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Thermal conductivity and Lorenz number of the heavy electron in Ce compounds
Affiliation:1. Department of Advanced Materials Science, University of Tokyo, 5-1-5, Kashiwa, 277-8561 Chiba, Japan;2. RIKEN Center for Emergent Matter Science (CEMS), 2-1, Wako, 351-0198 Saitama, Japan;3. Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society (CROSS), 162-1, Tokai, 319-1106 Ibaraki, Japan;4. J-PARC Center, Japan Atomic Energy Agency, 2-4, Tokai, 319-1195 Ibaraki, Japan;5. Department of Engineering Science, University of Electro-Communications, 1-5-5, Chofu, 182-8585 Tokyo, Japan;1. College of Materials Science and Engineering, Shenzhen University, Nanhai Avenue 3688, Shenzhen, 518060, Guangdong, PR China;2. Department of Physics, Michigan Technological University, Houghton, MI, 49931, USA;1. Department of Physics, and CAS Key Laboratory of Strongly-coupled Quantum Matter Physics, University of Science and Technology of China, Hefei 230026, China;2. CAS Center for Excellence in Quantum Information and Quantum Physics, Hefei 230026, China;3. Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei 230601, China;4. Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Anhui University, Hefei 230601, China
Abstract:The thermal conductivity and the Lorenz number are investigated using the Anderson lattice model in the framework of the single-site approximation. The obtained results are qualitatively in agreement with the experimental findings of CeAl3. The characteristic features of the transport properties in the presence of a magnetic field are also discussed in connection with the gap structure above the Fermi level.
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