Tailoring the coercivity in ferromagnetic ZnO thin films by 3d and 4f elements codoping | Zendy

J. J. Lee | Zendy; Guozhong Xing | Zendy; Jiabao Yi | Zendy; T. Chen | Zendy; Mihail Ionescu | Zendy; S. Li | Zendy

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Tailoring the coercivity in ferromagnetic ZnO thin films by 3d and 4f elements codoping

Author(s) -

J. J. Lee,

Guozhong Xing,

Jiabao Yi,

T. Chen,

Mihail Ionescu,

S. Li

Publication year - 2014

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4861165

Subject(s) - icon , citation , coercivity , information retrieval , download , computer science , world wide web , physics , condensed matter physics , programming language

Cluster free, Co (3d) and Eu (4f) doped ZnO thin films were prepared using ion implantation technique accompanied by post annealing treatments. Compared with the mono-doped ZnO thin films, the samples codoped with Co and Eu exhibit a stronger magnetization with a giant coercivity of 1200 Oe at ambient temperature. This was further verified through x-ray magnetic circular dichroism analysis, revealing the exchange interaction between the Co 3d electrons and the localized carriers induced by Eu 3 ions codoping. The insight gained with modulating coercivity in magnetic oxides opens up an avenue for applications requiring non-volatility in spintronic devices. © 2014 AIP Publishing LLC

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