Tailoring of room temperature ferromagnetism and electrical properties in ZnO by Co (3d) and Gd (4f) element co-doping
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- 作者：Santanu Dasb ; Sukhen Dasb ; Dipankar Dasc ; Soumyaditya Sutradhara ; sds.phy1@gmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Burstein-Moss effect ; Space charge polarization ; Dipolar orientation polarization ; Magnetic properties ; Bound magnetic polaron
- 刊名：Journal of Alloys and Compounds
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：691
- 期：Complete
- 页码：739-749
- 全文大小：3846 K
文摘
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Gd3+ and Co2+ co-doped ZnO nanoparticles were synthesized by hydrothermal method.
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Doped nanoparticles consist defects like oxygen vacancy (Vo) and Zinc interstitial (Zni).
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Defects were found to modulate optical magnetic and dielectric properties of samples.
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RTFM and giant coercivities are the vacancy mediated properties of the samples.
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Negative exchange bias confirms formation of AFM/FM bilayers below Neel temperature.