Magnetic Transition in α-NaCuPO4 with Cu-O Chains
Physics, Chemistry, Mechanics
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.
Published in AIP Advances, Volume 2, Issue 3, 2012, pages 032172-1-032172-6.
© 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.