Antiferromagnetic ordering and metamagnetism in PrCuSi |
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Authors: | A M Strydom |
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Institution: | (1) College of Physics Science and Technology, Shenyang Normal University, 253 Huanghe North Street, Huanggu District, 110034 Shenyang, China;(2) Shenyang National Laboratory for Materials Science, Institute of Metal Research, and International Centre for Materials Physics, Chinese Academy of Sciences, 72 Wenhua Road, 110016 Shenyang, People’s Republic of China |
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Abstract: | A variety of physical properties measured on the hexagonal rare-earth intermetallic compound PrCuSi are presented. We provide
compelling evidence for antiferromagnetic ordering at TN = 5.1 K in this compound, in contrast to the former claim of ferromagnetic ordering at 14 K. The antiferromagnetic order
is, however, found to be unstable in applied magnetic fields, becoming ferromagnetic beyond a metamagnetic transition at a
field of 0.7 T at 2 K. It is argued that the magnetism in PrCuSi has the ingredients of a tricritical phase transition at
the intersection of paramagnetism, ferromagnetism, and antiferromagnetism. |
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Keywords: | |
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