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Mössbauer studies of α″-Fe16N2 and α′-Fe8N films.
- Source :
- Journal of Materials Science; Dec2001, Vol. 36 Issue 24, p5835-5838, 4p
- Publication Year :
- 2001
-
Abstract
- Conversion-electron Mössbauer spectra of epitaxial α″-Fe<subscript>16</subscript>N<subscript>2</subscript> and α′-Fe<subscript>8</subscript>N films have been studied and their differences are discussed in detail. The Mössbauer spectrum of α″-Fe<subscript>16</subscript>N<subscript>2</subscript> can be decomposed into three subspectra, which correspond to the 4 d, 8 h and 4 c sites. The Mössbauer spectrum of α′-Fe<subscript>8</subscript>N can be fitted using four spectra based on a nitrogen-atom-random-distribution model. The average hyperfine field is larger (3%) for α″-Fe<subscript>16</subscript>N<subscript>2</subscript> than for α′-Fe<subscript>8</subscript>N, which is approximately consistent with a 4.1% enhancement of the magnetic moments for α″-Fe<subscript>16</subscript>N<subscript>2</subscript>. The iron moments tend to locate in the film plane for α″-Fe<subscript>16</subscript>N<subscript>2</subscript> and to arrange perpendicularly to the film plane for α′-Fe<subscript>8</subscript>N. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222461
- Volume :
- 36
- Issue :
- 24
- Database :
- Complementary Index
- Journal :
- Journal of Materials Science
- Publication Type :
- Academic Journal
- Accession number :
- 52539772
- Full Text :
- https://doi.org/10.1023/A:1012912323318