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Magnetic transition in α-NaCuPO4 with Cu-O chains
Author(s) -
Yuying Wu,
Xiang Dong,
Huaixin Yang,
Xijie Wang,
Xuejie Huang,
J. Q. Li,
Feng Zhou,
Xingjiang Zhou,
Z. X. Zhao
Publication year - 2012
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4754582
Subject(s) - magnetization , condensed matter physics , ferromagnetism , curie–weiss law , curie temperature , magnetic moment , curse of dimensionality , materials science , magnetic field , magnetic susceptibility , curie's law , physics , quantum mechanics , machine learning , computer science
The magnetic properties and specific heat have been studied on α-NaCuPO4, an analog of ion-battery material LiFePO4. A ferromagnetic-like transition at 23 K was observed for the first time by the isofield magnetization measurement and confirmed by isothermal magnetization below 23 K. The compound obeys Curie-Weiss law with an antiferromagentic coupling feature. A canted antiferromagentism was suggested to account for the ferromagnetic-like transition. The contribution from the orbital magnetic moment is found to be non-ignorable. Furthermore, specific heat shows that the magnetic transition is broadened and the critical temperature is enhanced under magnetic field, revealing a low dimensionality feature

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