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Crossover from weak to strong Kondo behaviour in CeAl2
Affiliation:1. Department of Chemistry, Moscow State University, Leninskie Gory, House 1, Building 3, GSP-2, Moscow 119991, Russia;2. Faculty of Materials Science, Moscow State University, Leninskie Gory, House 1, Building 73, GSP-1, Moscow 119991, Russia;3. Department of Petrology, Geological Faculty Moscow State University, Leninskie Gory, Moscow 119992, Russia;4. Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario, Canada L8S 4M1;5. Jiangsu Key Laboratory of Micro and Nano Heat Fluid Flow Technology and Energy Application, School of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou 215009, China;6. Indian Institute of Technology Madras, Chennai 600036, India;7. Departamento de Física, Universidade Federal do Rio Grande do Norte, Natal 59082-970, Brazil;1. MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, PR China;2. College of Sciences, Chongqing University of Posts and Telecommunications, Chongqing 400065, PR China;3. Institute of Physics, University of Tartu, Ravila 14C, Tartu 50411, Estonia;4. Faculty of Applied Sciences, Delft University of Technology, Mekelweg 15, 2629 JB Delft, The Netherlands;5. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, PR China;1. MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou 510275, China;2. Beijing Synchrotron Radiation Facility, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China;1. College of Physics, Qingdao University, Qingdao 266071, China;2. National Demonstration Center for Experiment Applied Physics Education (Qingdao University), Qingdao 266071, China;3. Shandong Provincial University Key Laboratory of Optoelectrical Material Physics and Devices, Qingdao 266071, China
Abstract:High pressure electrical resistance experiments performed on a single crystal of CeAl2 allow one to determine a characteristic line in the pressure-temperature plane where a continuous passage from weak to strong Kondo behaviour is observed. This line is not associated with any sizeable volume anomaly as shown by X-ray experiments.
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