Please use this identifier to cite or link to this item: https://doi.org/10.1063/1.3690113
Title: Interplay between carrier and cationic defect concentration in ferromagnetism of anatase Ti1-xTaxO2 thin films
Authors: Roy Barman, A.
Annadi, A.
Gopinadhan, K. 
Lú, W.M.
Ariando 
Dhar, S. 
Venkatesan, T. 
Issue Date: 2012
Citation: Roy Barman, A., Annadi, A., Gopinadhan, K., Lú, W.M., Ariando, Dhar, S., Venkatesan, T. (2012). Interplay between carrier and cationic defect concentration in ferromagnetism of anatase Ti1-xTaxO2 thin films. AIP Advances 2 (1) : -. ScholarBank@NUS Repository. https://doi.org/10.1063/1.3690113
Abstract: Thin films of Ta incorporated TiO2 grown by pulsed laser deposition under specific growth conditions show room temperature ferromagnetism. Ta introduces carriers and concomitantly cationic defects, the combination of which leads to ferromagnetism. In this paper, we report on the dependence of the carrier and cationic defect density (compensation) on various parameters such as oxygen growth pressure, temperature and Ta concentration. Most likely, the Ti vacancies act as magnetic centers and the free electrons help with the exchange leading to ferromagnetism via Ruderman-Kittel-Kasuya- Yosida mechanism. Copyright 2012 Author(s).
Source Title: AIP Advances
URI: http://scholarbank.nus.edu.sg/handle/10635/82564
ISSN: 21583226
DOI: 10.1063/1.3690113
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