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Irreversibility and Thermoremanent Magnetization in Y0.8Sr0.2MnO3

Journal of Magnetics, Volume 17, Number 3, 30 Sep 2012, Pages 168-171
Agustina Ismail (Department of Physics, Hankuk University of Foreign Studies), W. Yansen (Department of Physics, Hankuk University of Foreign Studies), R. Rajagukguk (Department of Physics, Hankuk University of Foreign Studies), Y. M. Kwon (Department of Physics, Hankuk University of Foreign Studies), J. Kim (Department of Physics, Hankuk University of Foreign Studies), B. W. Lee * (Department of Physics, Hankuk University of Foreign Studies)
Abstract

Irreversible magnetization between the zero-field-cooled (ZFC) and field-cooled (FC) states in Y1-xSrxMnO3 (x=0 and 0.2) was investigated. YMnO3 and Y0.8Sr0.2MnO3 have a hexagonal structure and the lattice parameter a decreases from 7.4408 Å to 7.4327 Å while c increases from 12.2244 Å to 12.2287 Å for YMnO3 and Y0.8Sr0.2MnO3, respectively. An anomaly is observed at around 74 K in ZFC and FC magnetization measurements for YMnO3, whereas in Y0.8Sr0.2MnO3 the σZFC and σFC are split at low temperature, indicating glass-like behavior.

 

Keywords: anisotropy field; glass behavior; irreversibility magnetization; thermoremanent magnetization
DOI: http://dx.doi.org/10.4283/JMAG.2012.17.3.168
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