Magnetic Susceptibility and Electronic Specific Heat of Transition Metals and Alloys II. Pd Metal and Pd-Ag and Pd-Rh Alloys
Magnetic Susceptibility and Electronic Specific Heat of Transition Metals and Alloys II. Pd Metal and Pd-Ag and Pd-Rh Alloys
复制标题
过渡金属和合金的磁化率和电子比热II。
DOI：
10.1143/jpsj.18.240
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发表时间：
1963
影响因子：
1.7
通讯作者：
A. Katsuki
中科院分区：
文献类型：
--
作者：
M. Shimizu;Takeshi Takahashi;A. Katsuki
由实验数据推算出Pd的电子比热。利用Pd-Ag、Pd-Rh合金和Ru金属的低温比热数据，通过假定刚性带模型，确定了Pd的电子态密度，计算了Pd在任意温度下的电子比热和自旋顺磁磁化率。Pd的电子比热随温度变化的计算结果与实验结果吻合较好，而自旋顺磁磁化率的计算值比观测值要小得多。主要的差异将归因于分子场的影响。在80°K附近观测到的最大磁化率可以通过考虑一种特殊的带形来解释。对Pd-Ag和Pd-Rh合金进行了与Pd金属类似的计算。
Electronic specific heat of Pd is deduced from the experimental data. Using the density of electronic states of Pd which has been determined from the low temperature specific heat data of Pd–Ag and Pd–Rh alloys and Ru metal by assuming the rigid band model, the electronic specific heat and the spin paramagnetic susceptibility of Pd are calculated at arbitrary temperatures. The calculated result for the temperature dependence of the electronic specific heat of Pd satisfactorily agrees with the experimental result, whereas the calculated values for spin paramagnetic susceptibility are considerably smaller than the observed values. The main difference will be attributable to the effect of the molecular field. The maximum in observed magnetic susceptibility at about 80°K can be explained by considering a peculiar band shape. Similar calculations to those for Pd metal are performed for Pd–Ag and Pd–Rh alloys.