Abnormal room temperature ferromagnetism in CuO-ZnO heterostructures: interface related or not?

作者信息

Gao Daqiang, Zhang Zhipeng, Li You, Xia Baorui, Shi Shoupeng, Xue Desheng

机构信息

Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Key Laboratory of Special Function Materials and Structure Design, Ministry of Education, Lanzhou University, Lanzhou 730000, P. R. China.

出版信息

Chem Commun (Camb). 2015 Jan 21;51(6):1151-3. doi: 10.1039/c4cc08485c.

DOI:10.1039/c4cc08485c

PMID:25470613

Abstract

We report the new functionality of room temperature ferromagnetism in CuO-ZnO heterostructures. Magnetic measurement results indicate the CuO-ZnO heterostructures show enhanced ferromagnetism contrary to the pure CuO (ZnO) and the observed ferromagnetism is proportional to the interface counts for the film-heterostructures, providing proof of interface related ferromagnetism. Our study suggests that magnetically functional interfaces could be an entirely new and novel design of magnetic materials for emergent devices.

摘要