Experimental and first-principles study of ferromagnetism in Mn-doped zinc stannate nanowires

Experimental and first-principles study of ferromagnetism in Mn-doped zinc stannate nanowires

Experimental and first-principles study of ferromagnetism in Mn-doped zinc stannate nanowires
R. Deng, H. Zhou, Y.-F. Li, T. Wu, B. Yao, J.-M. Qin, Y.-C. Wan, D.-Y. Jiang, Q.-C. Liang, L. Liu
Journal of Applied Physics, Volume 114, Issue 3, Article number 033910, (2013)
R. Deng, H. Zhou, Y.-F. Li, T. Wu, B. Yao, J.-M. Qin, Y.-C. Wan, D.-Y. Jiang, Q.-C. Liang, L. Liu
Chemical vapor transport, Ferromagnetic coupling, First-principles calculation, First-principles study, Formation energies, Nearest neighbors, Room temperature ferromagnetism, Structural and magnetic properties
2013


Room temperature ferromagnetism was observed in Mn-doped zinc stannate (ZTO:Mn) nanowires, which were prepared by chemical vapor transport. Structural and magnetic properties and Mn chemical states of ZTO:Mn nanowires were investigated by X-ray diffraction, superconducting quantum interference device (SQUID) magnetometry and X-ray photoelectron spectroscopy. Manganese predominantly existed as Mn2+ and substituted for Zn (MnZn) in ZTO:Mn. This conclusion was supported by first-principles calculations. MnZn in ZTO:Mn had a lower formation energy than that of Mn substituted for Sn (MnSn). The nearest neighbor MnZn in ZTO stabilized ferromagnetic coupling. This observation supported the experimental results.




10.1063/1.4815884

00218979