Magnetic-Field Control of Topological Electronic Response near Room Temperature in Correlated Kagome Magnets
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Div.
- Renmin Univ. of China, Beijing (China). Dept. of Physics and Beijing Key Lab. of Opto-electronic Functional Materials & Micro-nano Devices
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Neutron Scattering Div.
- 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
- Princeton Univ., Princeton, NJ (United States). Lab. for Topological Quantum Matter and Advanced Spectroscopy, Dept. of Physics
- 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.
- 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
- Chinese Academy of Sciences, Shenyang (China). Shenyang National Lab. for Materials Science, Institute of Metal Research
- 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.
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.
- Research Organization:
- 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 Organization:
- 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
- Grant/Contract Number:
- AC02-05CH11231; SC0012704; AC05-00OR22725; 2016YFA0300504; 11574394; 11774423; 11822412; 9XNLG17; 15XNLQ07; 18XNLG14; 5161192; 2017YFA0206302; FG02-05ER46200
- OSTI ID:
- 1574122
- Alternate ID(s):
- OSTI ID: 1606793; OSTI ID: 1638199
- Report Number(s):
- BNL-212320-2019-JAAM; PRLTAO; TRN: US2100170
- Journal Information:
- Physical Review Letters, Vol. 123, Issue 19; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Magnetotransport as a diagnostic of spin reorientation: Kagome ferromagnet as a case study
|
journal | December 2019 |
How correlations change the magnetic structure factor of the kagome Hubbard model
|
journal | October 2021 |
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