Please use this identifier to cite or link to this item: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1893
Title: Modulation of ferromagnetism and transport in BxCyNz thin films via nitrogen doping and defects
Authors: MANDAL, RAJESH
BABAR, ROHIT
Tripathi, Malvika
DATTA, SHOUVIK
Rawat, Rajeev
Choudhary, R.J.
KABIR, MUKUL
OGALE, SATISHCHANDRA
Dept. of Physics
Keywords: Pulsed Laser Deposition
BxCyNz thin films
Nitrogen defects
Transport crossover
Ferromagnetism
TOC-FEB-2019
2019
Issue Date: Jun-2019
Publisher: Elsevier B.V.
Citation: Journal of Magnetism and Magnetic Materials, 479, 67-73.
Abstract: Thin films of BxCyNz are grown for the first time using the ammonia assisted Pulsed Laser Deposition (PLD) technique, known for its precise stoichiometry control, and their magnetic and transport properties are carefully studied along with atomistic chemical and microstructural details by using the techniques of X-ray photoelectron spectroscopy (XPS), Raman Spectroscopy and synchrotron-based X-ray absorption near-edge structure (XANES) and Valence Band Spectroscopy (VBS). The role of dopants and defects is brought out using a combined comprehensive analysis based on these experimental results and Density Functional Theory (DFT) calculations. An interesting crossover is noted in the transport mechanism of charge carriers with the change in doping level of specific nitrogen defects. A robust and high saturation magnetization is achieved in BCN films which is higher by almost hundred times as compared to that in similarly grown undoped carbon film.
URI: http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/1893
https://doi.org/10.1016/j.jmmm.2019.02.014
ISSN: 0304-8853
Appears in Collections:JOURNAL ARTICLES

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