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Title: Magnetic field dependence of the martensitic transition and magnetocaloric effects in Ni49BiMn35In15

Journal Article · · AIP Advances
DOI: https://doi.org/10.1063/1.5130405 · OSTI ID:1800358
 [1];  [2];  [2];  [3]; ORCiD logo [4];  [5];  [2]
  1. Southern Illinois Univ., Carbondale, IL (United States). Physics Dept.; OSTI
  2. Southern Illinois Univ., Carbondale, IL (United States). Physics Dept.
  3. Lomonosov Moscow State Univ., Moscow (Russia)
  4. Lappeenranta University of Technology (Finland). Dept. of Physics
  5. Louisiana State Univ., Baton Rouge, LA (United States). Dept.of Physics and Astronomy

The structural, magnetic, and magnetocaloric properties of the Bi-doped Heusler alloy Ni49BiMn35In15 have been investigated using room temperature X-ray diffraction (XRD) and magnetization measurements in a temperature interval of 5-400 K. The alloy at room temperature was found to be in a mixture of a high temperature austenite phase (AP) and a low temperature martensite phase (MP). A drastic shift in the martensitic transition temperature at the rate of 16 K/T from 197 K to lower temperatures was observed. A kinetic arrest phenomenon of the AP was observed in the magnetization and electrical resistivity measurements during field-cooled (FC) measurements at 5T. A metamagnetic behavior characterized by a jump in magnetization in the isothermal M(H) curves near TM was observed. The maximum value of the magnetic entropy change and refrigerant capacity at Curie temperature were found to be 5.5 Jkg-1K-1 and 312 Jkg-1 for μoΔH = 5T, respectively. A large magnetoresistance value of -56% was found near the martensitic transition.

Research Organization:
Louisiana State Univ., Baton Rouge, LA (United States); Southern Illinois Univ., Carbondale, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
FG02-06ER46291; SC0010521
OSTI ID:
1800358
Journal Information:
AIP Advances, Journal Name: AIP Advances Journal Issue: 1 Vol. 10; ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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