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Title: Manganese-induced magnetic symmetry breaking and its correlation with the metal-insulator transition in bilayered S r 3 ( R u 1 - x M n x ) 2 O 7

Abstract

Bilayered Sr 3Ru 2O 7 is an unusual metamagnetic metal with inherently antiferromagnetic (AFM) and ferromagnetic (FM) fluctuations. Partial substitution of Ru by Mn results in the establishment of a metal-insulator transition (MIT) at TMIT and AFM ordering at TM in Sr 3(Ru 1-xMn x) 2O 7. Using elastic neutron scattering, we investigated the effect of Mn doping on the magnetic structure, in-plane magnetic correlation lengths and their correlation to the MIT in Sr 3(Ru 1-xMn x) 2O 7 (x=0.06 and 0.12). With the increase of Mn doping (x) from 0.06 to 0.12 or the decrease of temperatures for x=0.12, an evolution from an in-plane short-range to long-range antiferromagnetic (AFM) ground state occurs. For both compounds, the magnetic ordering has a double-stripe configuration, and the onset of magnetic correlation with an anisotropic behavior coincides with the sharp rise in electrical resistivity and specific heat. Since it does not induce a measurable lattice distortion, the double-stripe antiferromagnetic order with anisotropic spin texture breaks symmetry from a C 4v crystal lattice to a C 2v magnetic sublattice. These observations shed light on an age-old question regarding the Slater versus Mott-type MIT.

Authors:
 [1];  [2];  [2];  [2];  [2];  [3];  [3];  [2];  [3];  [3];  [3]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Louisiana State Univ., Baton Rouge, LA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. Louisiana State Univ., Baton Rouge, LA (United States)
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)
OSTI Identifier:
1427668
Alternate Identifier(s):
OSTI ID: 1363712; OSTI ID: 1468143
Grant/Contract Number:  
AC05-00OR22725; SC0012432
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 95; Journal Issue: 22; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Zhang, Qiang, Ye, Feng, Tian, Wei, Cao, Huibo, Chi, Songxue, Hu, Biao, Diao, Zhenyu, Tennant, David A., Jin, Rongying, Zhang, Jiandi, and Plummer, Ward. Manganese-induced magnetic symmetry breaking and its correlation with the metal-insulator transition in bilayered Sr3(Ru1-xMnx)2O7. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.220403.
Zhang, Qiang, Ye, Feng, Tian, Wei, Cao, Huibo, Chi, Songxue, Hu, Biao, Diao, Zhenyu, Tennant, David A., Jin, Rongying, Zhang, Jiandi, & Plummer, Ward. Manganese-induced magnetic symmetry breaking and its correlation with the metal-insulator transition in bilayered Sr3(Ru1-xMnx)2O7. United States. doi:10.1103/PhysRevB.95.220403.
Zhang, Qiang, Ye, Feng, Tian, Wei, Cao, Huibo, Chi, Songxue, Hu, Biao, Diao, Zhenyu, Tennant, David A., Jin, Rongying, Zhang, Jiandi, and Plummer, Ward. Mon . "Manganese-induced magnetic symmetry breaking and its correlation with the metal-insulator transition in bilayered Sr3(Ru1-xMnx)2O7". United States. doi:10.1103/PhysRevB.95.220403. https://www.osti.gov/servlets/purl/1427668.
@article{osti_1427668,
title = {Manganese-induced magnetic symmetry breaking and its correlation with the metal-insulator transition in bilayered Sr3(Ru1-xMnx)2O7},
author = {Zhang, Qiang and Ye, Feng and Tian, Wei and Cao, Huibo and Chi, Songxue and Hu, Biao and Diao, Zhenyu and Tennant, David A. and Jin, Rongying and Zhang, Jiandi and Plummer, Ward},
abstractNote = {Bilayered Sr3Ru2O7 is an unusual metamagnetic metal with inherently antiferromagnetic (AFM) and ferromagnetic (FM) fluctuations. Partial substitution of Ru by Mn results in the establishment of a metal-insulator transition (MIT) at TMIT and AFM ordering at TM in Sr3(Ru1-xMnx)2O7. Using elastic neutron scattering, we investigated the effect of Mn doping on the magnetic structure, in-plane magnetic correlation lengths and their correlation to the MIT in Sr3(Ru1-xMnx)2O7 (x=0.06 and 0.12). With the increase of Mn doping (x) from 0.06 to 0.12 or the decrease of temperatures for x=0.12, an evolution from an in-plane short-range to long-range antiferromagnetic (AFM) ground state occurs. For both compounds, the magnetic ordering has a double-stripe configuration, and the onset of magnetic correlation with an anisotropic behavior coincides with the sharp rise in electrical resistivity and specific heat. Since it does not induce a measurable lattice distortion, the double-stripe antiferromagnetic order with anisotropic spin texture breaks symmetry from a C4v crystal lattice to a C2v magnetic sublattice. These observations shed light on an age-old question regarding the Slater versus Mott-type MIT.},
doi = {10.1103/PhysRevB.95.220403},
journal = {Physical Review B},
number = 22,
volume = 95,
place = {United States},
year = {2017},
month = {6}
}

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