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Title: Tipping the magnetic instability in paramagnetic S r 3 R u 2 O 7 by Fe impurities [Tipping the magnetic instability in paramagnetic S r 3 R u 2 O 7 by modest Fe substitution]

Abstract

We report the magnetic and electronic properties of the bilayer ruthenate Sr 3Ru 2O 7 upon Fe substitution for Ru. We find that Sr 3(Ru 1-xFe x) 2O 7 shows spin-glass-like phase below 4 K for x = 0.01 and commensurate E-type antiferromagnetically ordered insulating ground state characterized by the propagation vector q c = (0.25 0.25 0) for x ≥ 0.03, in contrast to the paramagnetic metallic state in the parent compound with strong spin fluctuations occurring at wave vectors q = (0.09 0 0) and (0.25 0 0). The observed antiferromagnetic ordering is quasitwo-dimensional with very short correlation length along the c axis, a feature similar to the Mndoped Sr 3Ru 2O 7. Lastly, our results suggest that this ordered ground state is associated with the intrinsic magnetic instability in the pristine compound, which can be readily tipped by the local magnetic coupling between the 3d orbitals of the magnetic dopants and Ru 4d orbitals.

Authors:
 [1];  [2];  [2];  [2];  [3];  [4];  [2];  [1]
  1. Michigan State Univ., East Lansing, MI (United States)
  2. Tulane Univ., New Orleans, LA (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22), Experimental Program to Stimulate Competitive Research (EPSCoR); USDOE
OSTI Identifier:
1363902
Alternate Identifier(s):
OSTI ID: 1357936
Grant/Contract Number:  
AC02-06CH11357; SC0012432
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 17; 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

Citation Formats

Zhu, M., Wang, Y., Li, P. G., Ge, J. J., Tian, W., Keavney, D., Mao, Z. Q., and Ke, X. Tipping the magnetic instability in paramagnetic Sr3Ru2O7 by Fe impurities [Tipping the magnetic instability in paramagnetic Sr3Ru2O7 by modest Fe substitution]. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.174430.
Zhu, M., Wang, Y., Li, P. G., Ge, J. J., Tian, W., Keavney, D., Mao, Z. Q., & Ke, X. Tipping the magnetic instability in paramagnetic Sr3Ru2O7 by Fe impurities [Tipping the magnetic instability in paramagnetic Sr3Ru2O7 by modest Fe substitution]. United States. doi:10.1103/PhysRevB.95.174430.
Zhu, M., Wang, Y., Li, P. G., Ge, J. J., Tian, W., Keavney, D., Mao, Z. Q., and Ke, X. Fri . "Tipping the magnetic instability in paramagnetic Sr3Ru2O7 by Fe impurities [Tipping the magnetic instability in paramagnetic Sr3Ru2O7 by modest Fe substitution]". United States. doi:10.1103/PhysRevB.95.174430. https://www.osti.gov/servlets/purl/1363902.
@article{osti_1363902,
title = {Tipping the magnetic instability in paramagnetic Sr3Ru2O7 by Fe impurities [Tipping the magnetic instability in paramagnetic Sr3Ru2O7 by modest Fe substitution]},
author = {Zhu, M. and Wang, Y. and Li, P. G. and Ge, J. J. and Tian, W. and Keavney, D. and Mao, Z. Q. and Ke, X.},
abstractNote = {We report the magnetic and electronic properties of the bilayer ruthenate Sr3Ru2O7 upon Fe substitution for Ru. We find that Sr3(Ru1-xFex)2O7 shows spin-glass-like phase below 4 K for x = 0.01 and commensurate E-type antiferromagnetically ordered insulating ground state characterized by the propagation vector qc = (0.25 0.25 0) for x ≥ 0.03, in contrast to the paramagnetic metallic state in the parent compound with strong spin fluctuations occurring at wave vectors q = (0.09 0 0) and (0.25 0 0). The observed antiferromagnetic ordering is quasitwo-dimensional with very short correlation length along the c axis, a feature similar to the Mndoped Sr3Ru2O7. Lastly, our results suggest that this ordered ground state is associated with the intrinsic magnetic instability in the pristine compound, which can be readily tipped by the local magnetic coupling between the 3d orbitals of the magnetic dopants and Ru 4d orbitals.},
doi = {10.1103/PhysRevB.95.174430},
journal = {Physical Review B},
number = 17,
volume = 95,
place = {United States},
year = {2017},
month = {5}
}

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