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Title: Effect of Bi substitution on the magnetic and magnetocaloric properties of Ni 50Mn 35In 15-xBi x Heusler alloys

Abstract

The structural, magnetic, magnetocaloric, and transport properties of Ni 50Mn 35In 15-xBi x (x = 0, 0.25, 0.5, 1, 1.5) compounds has been studied through X-ray diffraction (XRD), differential scanning calorimetry, and magnetization measurements. A mixture of high temperature austenite phase (AP) and low temperature martensitic phase (MP) was observed from the XRD at room temperature. The saturation magnetization M S at 10 K was found to decrease with increasing Bi content. A shift in the martensitic transition temperature (T M) relative to the parent compound was observed with a maximum shift of ~ 36 K for x = 1.5. Abnormal shifts in T C and T M to higher temperatures were observed at high field for x ≥ 0.5. Large magnetic entropy changes (ΔS M) of about 40 J/kg K (x = 0) and 34 J/kg K (x = 0.25) were observed at T M with H = 5 T, which reduced significantly for higher Bi concentrations. The doping of small amounts of Bi in the In sites increased the peak width of the ΔS M curves at the second order transition, leading to larger values of relative cooling power. A significant magnetoresistance (-30%) was observed near T Mmore » with ΔH = 5T for x = 0.5.« less

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [1];  [1];  [2];  [1]
  1. Southern Illinois Univ., Carbondale, IL (United States)
  2. Louisiana State Univ., Baton Rouge, LA (United States)
Publication Date:
Research Org.:
Southern Illinois Univ., Carbondale, IL (United States); Louisiana State Univ., Baton Rouge, LA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1499381
Alternate Identifier(s):
OSTI ID: 1414031
Grant/Contract Number:  
FG02-06ER46291; SC0010521; FG02-13ER46946
Resource Type:
Accepted Manuscript
Journal Name:
AIP Advances
Additional Journal Information:
Journal Volume: 8; Journal Issue: 5; Journal ID: ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Aryal, Anil, Quetz, Abdiel, Pandey, Sudip, Dubenko, Igor, Stadler, Shane, and Ali, Naushad. Effect of Bi substitution on the magnetic and magnetocaloric properties of Ni50Mn35In15-xBix Heusler alloys. United States: N. p., 2017. Web. doi:10.1063/1.5004694.
Aryal, Anil, Quetz, Abdiel, Pandey, Sudip, Dubenko, Igor, Stadler, Shane, & Ali, Naushad. Effect of Bi substitution on the magnetic and magnetocaloric properties of Ni50Mn35In15-xBix Heusler alloys. United States. doi:10.1063/1.5004694.
Aryal, Anil, Quetz, Abdiel, Pandey, Sudip, Dubenko, Igor, Stadler, Shane, and Ali, Naushad. Tue . "Effect of Bi substitution on the magnetic and magnetocaloric properties of Ni50Mn35In15-xBix Heusler alloys". United States. doi:10.1063/1.5004694. https://www.osti.gov/servlets/purl/1499381.
@article{osti_1499381,
title = {Effect of Bi substitution on the magnetic and magnetocaloric properties of Ni50Mn35In15-xBix Heusler alloys},
author = {Aryal, Anil and Quetz, Abdiel and Pandey, Sudip and Dubenko, Igor and Stadler, Shane and Ali, Naushad},
abstractNote = {The structural, magnetic, magnetocaloric, and transport properties of Ni50Mn35In15-xBix (x = 0, 0.25, 0.5, 1, 1.5) compounds has been studied through X-ray diffraction (XRD), differential scanning calorimetry, and magnetization measurements. A mixture of high temperature austenite phase (AP) and low temperature martensitic phase (MP) was observed from the XRD at room temperature. The saturation magnetization MS at 10 K was found to decrease with increasing Bi content. A shift in the martensitic transition temperature (TM) relative to the parent compound was observed with a maximum shift of ~ 36 K for x = 1.5. Abnormal shifts in TC and TM to higher temperatures were observed at high field for x ≥ 0.5. Large magnetic entropy changes (ΔSM) of about 40 J/kg K (x = 0) and 34 J/kg K (x = 0.25) were observed at TM with H = 5 T, which reduced significantly for higher Bi concentrations. The doping of small amounts of Bi in the In sites increased the peak width of the ΔSM curves at the second order transition, leading to larger values of relative cooling power. A significant magnetoresistance (-30%) was observed near TM with ΔH = 5T for x = 0.5.},
doi = {10.1063/1.5004694},
journal = {AIP Advances},
number = 5,
volume = 8,
place = {United States},
year = {2017},
month = {12}
}

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