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Vacancy-mediated room-temperature ferromagnetism in Zn1−xMnxO thin films

✍ Scribed by Gopalakrishnan, N. ;Balakrishnan, L. ;Srimathy, B. ;Kumar, M. Senthil ;Balasubramanian, T.


Book ID
105366153
Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
480 KB
Volume
207
Category
Article
ISSN
0031-8965

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✦ Synopsis


Abstract

The effect of oxygen vacancies on ferromagnetism (FM) in Zn~1−x~Mn~x~O thin films grown by radio frequency (RF) sputtering has been investigated. The grown films at different oxygen pressures have been characterized by X‐ray diffraction (XRD), Hall effect, photoluminescence (PL) and vibrating sample magnetometry (VSM). The observed ferromagnetism/diamagnetism by the VSM measurement due to the variation of oxygen vacancies has been confirmed by XRD, PL, and Hall results. The vacancy‐mediated FM has been explained by the formation of magnetic polarons.


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