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Title: Magnetostructural behavior in the non-centrosymmetric compound Nd 7Pd 3

Abstract

A systematic study of the physical properties and microscopic magnetism of Nd 7Pd 3 compound, which in the paramagnetic state crystallizes in the non-centrosymmetric hexagonal Th 7Fe 3-type structure [hP20-P6 3mc; with a = 10.1367(1) Å and c = 6.3847(1) Å at 300 K], confirms multiple magnetic ordering transitions that occur upon cooling. Antiferromagnetic transition is observed at T N = 37 K, which is followed by ferromagnetic transformation at T C = 33 K. The first-order magnetic transition at TC is magnetoelastic: it involves a change of crystal symmetry from P6 3mc to Cmc2 1 and leads to anisotropic changes of the unit cell parameters. While the antiferromagnetic structure is symmetry allowed in P6 3mc, the ferromagnetic structure with magnetic moments along the a-direction of the original hexagonal unit cell induces the first order transition to Cmc21. Density functional theory calculations confirm the experimentally observed ground state with the a-axis as the easy magnetization direction.

Authors:
ORCiD logo [1];  [2];  [1];  [3];  [4];  [3]; ORCiD logo [5]; ORCiD logo [6]
  1. Ames Lab., Ames, IA (United States)
  2. Inst. Laue-Langevin (ILL), Grenoble (France)
  3. Univ. of Genova (Italy); National Research Council (CNR), Genova (Italy). Inst. for Superconductors, Innovative Materials and Devices (CNR-SPIN)
  4. Tata Inst. of Fundamental Research, Mumbai (India)
  5. CELLS-ALBA Synchrotron Light Facility, Barcelona (Spain)
  6. Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1509485
Report Number(s):
IS-J-9894
Journal ID: ISSN 0953-8984
Grant/Contract Number:  
AC02-07CH11358; 11104247; 11304279; 51271149; 51671160; LY18E010007
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Physics. Condensed Matter
Additional Journal Information:
Journal Volume: 31; Journal Issue: 26; Journal ID: ISSN 0953-8984
Publisher:
IOP Publishing
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Mudryk, Y., Ritter, C., Paudyal, D., Provino, A., Dhar, S. K., Manfrinetti, P., Fauth, F., and Pecharsky, V. K. Magnetostructural behavior in the non-centrosymmetric compound Nd7Pd3. United States: N. p., 2019. Web. doi:10.1088/1361-648X/ab1192.
Mudryk, Y., Ritter, C., Paudyal, D., Provino, A., Dhar, S. K., Manfrinetti, P., Fauth, F., & Pecharsky, V. K. Magnetostructural behavior in the non-centrosymmetric compound Nd7Pd3. United States. doi:10.1088/1361-648X/ab1192.
Mudryk, Y., Ritter, C., Paudyal, D., Provino, A., Dhar, S. K., Manfrinetti, P., Fauth, F., and Pecharsky, V. K. Fri . "Magnetostructural behavior in the non-centrosymmetric compound Nd7Pd3". United States. doi:10.1088/1361-648X/ab1192.
@article{osti_1509485,
title = {Magnetostructural behavior in the non-centrosymmetric compound Nd7Pd3},
author = {Mudryk, Y. and Ritter, C. and Paudyal, D. and Provino, A. and Dhar, S. K. and Manfrinetti, P. and Fauth, F. and Pecharsky, V. K.},
abstractNote = {A systematic study of the physical properties and microscopic magnetism of Nd7Pd3 compound, which in the paramagnetic state crystallizes in the non-centrosymmetric hexagonal Th7Fe3-type structure [hP20-P63mc; with a = 10.1367(1) Å and c = 6.3847(1) Å at 300 K], confirms multiple magnetic ordering transitions that occur upon cooling. Antiferromagnetic transition is observed at TN = 37 K, which is followed by ferromagnetic transformation at TC = 33 K. The first-order magnetic transition at TC is magnetoelastic: it involves a change of crystal symmetry from P63mc to Cmc21 and leads to anisotropic changes of the unit cell parameters. While the antiferromagnetic structure is symmetry allowed in P63mc, the ferromagnetic structure with magnetic moments along the a-direction of the original hexagonal unit cell induces the first order transition to Cmc21. Density functional theory calculations confirm the experimentally observed ground state with the a-axis as the easy magnetization direction.},
doi = {10.1088/1361-648X/ab1192},
journal = {Journal of Physics. Condensed Matter},
number = 26,
volume = 31,
place = {United States},
year = {2019},
month = {4}
}

Journal Article:
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This content will become publicly available on April 12, 2020
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