dc.contributor.author |
Dias, E.T. |
|
dc.contributor.author |
Priolkar, K.R. |
|
dc.contributor.author |
Ranjan, R. |
|
dc.contributor.author |
Nigam, A.K. |
|
dc.contributor.author |
Emura, S. |
|
dc.date.accessioned |
2018-01-17T04:30:40Z |
|
dc.date.available |
2018-01-17T04:30:40Z |
|
dc.date.issued |
2017 |
|
dc.identifier.citation |
Journal of Applied Physics. 122(10); 2017; ArticleID_103906. |
en_US |
dc.identifier.uri |
http://doi.org/10.1063/1.4996933 |
|
dc.identifier.uri |
http://irgu.unigoa.ac.in/drs/handle/unigoa/5080 |
|
dc.description.abstract |
Mn sub(3)GaC undergoes a ferromagnetic to antiferromagnetic, volume discontinuous cubic-cubic phase transition as a function of temperature, pressure, and magnetic field. Through a series of temperature dependent x-ray absorption fine structure spectroscopy experiments at the Mn K and Ga K edge, it is shown that the first order magnetic transformation in Mn sub(3)GaC is entirely due to distortions in the Mn sub-lattice and with a very little role for Mn-C interactions. The distortion in the Mn sub-lattice results in long and short Mn-Mn bonds with the longer Mn-Mn bonds favoring ferromagnetic interactions and the shorter Mn-Mn bonds favoring antiferromagnetic interactions. At the first order transition, the shorter Mn-Mn bonds exhibit an abrupt decrease in their length resulting in an antiferromagnetic ground state and a strained lattice. |
en_US |
dc.publisher |
AIP |
en_US |
dc.subject |
Physics |
en_US |
dc.title |
Mechanism of magnetostructural transformation in multifunctional Mn sub(3)GaC |
en_US |
dc.type |
Journal article |
en_US |
dc.identifier.impf |
y |
|