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Title: Itinerant Antiferromagnetism in FeMnP0.8Si0.2

Abstract

Compounds based on the Fe2P structure have continued to attract interest because of the interplay between itinerant and localized magnetism in a noncentrosymmetric crystal structure, and because of the recent developments of these materials for magnetocaloric applications. We report the growth and characterization of millimeter-sized single crystals of FeMnP0.8Si0.2 with the Fe2P structure. Single-crystal x-ray diffraction, magnetization, resistivity, and Hall and heat capacity data are reported. The crystals exhibit itinerant antiferromagnetic order below 158 K with no hint of ferromagnetic behavior in the magnetization curves and with the spins ordered primarily in the ab plane. The room-temperature resistivity is close to the Ioffe-Regel limit for a metal. Single-crystal x-ray diffraction indicates a strong preference for Mn to occupy the larger pyramidal 3g site. The cation site preference in the as-grown crystals and the antiferromagnetism were not changed after high-temperature anneals and a rapid quench to room temperature

Authors:
 [1];  [1];  [1];  [2];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Critical Materials Institute (CMI)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1224171
Alternate Identifier(s):
OSTI ID: 1224637
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 92; Journal Issue: 10; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Sales, Brian C., Susner, Michael A., Conner, Benjamin S., Yan, Jiaqiang Q., and May, Andrew F. Itinerant Antiferromagnetism in FeMnP0.8Si0.2. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.92.104429.
Sales, Brian C., Susner, Michael A., Conner, Benjamin S., Yan, Jiaqiang Q., & May, Andrew F. Itinerant Antiferromagnetism in FeMnP0.8Si0.2. United States. https://doi.org/10.1103/PhysRevB.92.104429
Sales, Brian C., Susner, Michael A., Conner, Benjamin S., Yan, Jiaqiang Q., and May, Andrew F. Fri . "Itinerant Antiferromagnetism in FeMnP0.8Si0.2". United States. https://doi.org/10.1103/PhysRevB.92.104429. https://www.osti.gov/servlets/purl/1224171.
@article{osti_1224171,
title = {Itinerant Antiferromagnetism in FeMnP0.8Si0.2},
author = {Sales, Brian C. and Susner, Michael A. and Conner, Benjamin S. and Yan, Jiaqiang Q. and May, Andrew F.},
abstractNote = {Compounds based on the Fe2P structure have continued to attract interest because of the interplay between itinerant and localized magnetism in a noncentrosymmetric crystal structure, and because of the recent developments of these materials for magnetocaloric applications. We report the growth and characterization of millimeter-sized single crystals of FeMnP0.8Si0.2 with the Fe2P structure. Single-crystal x-ray diffraction, magnetization, resistivity, and Hall and heat capacity data are reported. The crystals exhibit itinerant antiferromagnetic order below 158 K with no hint of ferromagnetic behavior in the magnetization curves and with the spins ordered primarily in the ab plane. The room-temperature resistivity is close to the Ioffe-Regel limit for a metal. Single-crystal x-ray diffraction indicates a strong preference for Mn to occupy the larger pyramidal 3g site. The cation site preference in the as-grown crystals and the antiferromagnetism were not changed after high-temperature anneals and a rapid quench to room temperature},
doi = {10.1103/PhysRevB.92.104429},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 10,
volume = 92,
place = {United States},
year = {Fri Sep 25 00:00:00 EDT 2015},
month = {Fri Sep 25 00:00:00 EDT 2015}
}

Journal Article:

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Cited by: 4 works
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Figures / Tables:

FIG. 1 FIG. 1: Crystal structure of FeMnP0.8Si0.2. View along the (001) direction (a), and view along (110) direction (b) The small P (Si) atoms are blue, the medium Fe atoms are red and the largest Mn atoms are yellow. The structure is drawn with Mn fully occupying the pyramidal (3g )more » site and Fe the (3f ) tetrahedral site, consistent with the single crystal refinement results shown in Table I. (c) A 5 mm long single crystal of FeMnP0.8Si0.2 with electrical leads attached.« less

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.