2011
DOI: 10.1016/j.jmmm.2010.11.090
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Enhancement of room temperature ferromagnetism of Fe-doped ZnO epitaxial thin films with Al co-doping

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Cited by 34 publications
(12 citation statements)
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“…The obtained fitting seems to be not so good but our fitting parameters are in good agreement with previously published studies [27][28][29][30][31]. The similar results related with linear temperature dependence of the optical band gap were reported in Zn(Fe,Al)O material [18]. According to Cody's formula: where k is a constant.…”
Section: Resultssupporting
confidence: 90%
See 1 more Smart Citation
“…The obtained fitting seems to be not so good but our fitting parameters are in good agreement with previously published studies [27][28][29][30][31]. The similar results related with linear temperature dependence of the optical band gap were reported in Zn(Fe,Al)O material [18]. According to Cody's formula: where k is a constant.…”
Section: Resultssupporting
confidence: 90%
“…Chattopadhyay et al [18] reported the temperature dependence of absorption spectra in UV regime for the Fe-doped with Al co-doping ZnO films. This dependence of band gap was fitted by Varshni's equation with Eg(0) = 3.55 eV, = 2.41 meV/K and ␤ = 935 K. The main goal of this work is to investigate the effects of Fe content on the structural and morphological properties of sol-gel derived films.…”
Section: Introductionmentioning
confidence: 99%
“…Sebastian et al demonstrated the addition of carriers seems to increase the carrier concentration and enhance ferromagnetism in ZnO samples doped with nickel and cobalt [17]. Wu et al reported the addition of Al to the Cu-doped ZnO nanorods decreased the electrical resistance, increased the carrier concentration dramatically, and retained the ferromagnetic properties of the Zn:CuO nanorods [18]. Chattopadhyay et al concluded that free carrier density has an effect on magnetism in Fe-doped ZnO epitaxial thin films with Al co-doping [19].…”
Section: Introductionmentioning
confidence: 99%
“…However, the maximum Curie temperature observed for these systems are between 100-200 K. Indeed, one may rather desire a system with Curie temperature around room temperature or higher making it accessible for futuristic applications. In order to bring about this milestone, the area of exploration for the materials was extended to oxide systems as well due to wide range of rich properties that these oxide systems are endowed with [5][6][7][8][9][10][11][12][13][14][15]. The discovery of room temperature ferromagnetism in Mn doped ZnO thin film by Dietl et al attracted tremendous attention in ZnO based materials [5].…”
Section: Introductionmentioning
confidence: 99%