasi-elastic neutron scattering technique and well defined plane-like intensity distribution characteristic for 1D system has been observed. At temperatures higher than 30 K, the observed temperature variation of (mathscr{S}(mbi{Q})) is in good agreement with the rigorous solution for the 1D Ising antiferromagnet with | J |/ k =75 K. When the temperature is decreased, 3D critical scattering consistent with the previously worked model can be observed at two Neel points T N1 =21.3 K and T N2 =9.2 K.