Zobrazeno 1 - 10 of 85 pro vyhledávání: '"Kunal B. Modi"'
4
Probing reversal of orbital symmetry in CaCu3-xTi4-xFe2xO12 (x = 0.0–0.7) by X-ray absorption spectroscopy
Autor: Chi-Liang Chen, Asokan Kandasami, Chung-Li Dong, P.R. Pansara, P. Y. Raval, Kunal B. Modi
Publikováno v: Journal of Materials Science: Materials in Electronics. 32:13630-13638
The electronic properties studied using the X-ray absorption near-edge structure (XANES) spectroscopy performed in the vicinity of O K-, Ca L3,2-, Fe L3,2-, and Cu L3,2-edges demonstrate the reversal of orbital symmetry in CaCu3Ti4O12 on Fe3+ions sub
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f345736ac3faad1a270c2dd4e5ddcc69
https://doi.org/10.1007/s10854-021-05941-3
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6
Ca2+ - substitution effect on the electronic structure of CaCu3Ti4O12 studied by electron spectroscopy for chemical analysis
Autor: N.H. Vasoya, Divyesh V. Barad, Kunal B. Modi, Dong Kwon Lim, R.K. Singhal, Narendra Jakhar, Komal K. Jani, Pooja Y. Raval, Monika Nehra, Sandeep Kumar
Publikováno v: Ceramics International. 47:5542-5548
A detailed electronic structure study of quadruple perovskite series, Ca1+xCu3-xTi4O12 (for x = 0.0, 0.1, 0.2, 0.5, 1.0), using electron spectroscopy for chemical analysis (ESCA) has been carriedout. The Ti2p ESCA spectra imply that Ti ions remain in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a9d8bba9503796933e09cb54aa1136d
https://doi.org/10.1016/j.ceramint.2020.10.138
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7
Ca2+-substitution effect on the defect structural changes in the quadruple perovskite series Ca1Cu3Ti4O12 studied by positron annihilation and complementary methods
Autor: Maudud Ahmed, Komal K. Jani, P.M.G. Nambissan, Sudhish Kumar, Kunal B. Modi, Rabia Pandit, Shubharaj Mukherjee, P. Y. Raval, Divyesh V. Barad, Satya Narayan Dolia, Priya L. Mange
Publikováno v: Ceramics International. 47:2631-2640
A series of quadruple perovskites Ca1+xCu3-xTi4O12 was scanned by different spectroscopic and microscopic techniques. X-ray powder diffraction pattern analysis revealed that the system transformed from a monophasic (x = 0.0, 0.1 and 0.2) to biphasic
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::40bf745ca619c41c5b3e8ff860483d67
https://doi.org/10.1016/j.ceramint.2020.09.110
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10
First experimental evidence of non-collinear spin structure in CaCu2.3Ti3.3Fe1.4O12 quadruple perovskite through low-temperature, in-field 57Fe Mossbauer spectroscopy
Autor: P.R. Pansara, Satya Narayan Dolia, Kunal B. Modi, P. Y. Raval, Jagdish Nehra, Rabia Pandit
Publikováno v: Ceramics International. 46:10016-10022
A polycrystalline sample of quadruple perovskite oxide, CaCu2.3Ti3.3Fe1.4O12, was synthesized and characterized by zero-field and in-field (Happ = 50 kOe) 57Fe Mossbauer spectroscopy at 5 K. The presence of ΔmI = 0 spectral lines in Mossbauer spectr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::eb06d63a96af5b957c057befe8f7d52e
https://doi.org/10.1016/j.ceramint.2019.12.268
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