The Nuclear Magnetic Relaxation of an Exchange Enhanced Paramagnet: CoTi —Temperature-Induced Local Moment Behavior
The Nuclear Magnetic Relaxation of an Exchange Enhanced Paramagnet: CoTi —Temperature-Induced Local Moment Behavior
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交换增强顺磁体的核磁弛豫：CoTi — 温度诱发的局部力矩行为
DOI：
10.1143/jpsj.53.4117
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发表时间：
1984
影响因子：
1.7
通讯作者：
H. Yasuoka
中科院分区：
文献类型：
--
作者：
A. Shinogi;K. Endō;Y. Kitaoka;H. Yasuoka
cscl型CoTi在300 K以上的磁化率为居里-魏斯磁化率加温度无关项，即1637/(T +6.66)+3.92，单位为10 -4 emu/mol。在相同的温度范围内，59个Co核的弛豫速率的d自旋分量显示出低温Korringa过程的饱和。从d-自旋弛豫的分析中得出结论，温度相关的自旋密度波动的振幅在T * =300 K以上是饱和的，并且表现为局部矩的诱导。
The magnetic susceptibility of CsCl-type CoTi was expressed as the Curie-Weiss susceptibility plus temperature independent term at temperatures above about 300 K, i.e. 1637/( T +6.66)+3.92 in the unit of 10 -4 emu/mol. In the same temperature range, the d spin component of the relaxation rate associated with the 59 Co nuclei showed saturation from the low temperature Korringa process. From the analysis of the d-spin relaxation, it is concluded that the amplitudes of the temperature dependent spin density fluctuations are saturated above T * =300 K and behave as if local moments are induced.