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Title: Hole doping and antiferromagnetic correlations above the Neel temperature of the topological semimetal (Sr 1-xK x)MnSb 2

Abstract

We report that neutron diffraction and magnetic susceptibility studies of orthorhombic single crystal (Sr 0.97K 0.03) MnSb 2 confirm the three-dimensional (3D) C-type antiferromagnetic (AFM) ordering of the Mn 2+ moments at T N = 305 ± 3 K, which is slightly higher than that of the parent SrMnSb 2 with T N = 297 ± 3 K. Susceptibility measurements of the K-doped and parent crystals above T N are characteristic of 2D AFM systems. This is consistent with high-temperature neutron diffraction of the parent compound that displays persisting 2D AFM correlations well above T N to at least ~ 560 K with no evidence of a ferromagnetic phase. Analysis of the de Haas–van Alphen magnetic oscillations of the K-doped crystal is consistent with hole doping.

Authors:
 [1];  [1];  [1];  [2];  [3];  [3];  [3]
  1. Ames Lab., Ames, IA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Ames Lab. and Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1556097
Alternate Identifier(s):
OSTI ID: 1545456; OSTI ID: 1550741
Report Number(s):
[IS-J-9994]
[Journal ID: ISSN 2469-9950; PRBMDO]
Grant/Contract Number:  
[AC02-07CH11358; AC05-00OR22725]
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
[ Journal Volume: 100; Journal Issue: 1]; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE

Citation Formats

Liu, Yong, Islam, Farhan, Dennis, Kevin W., Tian, Wei, Ueland, Benjamin G., McQueeney, Robert J., and Vaknin, David. Hole doping and antiferromagnetic correlations above the Neel temperature of the topological semimetal (Sr1-xKx)MnSb2. United States: N. p., 2019. Web. doi:10.1103/PhysRevB.100.014437.
Liu, Yong, Islam, Farhan, Dennis, Kevin W., Tian, Wei, Ueland, Benjamin G., McQueeney, Robert J., & Vaknin, David. Hole doping and antiferromagnetic correlations above the Neel temperature of the topological semimetal (Sr1-xKx)MnSb2. United States. doi:10.1103/PhysRevB.100.014437.
Liu, Yong, Islam, Farhan, Dennis, Kevin W., Tian, Wei, Ueland, Benjamin G., McQueeney, Robert J., and Vaknin, David. Mon . "Hole doping and antiferromagnetic correlations above the Neel temperature of the topological semimetal (Sr1-xKx)MnSb2". United States. doi:10.1103/PhysRevB.100.014437.
@article{osti_1556097,
title = {Hole doping and antiferromagnetic correlations above the Neel temperature of the topological semimetal (Sr1-xKx)MnSb2},
author = {Liu, Yong and Islam, Farhan and Dennis, Kevin W. and Tian, Wei and Ueland, Benjamin G. and McQueeney, Robert J. and Vaknin, David},
abstractNote = {We report that neutron diffraction and magnetic susceptibility studies of orthorhombic single crystal (Sr0.97K0.03) MnSb2 confirm the three-dimensional (3D) C-type antiferromagnetic (AFM) ordering of the Mn2+ moments at TN = 305 ± 3 K, which is slightly higher than that of the parent SrMnSb2 with TN = 297 ± 3 K. Susceptibility measurements of the K-doped and parent crystals above T N are characteristic of 2D AFM systems. This is consistent with high-temperature neutron diffraction of the parent compound that displays persisting 2D AFM correlations well above TN to at least ~ 560 K with no evidence of a ferromagnetic phase. Analysis of the de Haas–van Alphen magnetic oscillations of the K-doped crystal is consistent with hole doping.},
doi = {10.1103/PhysRevB.100.014437},
journal = {Physical Review B},
number = [1],
volume = [100],
place = {United States},
year = {2019},
month = {7}
}

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