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Single-crystal Study on the Low-temperature Magnetism of the Pyrochlore Magnet Pr2Zr2O7
Kenta Kimura,Satoru Nakatsuji,A. Agung Nugroho 한국물리학회 2013 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.63 No.3
A single-crystal study on the low-temperature magnetism of a pyrochlore magnet Pr2Zr2O7 hasbeen carried out. The temperature dependence of the magnetic susceptibility shows no magneticordering at temperatures down to 1.9 K. The Curie-Weiss behavior was observed at temperaturesbelow 10 K, yielding an effective moment µeff = 2.5µB. This result, combined with those of recentreports on other Pr3+ pyrochlore magnets, suggests that the ground state of the Pr3+ crystal electricfield is a well-separated magnetic doublet. An anisotropic magnetization process is observed at lowertemperatures, and the saturated magnetization values along the three high-symmetry directions areconsistent with a local h111i Ising anisotropy with a magnetic moment gJJ = µeff = 2.5µB.