Magnetic Transition in α-NaCuPO4 with Cu-O Chains

Author(s)

Y. Wu
X. L. Dong
H. X. Yang
X. J. Wang
X. J. Huang
J. Q. Li
F. Zhou
X. J. Zhou
Z. X. Zhao

Document Type

Article

Subject Area(s)

Physics, Chemistry, Mechanics

Abstract

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.

Publication Info

Published in AIP Advances, Volume 2, Issue 3, 2012, pages 032172-1-032172-6.

Rights

© AIP Advances, 2012, AIP Publishing

Wu, Y., Dong, X.L., Yang, H.X., Wang, X.J., Huang, X.J., Li, J.Q., Zhou, X.J., Zhao, Z.X. (2012). Magnetic Transition in α-NaCuPO4 with Cu-O Chains. AIP Advances, 2(3), 032172-1-032172-6.

http://dx.doi.org/10.1063/1.4754582