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Title: Mn-induced Ferromagnetic Semiconducting Behavior with Linear Negative Magnetoresistance in Sr 4(Ru 1-xMn x) 3O 10 Single Crystals

Abstract

Triple-layered Sr 4Ru 3O 10 is a unique ferromagnet with the central RuO 6 layer behaving differently from two outer layers both crystallographically and magnetically. Here, we report that the partial substitution of Ru by smaller Mn gives rise to modification in crystal structure, electronic and magnetic properties of Sr 4(Ru 1-xMn x) 3O 10. Through the single crystal X-ray diffraction refinement, we find that (Ru/Mn)O 6 octahedral rotation is no longer detectable at x ≥ 0.23, leading to the tetragonal structure. The magnetization measurements indicate the ferromagnetic transition temperature T C decreases from 105 K for x = 0 to 30 K for x = 0.41, with the reduced magnetic moment as well. Remarkably, Mn doping results in the change of magnetic anisotropy from the easy c axis in x = 0 to the easy ab plane seen in x = 0.34 and 0.41. Such change also removes the ab-plane metamagnetic transition observed in x = 0. Furthermore, the electrical resistivity increases with increasing x showing semiconducting behavior with Δ ~ 10 meV for x = 0.34 and 30 meV for x = 0.41. Under applied magnetic field, the magnetoresistance exhibits negative and linear field dependence in all currentmore » and field configurations. These results clearly indicate Sr 4(Ru 1-xMn x) 3O 10 is a novel ferromagnetic semiconductor with exotic magnetotransport properties.« less

Authors:
 [1];  [2];  [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [4];  [1]
  1. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Physics and Astronomy
  2. Louisiana State Univ., Baton Rouge, LA (United States). Dept. of Chemistry
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Division
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science & Technology Division
Publication Date:
Research Org.:
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; Board of Regents State of Louisiana Research Competitiveness Subprogram (RCS)
OSTI Identifier:
1474446
Grant/Contract Number:  
AC05-00OR22725; SC0016315; LEQSF(2017-20)-RD-A-08
Resource Type:
Accepted Manuscript
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Xing, Lingyi, Gui, Xin, Xie, Weiwei, Cao, Huibo, Yan, Jiaqiang, Sales, Brian C., and Jin, Rongying. Mn-induced Ferromagnetic Semiconducting Behavior with Linear Negative Magnetoresistance in Sr4(Ru1-xMnx)3O10 Single Crystals. United States: N. p., 2018. Web. doi:10.1038/s41598-018-31679-w.
Xing, Lingyi, Gui, Xin, Xie, Weiwei, Cao, Huibo, Yan, Jiaqiang, Sales, Brian C., & Jin, Rongying. Mn-induced Ferromagnetic Semiconducting Behavior with Linear Negative Magnetoresistance in Sr4(Ru1-xMnx)3O10 Single Crystals. United States. doi:10.1038/s41598-018-31679-w.
Xing, Lingyi, Gui, Xin, Xie, Weiwei, Cao, Huibo, Yan, Jiaqiang, Sales, Brian C., and Jin, Rongying. Wed . "Mn-induced Ferromagnetic Semiconducting Behavior with Linear Negative Magnetoresistance in Sr4(Ru1-xMnx)3O10 Single Crystals". United States. doi:10.1038/s41598-018-31679-w. https://www.osti.gov/servlets/purl/1474446.
@article{osti_1474446,
title = {Mn-induced Ferromagnetic Semiconducting Behavior with Linear Negative Magnetoresistance in Sr4(Ru1-xMnx)3O10 Single Crystals},
author = {Xing, Lingyi and Gui, Xin and Xie, Weiwei and Cao, Huibo and Yan, Jiaqiang and Sales, Brian C. and Jin, Rongying},
abstractNote = {Triple-layered Sr4Ru3O10 is a unique ferromagnet with the central RuO6 layer behaving differently from two outer layers both crystallographically and magnetically. Here, we report that the partial substitution of Ru by smaller Mn gives rise to modification in crystal structure, electronic and magnetic properties of Sr4(Ru1-xMnx)3O10. Through the single crystal X-ray diffraction refinement, we find that (Ru/Mn)O6 octahedral rotation is no longer detectable at x ≥ 0.23, leading to the tetragonal structure. The magnetization measurements indicate the ferromagnetic transition temperature TC decreases from 105 K for x = 0 to 30 K for x = 0.41, with the reduced magnetic moment as well. Remarkably, Mn doping results in the change of magnetic anisotropy from the easy c axis in x = 0 to the easy ab plane seen in x = 0.34 and 0.41. Such change also removes the ab-plane metamagnetic transition observed in x = 0. Furthermore, the electrical resistivity increases with increasing x showing semiconducting behavior with Δ ~ 10 meV for x = 0.34 and 30 meV for x = 0.41. Under applied magnetic field, the magnetoresistance exhibits negative and linear field dependence in all current and field configurations. These results clearly indicate Sr4(Ru1-xMnx)3O10 is a novel ferromagnetic semiconductor with exotic magnetotransport properties.},
doi = {10.1038/s41598-018-31679-w},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United States},
year = {2018},
month = {9}
}

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