Cover Page July-2017-Advanced Materials Letters

Advanced Materials Letters

Volume 8, Issue 7, Pages 768-772, July 2017
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Magnetic, thermal and magnetocaloric properties of Ni50Mn35In14.5B0.5 ribbons

Sudip Pandey1*, Abdiel Quetz1, P. J. Ibarra-Gaytan2, C. F. Sanchez-Valdes3, Anil Aryal1, Igor Dubenko1, D20ipanjan Mazumdar1, J.L. Sanchez Llamazares2*, Shane Stadler4, Naushad Ali1

1Department of Physics, Southern Illinois University, Carbondale, IL 62901, USA

2Instituto Potosino de Investigación Cientifica y Tecnológica A.C., Camino a la Presa San Jose 2055, Col. Lomas 4sección, San Luis Potosi, S.L.P. 78216, Mexico

3División Multidisciplinaria, Ciudad Universitaria, Universidad Autónoma de Ciudad Juárez (UACJ), calle José de Jesús Macías Delgado # 18100, Ciudad Juárez 32579, Chihuahua, México

4Department of Physics & Astronomy, Louisiana State University, Baton Rouge, LA 70803, USA

Adv. Mater. Lett., 2017, 8 (7), pp 768-772

DOI: 10.5185/amlett.2017.1452

Publication Date (Web): May 23, 2017

E-mail: sudip@siu.edu, jose.sanchez@ipicyt.edu.mx

Abstract

The structural, thermal, magnetic, and magnetocaloric properties of Ni50Mn35In14.5B0.5 melt-spun ribbons have been investigated using room-temperature x-ray diffraction (XRD), differential scanning calorimetry (DSC), and magnetization measurements. Magnetic and structural transitions were found to coincide in temperature leading to large magnetocaloric effects associated with the first-order magnetostructural phase transition. In comparison to the bulk Ni50Mn35In14.5B0.5 alloys, both the martensitic transition temperature (TM) and Curie temperature (TC) shifted to lower temperatures. The MCE parameters were found to be comparable to those reported for bulk Ni50Mn35In14.5B0.5 Heusler alloys and Ni48Mn39In13-xBx ribbons. A comparison of magnetic properties and magnetocaloric effects in Ni50Mn35In14.5B0.5 alloys as a ribbon and in their bulk form has been shown in detail. The roles of the magnetic and structural changes on the transition the temperatures of the ribbons are discussed. 

Keywords

Heusler alloys, martensitic transition, ribbons, magnetocaloric effects.

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