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Title: A half-metallic half-Heusler alloy having the largest atomic-like magnetic moment at optimized lattice constant

Abstract

For half-Heusler alloys, the general formula is XYZ, where X can be a transition or alkali metal element, Y is another transition metal element, typically Mn or Cr, and Z is a group IV element or a pnicitide. The atomic arrangements within a unit-cell show three configurations. Before this study, most of the predictions of half-metallic properties of half-Heusler alloys at the lattice constants differing from their optimized lattice constant. Based on the electropositivity of X and electronegativity of Z for half-Heusler alloys, we found that one of the configurations of LiCrS exhibits half-metallic properties at its optimized lattice constant of 5.803Å, and has the maximum atomic-like magnetic moment of 5μB. In conclusion, the challenges of its growth and the effects of the spin-orbit effect in this alloy will be discussed.

Authors:
 [1];  [2];  [2]; ORCiD logo [3];  [4];  [5]
  1. Nanjing Univ. (China). School of Physics and Collaborative Innovation Center of Advanced Microstructures; Univ. of California, Davis, CA (United States). Dept. of Physics
  2. Univ. of California, Davis, CA (United States). Dept. of Physics
  3. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States). Physics Division
  4. Nanjing Univ. (China). School of Physics and Collaborative Innovation Center of Advanced Microstructures
  5. Johannes Gutenberg Univ., Mainz (Germany). Inst. fur Anorganische Chemie und Analytische Chemie
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
National Natural Science Foundation of China (NNSFC); National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1395300
Alternate Identifier(s):
OSTI ID: 1474361
Report Number(s):
LLNL-JRNL-736989
Journal ID: ISSN 2158-3226
Grant/Contract Number:  
AC52-07NA27344; ECCS-0725902; 2012CB921502; 10904061; 11034005; 61475070; 11474157; 11321063
Resource Type:
Accepted Manuscript
Journal Name:
AIP Advances
Additional Journal Information:
Journal Volume: 6; Journal Issue: 11; Journal ID: ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Lattice constants; Magnetic moments; Carrier density; Spin orbit interactions; Bond formation; Physics - Condensed matter physics

Citation Formats

Zhang, R. L., Damewood, L., Fong, C. Y., Yang, L. H., Peng, R. W., and Felser, C. A half-metallic half-Heusler alloy having the largest atomic-like magnetic moment at optimized lattice constant. United States: N. p., 2016. Web. doi:10.1063/1.4967365.
Zhang, R. L., Damewood, L., Fong, C. Y., Yang, L. H., Peng, R. W., & Felser, C. A half-metallic half-Heusler alloy having the largest atomic-like magnetic moment at optimized lattice constant. United States. doi:10.1063/1.4967365.
Zhang, R. L., Damewood, L., Fong, C. Y., Yang, L. H., Peng, R. W., and Felser, C. Wed . "A half-metallic half-Heusler alloy having the largest atomic-like magnetic moment at optimized lattice constant". United States. doi:10.1063/1.4967365. https://www.osti.gov/servlets/purl/1395300.
@article{osti_1395300,
title = {A half-metallic half-Heusler alloy having the largest atomic-like magnetic moment at optimized lattice constant},
author = {Zhang, R. L. and Damewood, L. and Fong, C. Y. and Yang, L. H. and Peng, R. W. and Felser, C.},
abstractNote = {For half-Heusler alloys, the general formula is XYZ, where X can be a transition or alkali metal element, Y is another transition metal element, typically Mn or Cr, and Z is a group IV element or a pnicitide. The atomic arrangements within a unit-cell show three configurations. Before this study, most of the predictions of half-metallic properties of half-Heusler alloys at the lattice constants differing from their optimized lattice constant. Based on the electropositivity of X and electronegativity of Z for half-Heusler alloys, we found that one of the configurations of LiCrS exhibits half-metallic properties at its optimized lattice constant of 5.803Å, and has the maximum atomic-like magnetic moment of 5μB. In conclusion, the challenges of its growth and the effects of the spin-orbit effect in this alloy will be discussed.},
doi = {10.1063/1.4967365},
journal = {AIP Advances},
number = 11,
volume = 6,
place = {United States},
year = {2016},
month = {11}
}

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