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Title: Magnetostructural martensitic transformations with large volume changes and magneto-strains in all-d-metal Heusler alloys

Abstract

The all-d-metal Mn{sub 2}-based Heusler ferromagnetic shape memory alloys Mn{sub 50}Ni{sub 40−x}Co{sub x}Ti{sub 10} (x = 8 and 9.5) are realized. With a generic comparison between d-metal Ti and main-group elements in lowering the transformation temperature, the magnetostructural martensitic transformations are established by further introducing Co to produce local ferromagnetic Mn-Co-Mn configurations. A 5-fold modulation and (3, −2) stacking of [00 10] of martensite are determined by X-ray diffraction and HRTEM analysis. Based on the transformation, a large magneto-strain of 6900 ppm and a large volume change of −2.54% are observed in polycrystalline samples, which makes the all-d-metal magnetic martensitic alloys of interest for magnetic/pressure multi-field driven applications.

Authors:
; ; ; ; ;  [1];  [1];  [2]; ;  [3]; ;  [4]
  1. State Key Laboratory for Magnetism, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
  2. (China)
  3. National Center of Analysis and Testing for Nonferrous Metals and Electronic Materials, General Research Institute for Nonferrous Metals, Beijing 100088 (China)
  4. School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130 (China)
Publication Date:
OSTI Identifier:
22590546
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 109; Journal Issue: 7; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; HEUSLER ALLOYS; MARTENSITE; METALS; MODULATION; PHASE TRANSFORMATIONS; POLYCRYSTALS; SHAPE MEMORY EFFECT; STRAINS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Wei, Z. Y., Liu, E. K., E-mail: ekliu@iphy.ac.cn, Xi, X. K., Zhang, H. W., Wang, W. H., Wu, G. H., Li, Y., School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, Han, X. L., Du, Z. W., Luo, H. Z., and Liu, G. D.. Magnetostructural martensitic transformations with large volume changes and magneto-strains in all-d-metal Heusler alloys. United States: N. p., 2016. Web. doi:10.1063/1.4961382.
Wei, Z. Y., Liu, E. K., E-mail: ekliu@iphy.ac.cn, Xi, X. K., Zhang, H. W., Wang, W. H., Wu, G. H., Li, Y., School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, Han, X. L., Du, Z. W., Luo, H. Z., & Liu, G. D.. Magnetostructural martensitic transformations with large volume changes and magneto-strains in all-d-metal Heusler alloys. United States. doi:10.1063/1.4961382.
Wei, Z. Y., Liu, E. K., E-mail: ekliu@iphy.ac.cn, Xi, X. K., Zhang, H. W., Wang, W. H., Wu, G. H., Li, Y., School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130, Han, X. L., Du, Z. W., Luo, H. Z., and Liu, G. D.. 2016. "Magnetostructural martensitic transformations with large volume changes and magneto-strains in all-d-metal Heusler alloys". United States. doi:10.1063/1.4961382.
@article{osti_22590546,
title = {Magnetostructural martensitic transformations with large volume changes and magneto-strains in all-d-metal Heusler alloys},
author = {Wei, Z. Y. and Liu, E. K., E-mail: ekliu@iphy.ac.cn and Xi, X. K. and Zhang, H. W. and Wang, W. H. and Wu, G. H. and Li, Y. and School of Materials Science and Engineering, Hebei University of Technology, Tianjin 300130 and Han, X. L. and Du, Z. W. and Luo, H. Z. and Liu, G. D.},
abstractNote = {The all-d-metal Mn{sub 2}-based Heusler ferromagnetic shape memory alloys Mn{sub 50}Ni{sub 40−x}Co{sub x}Ti{sub 10} (x = 8 and 9.5) are realized. With a generic comparison between d-metal Ti and main-group elements in lowering the transformation temperature, the magnetostructural martensitic transformations are established by further introducing Co to produce local ferromagnetic Mn-Co-Mn configurations. A 5-fold modulation and (3, −2) stacking of [00 10] of martensite are determined by X-ray diffraction and HRTEM analysis. Based on the transformation, a large magneto-strain of 6900 ppm and a large volume change of −2.54% are observed in polycrystalline samples, which makes the all-d-metal magnetic martensitic alloys of interest for magnetic/pressure multi-field driven applications.},
doi = {10.1063/1.4961382},
journal = {Applied Physics Letters},
number = 7,
volume = 109,
place = {United States},
year = 2016,
month = 8
}
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