TEMPERATURE DEPENDENCES OF ELECTRICAL-RESISTIVITY IN MNP
TEMPERATURE DEPENDENCES OF ELECTRICAL-RESISTIVITY IN MNP
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DOI：
10.1143/jpsj.48.430
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发表时间：
1980-01-01
影响因子：
1.7
通讯作者：
KASUYA, T
中科院分区：
文献类型：
--
作者：
TAKASE, A;KASUYA, T
研究了MNP的螺杆相、铁磁相和扇相的电阻率与温度的关系。在螺杆相，a轴、b轴和c轴的电阻率在50K左右出现T2依赖关系，其系数分别为4.3、2.2和2.2×10−3μΩcm/deg2。在铁磁相和扇相中也观察到T2依赖关系，其系数分别为4.0和5.2×10−3μΩcm/deg2。不同磁相的T2依赖关系和系数的大小似乎表明，在低温下电子-电子散射占主导地位，费米面只由类d电子构成。这与以前的电子比热测量结果是一致的。
Temperature dependences of electrical resistivities in the screw-, ferromagnetic-and fan-phases of MnP have been studied. In the screw phase, T 2 dependences are observed in the a-, b-and c-axis resistivities up to about 50 K and the coefficients are 4.3, 2.2 and 2.2× 10− 3 μΩcm/deg 2, respectively. In the ferromagnetic-and fan-phases, too, the T 2 dependences are observed and the coefficients are 4.0 and 5.2× 10− 3 μΩcm/deg 2, respectively. The observation of the T 2 dependence in different magnetic phases and the large value of the coefficients seem to suggest that the electron-electron scattering is dominant at low temperature and the Fermi surfaces are constructed only with the d like electrons. This is consistent with the results of electronic specific heat measurements done before.