A thermodynamic study of the magnetic phase transitions of NiBr2

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, , Citation M A White and L A K Staveley 1982 J. Phys. C: Solid State Phys. 15 L169 DOI 10.1088/0022-3719/15/7/002

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1 Inorganic Chem. Lab., Oxford Univ., Oxford, UK

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0022-3719/15/7/L169

Abstract

The heat capacity of NiBr2 has been measured for 8K<or=T<or=K. Two features of magnetic origin are prominent: a broad feature at T approximately 46K and a spike at T=19.5K, respectively corresponding to the Neel temperature and to the transition to an incommensurate structure. The results are compared with recent theoretical predictions for the low-temperature magnetic heat capacity.

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