期刊
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
卷 81, 期 4, 页码 -出版社
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.81.044707
关键词
CexLa1-xRu2Si2; transport properties; Kondo effect; RKKY interaction
资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan [19204034, 20102002]
- Global COE program Weaving Science Web beyond Particle-matter Hierarchy
- Japan Society for the Promotion of Science
- Grants-in-Aid for Scientific Research [23654109, 19204034, 20102002, 22340088] Funding Source: KAKEN
We have performed an extensive study on the electronic transport properties of CexLa1-xRu2Si2. At zero field or under the fields parallel to the hard axis of magnetization, the residual resistivity, magnetoresistivity and Hall resistivity are found to be most enhanced around x = 0.85 in the antiferromagnetic state. On the other hand, the high magnetic field along the easy axis is effective to suppress the enhancement. The coherence temperature derived from the temperature variation of Hall coefficient becomes equal to the antiferromagnetic transition temperature at x = 0.85, indicating that the competition between the coherence of the Kondo singlet and the long range magnetic order is responsible for the enhancement. The competition is likely to affect also the magnetic properties in the antiferromagnetic state. The comparison with the de Haas-van Alphen effect measurements suggests that the enhancement is likely to be due to the increase in scattering. The present results are compared with the theory by Hattori and Miyake.
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