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Magnetic characterization and charge state of nonmagnetic ion-substituted YMn0.8Fe0.2O3.
- Source :
- Journal of Materials Science: Materials in Electronics; May2018, Vol. 29 Issue 9, p7287-7293, 7p
- Publication Year :
- 2018
-
Abstract
- The structure, magnetic properties and charge state of Al/Bi-substituted YMn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>O<subscript>3</subscript> were investigated. The Y(Mn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>)<subscript>0.95</subscript>Al<subscript>0.05</subscript>O<subscript>3</subscript> and Y<subscript>0.95</subscript>Bi<subscript>0.05</subscript>Mn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>O<subscript>3</subscript> solid solutions all exhibited the hexagonal P6<subscript>3</subscript>cm space group, similar to YMnO<subscript>3</subscript>. The magnetic structures of Al-substituted YMn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>O<subscript>3</subscript> were not uniform, and were predominantly antiferromagnetic with weak ferromagnetic properties at low temperatures. The ratios Mn<superscript>2+</superscript>:Mn<superscript>3+</superscript> and Fe<superscript>2+</superscript>:Fe<superscript>3+</superscript> noticeably decreased upon Al substitution in YMn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>O<subscript>3</subscript>, and the magnetic transition temperature was reduced dramatically. The cluster glass state behavior observed in Y(Mn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>)<subscript>0.95</subscript>Al<subscript>0.05</subscript>O<subscript>3</subscript> was absent in the case of Y<subscript>0.95</subscript>Bi<subscript>0.05</subscript>Mn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>O<subscript>3</subscript>, which indicated weakened ferromagnetic interactions in the latter. This may be related to the decreased oxygen content in Y<subscript>0.95</subscript>Bi<subscript>0.05</subscript>Mn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>O<subscript>3</subscript>. Bismuth substitution can strengthen the antiferromagnetic interactions in YMn<subscript>0.8</subscript>Fe<subscript>0.2</subscript>O<subscript>3</subscript>. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09574522
- Volume :
- 29
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Journal of Materials Science: Materials in Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 129020601
- Full Text :
- https://doi.org/10.1007/s10854-018-8717-9