Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/2310
Full metadata record
DC FieldValueLanguage
dc.contributor.authorRaji, G R-
dc.contributor.authorBhagya Uthaman-
dc.contributor.authorThomas Senoy-
dc.contributor.authorSuresh, K G-
dc.contributor.authorManoj Raama Varma-
dc.date.accessioned2016-06-02T06:23:36Z-
dc.date.available2016-06-02T06:23:36Z-
dc.date.issued2015-03-14-
dc.identifier.citationJournal of Applied Physics 52(6):3561-3570,14-Mar 2015en_US
dc.identifier.urihttp://hdl.handle.net/123456789/2310-
dc.description.abstractThe effect of Ge substitution on the magnetic, magnetocaloric, and exchange bias properties of Heusler alloy system Ni50Mn36Sn14-xGex (x ¼ 1, 2) has been investigated. With the increase of Ge content, the cell volume decreases due to the smaller Ge radius and the martensitic transition temperature increases, while the Curie temperature of the austenite phase shows a small decrease. Metamagnetic behavior is observed in the low temperature magnetization isotherms for x ¼ 1, whereas it is less pronounced in x ¼ 2. The maximum magnetic entropy changes associated with the martensitic transition are 7.8 J/kg K and 2.3 J/kg K for x ¼ 1 and 2, respectively, for a field change of 5 T. Relative cooling power is found to be more in the vicinity of the Curie temperature of the austenite phase, compared to that at the martensitic transition temperature in both x ¼ 1 and 2. At low temperatures, both the samples exhibit exchange bias effect, with x ¼ 2 showing higher value of exchange bias field. This is ascribed to the coexistence of ferromagnetic and antiferromagnetic interactions in these alloys. Further, the critical behavior of the austenite phase of both the alloys is studied and the values of the critical exponents are found to be different from the mean field values, which is attributed to the magnetic inhomogeneity originated due to Ge substitution.en_US
dc.language.isoenen_US
dc.publisherAIPen_US
dc.titleMagnetocaloric Properties, Exchange Bias, and Critical Behavior of Ge Substituted Ni50Mn36Sn14 Heusler Alloysen_US
dc.typeArticleen_US
Appears in Collections:2015

Files in This Item:
File Description SizeFormat 
raji-journal of applied physics.pdf
  Restricted Access
2.34 MBAdobe PDFView/Open Request a copy


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.