Effect of carbon content on magnetostructural properties of Mn(3)GaC

dc.contributor.author	Dias, E.T.
dc.contributor.author	Priolkar, K.R.
dc.contributor.author	Nigam, A.K.
dc.date.accessioned	2015-06-04T04:37:04Z
dc.date.available	2015-06-04T04:37:04Z
dc.date.issued	2014
dc.identifier.citation	Journal of Magnetism and Magnetic Materials. 363; 2014; 140-144.	en_US
dc.identifier.uri	http://dx.doi.org/10.1016/j.jmmm.2014.03.052
dc.identifier.uri	http://irgu.unigoa.ac.in/drs/handle/unigoa/3165
dc.description.abstract	Effect of carbon content on magnetostructural transformation in antiperovskites of the type Mn(3)GaC(x) (x=0.8, 1.0 and 1.05) has been investigated. It is found that increase in carbon content changes the ground state from ferromagnetic metallic (x=0.8) to antiferromagnetic semiconducting (x=1.05) type. This has been attributed to localization of itinerant Mn 3d electrons due to increased Mn3d - C2p hybridization. Such a hybridization strengthens Mn-C-Mn antiferromagnetic interactions over Mn-Mn ferromagnetic interactions. Further, magnetic field can be used as a tool to modulate the relative strengths of these ferromagnetic and antiferromagnetic interactions thereby affecting the nature and strength of magnetocaloric properties.	en_US
dc.publisher	Elsevier	en_US
dc.subject	Physics	en_US
dc.title	Effect of carbon content on magnetostructural properties of Mn(3)GaC	en_US
dc.type	Journal article	en_US
dc.identifier.impf	y