Metamagnetic Phase Transitions in (Sm0.5Gd0.5)0.55Sr0.45MnO3 Ceramics
Author
Source
Physics Research International
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-25
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The temperature dependences of ac magnetic susceptibility of the (Sm0.5Gd0.5)0.55Sr0.45MnO3 ceramics provide evidence of the formation of a mixed insulating state with a specific quantum-disordered phase, in which the domains with a long-range antiferromagnetic order dominate at temperatures below TN≅48,5 K.
Irreversible metamagnetic phase transition in the ferromagnetically ordered state is carried out at the critical field Hc1∼25 kOe which remains constant in the temperature range from 4.2 K to 60 K.
From the analysis of the magnetization isotherms, the conclusion can be made about a spontaneous phase transition into the state with charge and orbital ordering at temperatures below the critical value TCO∼60 K.
It is supposed that short-range charge correlations exist in unusually large interval of temperatures ∼90 K at temperatures above TCO that considerably exceeds the area of existence of local orbital correlations ∼50 K.
American Psychological Association (APA)
Bukhanko, Fedor N.. 2012. Metamagnetic Phase Transitions in (Sm0.5Gd0.5)0.55Sr0.45MnO3 Ceramics. Physics Research International،Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-486712
Modern Language Association (MLA)
Bukhanko, Fedor N.. Metamagnetic Phase Transitions in (Sm0.5Gd0.5)0.55Sr0.45MnO3 Ceramics. Physics Research International No. 2012 (2012), pp.1-7.
https://search.emarefa.net/detail/BIM-486712
American Medical Association (AMA)
Bukhanko, Fedor N.. Metamagnetic Phase Transitions in (Sm0.5Gd0.5)0.55Sr0.45MnO3 Ceramics. Physics Research International. 2012. Vol. 2012, no. 2012, pp.1-7.
https://search.emarefa.net/detail/BIM-486712
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-486712