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The effects of hydrostatic pressure on the martensitic transition, magnetic, and magnetocaloric effects of Ni45Mn43CoSn11

Published online by Cambridge University Press:  11 October 2017

Sudip Pandey*
Affiliation:
Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA
Ahmad Us Saleheen
Affiliation:
Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
Abdiel Quetz
Affiliation:
Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA
Jing-Han Chen
Affiliation:
Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
Anil Aryal
Affiliation:
Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA
Igor Dubenko
Affiliation:
Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA
Philip W. Adams
Affiliation:
Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
Shane Stadler
Affiliation:
Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA
Naushad Ali
Affiliation:
Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA
*
Address all correspondence to Sudip Pandey at sudip@siu.edu
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Abstract

The magnetic and magnetocaloric properties of Ni45Mn43CoSn11 have been investigated using heat capacity measurements and magnetization with hydrostatic pressure applications. A shift in the martensitic transition temperature by 40 K to higher temperatures was observed with application of pressure P = 1.06 GPa. The magnetic entropy changes significantly increases from 24 to 42 J/kgK at pressure of 0.73 GPa. A large adiabatic temperature change of 4 K was found from specific heat measurements. Also, the density of states and Debye temperature has been estimated from heat capacity measurements. The mixed effects of pressure and magnetic field on the transition temperature are discussed.

Type
Research Letters
Copyright
Copyright © Materials Research Society 2017 

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