ESR and optical absorption studies of Mn2+ ions doped silica and germania gels

Autor:	K. Mori, Masaaki Yamazaki, Ch. Sumalatha, T. Takeuchi, Kazuo Kojima, B. Sreedhar
Rok vydání:	1996
Předmět:	Absorption spectroscopy Chemistry Octahedral symmetry Doping Analytical chemistry Condensed Matter Physics Electronic Optical and Magnetic Materials Ion Differential thermal analysis Materials Chemistry Ceramics and Composites Absorption (chemistry) Hyperfine structure Sol-gel
Zdroj:	Journal of Non-Crystalline Solids. 203:84-87
ISSN:	0022-3093
DOI:	10.1016/0022-3093(96)00481-4
Popis:	The results of an investigation of the structure of Mn 2+ ions in silica and germania sol-gels using DTA, ESR and optical absorption techniques are reported. ESR spectra of Mn 2+ doped silica and germania gels at 303 K have a well resolved hyperfine structure of six lines spread over a region of about 50 mT centered at g = 2.003 ± 0.001. The optical absorption spectrum for silica gels heat treated at 573 K shows bands characteristic of Mn 2+ ions in an octahedral symmetry.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8772760839afaf8f92b142c2c44ec597 https://doi.org/10.1016/0022-3093(96)00481-4 Zobrazit plný text záznamu Full Text from ScienceDirect