Abstract
We investigated the magnetic specific heat and entropy of a CuO single crystal in the wide temperature range from 1·5 K to 1000 K and determined the anisotropy of its magnetic susceptibility below 300 K. CuO behaves like an anisotropic low-dimensional antiferromagnet. The magnetization discontinuity is most clearly visible atT N2=214 K for fields in theb-c plane. The measured magnetic entropy at 1000 K,S m(1000)=5·67 J/mol K, approaches the expected value ofS m=Rln2=5·76 J/mol K.
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Barron T H K, Berg W T and Morrison J A 1957Proc. R. Soc. A242 478
Blöte H W 1974Physica 78 302
Brill W and Gmelin E 1987J. Therm. Anals. 33 365
Forsyth J B, Brown P J and Wanklyn B M 1988J. Phys. C21 2919
Gmelin E, Brill W and Chattopadhyay T 1990Thermochim. Acta (accepted)
de Jongh L J and Miedema A R 1974Adv. Phys. 23 1
Junod A, Eckert D, Triscone J, Müller J and Reichardt W 1989J. Phys. Condens. Matter C1 8021
Katsura S 1962Phys. Rev. 127 1508
Klaaijsen F W, den Adel H, Dokoupil Z and Huiskamp W J 1975Physica B79 113
Loram J W, Mirza K A, Joyce C and Osborne J 1989Europhys. Lett. 8 263
O’Keefe M and Stone F S 1962J. Phys. Chem. Solids 23 261
Parkin S S P, Engler E M, Lee V Y and Beyers R B 1988Phys. Rev. B37 131
Szeto K Y private communication at this conference
Yang B X, Thurston T B, Transquada J M and Shirane G 1989Phys. Rev. Lett. 39 4343
Wanklyn B M and Garrard B J 1985J. Mater. Sci. Lett. 2 285
Wöhler L and Jochum N 1933Z. Phys. Chem. A167 169
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Gmelin, E., Köbler, U., Brill, W. et al. Magnetic specific heat and susceptibility of cupric oxide (CuO) single crystals. Bull. Mater. Sci. 14, 117–123 (1991). https://doi.org/10.1007/BF02747301
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DOI: https://doi.org/10.1007/BF02747301