Title: Magnetic-Field Control of Topological Electronic Response near Room Temperature in Correlated Kagome Magnets

Abstract

Strongly correlated kagome magnets are promising candidates for achieving controllable topological devices owing to the rich interplay between inherent Dirac fermions and correlation-driven magnetism. Here we report tunable local magnetism and its intriguing control of topological electronic response near room temperature in the kagome magnet Fe_{3}Sn_{2} using small angle neutron scattering, muon spin rotation, and magnetoresistivity measurement techniques. The average bulk spin direction and magnetic domain texture can be tuned effectively by small magnetic fields. Magnetoresistivity, in response, exhibits a measurable degree of anisotropic weak localization behavior, which allows the direct control of Dirac fermions with strong electron correlations. Our work points to a novel platform for manipulating emergent phenomena in strongly correlated topological materials relevant to future applications.

Authors:

Li, Yangmu  ^[1];

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• Search DOE PAGES for ORCID "0000-0003-0886-2919"

Wang, Qi ^[2]; DeBeer-Schmitt, Lisa M.  ^[3];

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• Search DOE PAGES for ORCID "0000-0001-9679-3444"

Guguchia, Zurab ^[4]; Desautels, Ryan D. ^[3]; Yin, Jia -Xin ^[5]; Du, Qianheng  ^[6];

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• Search DOE PAGES for ORCID "0000-0002-8117-8489"

Ren, Weijun  ^[7];

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• Search DOE PAGES for ORCID "0000-0003-2894-7442"

Zhao, Xinguo  ^[8];

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Zhang, Zhidong  ^[8];

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Zaliznyak, Igor A.  ^[1];

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Petrovic, Cedomir ^[6]; Yin, Weiguo  ^[1];

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Hasan, M. Zahid ^[9]; Lei, Hechang ^[2]; Tranquada, John M.  ^[1]

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• Search DOE PAGES for ORCID "0000-0003-4984-8857"

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+ Show Author Affiliations

1. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Div.
2. Renmin Univ. of China, Beijing (China). Dept. of Physics and Beijing Key Lab. of Opto-electronic Functional Materials & Micro-nano Devices
3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Div.
4. Princeton Univ., Princeton, NJ (United States). Lab. for Topological Quantum Matter and Advanced Spectroscopy, Dept. of Physics; Paul Scherrer Inst. (PSI), Villigen (Switzerland). Lab. for Muon Spin Spectroscopy
5. Princeton Univ., Princeton, NJ (United States). Lab. for Topological Quantum Matter and Advanced Spectroscopy, Dept. of Physics
6. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Div.; Stony Brook Univ., Stony Brook, NY (United States). Materials Science and Chemical Engineering Dept.
7. Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Div.; Chinese Academy of Sciences, Shenyang (China). Shenyang National Lab. for Materials Science, Institute of Metal Research
8. Chinese Academy of Sciences, Shenyang (China). Shenyang National Lab. for Materials Science, Institute of Metal Research
9. Princeton Univ., Princeton, NJ (United States). Lab. for Topological Quantum Matter and Advanced Spectroscopy, Dept. of Physics; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Div.

Publication Date:

Fri Nov 08 00:00:00 EST 2019

Research Org.:

Brookhaven National Laboratory (BNL), Upton, NY (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR); Princeton Univ., NJ (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:

USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Key Research and Development Program of China; National Natural Science Foundation of China (NSFC); Fundamental Research Funds for the Central Universities; Renmin University of China; University of California at Berkeley; California Institute of Technology

OSTI Identifier:

1574122

Alternate Identifier(s):

OSTI ID: 1606793; OSTI ID: 1638199

Report Number(s):

BNL-212320-2019-JAAM
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US2100170

Grant/Contract Number:  

AC02-05CH11231; SC0012704; AC05-00OR22725; 2016YFA0300504; 11574394; 11774423; 11822412; 9XNLG17; 15XNLQ07; 18XNLG14; 5161192; 2017YFA0206302; FG02-05ER46200

Resource Type:

Accepted Manuscript

Journal Name:

Physical Review Letters

Additional Journal Information:

Journal Volume: 123; Journal Issue: 19; Journal ID: ISSN 0031-9007

Publisher:

American Physical Society (APS)

Country of Publication:

United States

Language:

English

Subject:

75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY