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  Improved magnetostructural and magnetocaloric reversibility in magnetic Ni-Mn-In shape-memory Heusler alloy by optimizing the geometric compatibility condition

Devi, P., Salazar Mejía, C., Ghorbani Zavareh, M., Dubey, K. K., Kushwaha, P., Skourski, Y., et al. (2019). Improved magnetostructural and magnetocaloric reversibility in magnetic Ni-Mn-In shape-memory Heusler alloy by optimizing the geometric compatibility condition. Physical Review Materials, 3(6): 062401, pp. 1-7. doi:10.1103/PhysRevMaterials.3.062401.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-FB71-3 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-FB7C-8
Genre: Journal Article

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 Creators:
Devi, P.1, Author              
Salazar Mejía, C2, Author
Ghorbani Zavareh, M.1, Author              
Dubey, K. K.2, Author
Kushwaha, Pallavi3, Author              
Skourski, Y.2, Author
Felser, C.4, Author              
Nicklas, M.5, Author              
Singh, Sanjay1, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              
3Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863462              
4Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              
5Michael Nicklas, Physics of Quantum Materials, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863472              

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 Abstract: We report an improved reversibility of magnetostriction and inverse magnetocaloric effect (MCE) for the magnetic shape-memory Heusler alloy Ni1.8Mn1.8In0.4. We show that the magnetostriction and MCE crucially depends on the geometrical compatibility of the austenite and martensite phases. Detailed information on the compatibility of both phases has been obtained from the transformation matrix calculated from x-ray diffraction data. The uniqueness of the lattice parameters results in an improved reversibility of the magnetostriction and the MCE. In the thermal hysteresis region of the martensitic transformation, the maximum relative length change is 0.3% and the adiabatic temperature change Delta T-ad approximate to -10 K in pulsed magnetic fields. Our results reveal that the approach of geometric compatibility will allow one to design materials with reversible magnetostriction and reversible inverse MCE at a first-order magnetostructural phase transition in shape-memory Heusler alloys.

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Language(s): eng - English
 Dates: 2019-06-172019-06-17
 Publication Status: Published in print
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Title: Physical Review Materials
  Abbreviation : Phys. Rev. Mat.
Source Genre: Journal
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Publ. Info: College Park, MD : American Physical Society
Pages: - Volume / Issue: 3 (6) Sequence Number: 062401 Start / End Page: 1 - 7 Identifier: ISSN: 2475-9953
CoNE: https://pure.mpg.de/cone/journals/resource/2475-9953