Bulk nd Nano Manganite Materials
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(Sprache: Englisch)
The prepared nano pervoskite samples shows paramagnetic behaviour in the compounds prepared by SS method, but when it is prepared by SC method, it becomes superparamagnetic due to a partial migration of divalent ions to different sites. Due to substitution...
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The prepared nano pervoskite samples shows paramagnetic behaviour in the compounds prepared by SS method, but when it is prepared by SC method, it becomes superparamagnetic due to a partial migration of divalent ions to different sites. Due to substitution of lead / barium / strontion, intra-sublattice interaction become comparable with inter-sublattice interaction. In such a situation disorder and frustration takes place in the spin subsystem leading to the various magnetic structures; ferrimagnetic order, local spin canting, antiferrimagentic order, re-entrant spin glass (RSG) and spin glass etc. The magnetic ordering in these compounds is based on the Neel's two sub-lattice model of magnetism. The addition of Ba / Sr / Pb ions forces the same number of other cations to the different magnetic sites as a result the magnetic moment of the previous site increases hence magnetization and magnetic moment increase due to pb2+ / Ba2+/ Sr2+. The curves shape shows superparamagnetic character of the investigated sample, with optimized saturation magnetization and almost zero coercivity values.
Autoren-Porträt von B. M. Manohara
Manohara, Dr. B. M.Dr. B. M. Manohara is working as Assistant Professor and Head of Physics Department at Government First Grade College & P. G. Centre, Davanagere, Karnataka, India. He has 20 years of teaching and 8 years of research experience. His Google citation H-index is 5,I - index is 3 and ResearchGate - 11.74.
Bibliographische Angaben
- Autor: B. M. Manohara
- 2020, 112 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: Scholar's Press
- ISBN-10: 6138928318
- ISBN-13: 9786138928317
Sprache:
Englisch
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