Proceedings ArticleDOI
Effect of substrate temperature on some properties of nitrogen incorporated nickel ferrite thin films
K. B. Anoop Baby,G. Markandeyulu,Aryasomayajula Subrahmanyam +2 more
- Vol. 1942, Iss: 1, pp 080042
TLDR
The GIXRD and Raman spectroscopic studies of the nitrogen incorporated nickel ferrite (N-NFO) thin films revealed their nanocrystalline nature as mentioned in this paper.Abstract:
The GIXRD and Raman spectroscopic studies of the nitrogen incorporated nickel ferrite (N-NFO) thin films revealed their nanocrystalline nature. The microstructure studies showed an increase in grain size with the increase of substrate temperature. The magnetization (M-H) measurements showedan increase in moment values with increase of substrate temperature. Moreover, an increase followed by a decrease in intrinsic coercive field (Hc)values with substrate temperature was seen. However, the magnetic moments were not found to saturate even at higher fields, indicating a superparamagnetic-type of behaviour. The optical transmission spectra and the corresponding Tauc plots revealed decrease of direct band gap with substrate temperature.read more
Citations
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Book ChapterDOI
Radio frequency sputtering of ferrite thin films
TL;DR: An overview of ferrite thin film growth using the radio frequency (RF) sputtering method and its advances in the growth methodology can be found in this paper , where the main parameters that pave the way to control film quality are sputtering power, targetto-substrate distance, base pressure, pressure during deposition, and substrate temperature.
References
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Journal ArticleDOI
Short-range B -site ordering in the inverse spinel ferrite NiFe 2 O 4
TL;DR: In this paper, the number of experimentally observed Raman modes exceeds the expected number for a normal spinelstructure and the polarization properties of most of the Raman lines provide evidence for a micro-scopic symmetry lower than that given by the Fd¯3m space group.
Journal ArticleDOI
Advances in ferrite microwave materials and devices
TL;DR: The application of ferrites in non-reciprocal components is discussed, with the emphasis on broadband isolators and circulators, and the ratio fmax/fmin of the frequencies that define the edges of the frequency band is characterized.
Journal ArticleDOI
Correlation between microstructure, electrical and optical properties of nanocrystalline NiFe1.925Dy0.075O4thin films
TL;DR: In this paper, the structural, electrical and optical properties of NiFe1925Dy0075O4 thin films were studied in detail, showing that the lattice constant and lattice-expansion effects are significant on the electrical conductivity and optical band gap.
Journal ArticleDOI
Grain growth kinetics and magnetic properties of NiZn ferrite thin films
TL;DR: In this article, the grain growth kinetics described by tradition phenomenological rate equation through nonlinear fitting of grain sizes for Ni0.5Zn0.4 ferrite thin films are investigated.
Journal ArticleDOI
Effect of thickness on structural and magnetic properties in nanocrystalline Fe–N thin films
TL;DR: In this article, the structural and magnetic properties of Fe-N thin films, for a thickness range of 40-280nm, grown on Si(100) substrates, were investigated.