1. Key Laboratory of Magnetic Materials and
Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P. R. China
2. Zhejiang
Province Key Laboratory of Magnetic Materials and Application Technology,
Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang 315201, P. R. China
3. Institut des Sciences
Chimiques de Rennes, UMR 6226 INSA-Rennes, 20 avenue des buttes de Coësmes, 35708 Rennes, France