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Title: de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2

Abstract

Primarily considered a medium of geometric frustration, there has been a growing recognition of the kagome network as a harbor of lattice-borne topological electronic phases. In this study we report the observation of magnetoquantum de Haas-van Alphen oscillations of the ferromagnetic kagome lattice metal Fe3Sn2. We observe a pair of quasi-two-dimensional Fermi surfaces arising from bulk massive Dirac states and show that these band areas and effective masses are systematically modulated by the rotation of the ferromagnetic moment. Combined with measurements of Berry curvature induced Hall conductivity, our observations suggest that the ferromagnetic Dirac fermions in Fe3Sn2 are subject to intrinsic spin-orbit coupling in the d electron sector which is likely of Kane-Mele type. Our results provide insights for spintronic manipulation of magnetic topological electronic states and pathways to realizing further highly correlated topological materials from the lattice perspective.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [1]; ORCiD logo [4]; ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Dept. of Physics
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States). National High Magnetic Field Lab. (MagLab)
  3. Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Lab. (MagLab)
  4. Hong Kong Univ. (Hong Kong). Dept. of Physics
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
OSTI Identifier:
1624207
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Science & Technology - Other Topics

Citation Formats

Ye, Linda, Chan, Mun K., McDonald, Ross D., Graf, David, Kang, Mingu, Liu, Junwei, Suzuki, Takehito, Comin, Riccardo, Fu, Liang, and Checkelsky, Joseph G. de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2. United States: N. p., 2019. Web. doi:10.1038/s41467-019-12822-1.
Ye, Linda, Chan, Mun K., McDonald, Ross D., Graf, David, Kang, Mingu, Liu, Junwei, Suzuki, Takehito, Comin, Riccardo, Fu, Liang, & Checkelsky, Joseph G. de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2. United States. https://doi.org/10.1038/s41467-019-12822-1
Ye, Linda, Chan, Mun K., McDonald, Ross D., Graf, David, Kang, Mingu, Liu, Junwei, Suzuki, Takehito, Comin, Riccardo, Fu, Liang, and Checkelsky, Joseph G. Fri . "de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2". United States. https://doi.org/10.1038/s41467-019-12822-1. https://www.osti.gov/servlets/purl/1624207.
@article{osti_1624207,
title = {de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe3Sn2},
author = {Ye, Linda and Chan, Mun K. and McDonald, Ross D. and Graf, David and Kang, Mingu and Liu, Junwei and Suzuki, Takehito and Comin, Riccardo and Fu, Liang and Checkelsky, Joseph G.},
abstractNote = {Primarily considered a medium of geometric frustration, there has been a growing recognition of the kagome network as a harbor of lattice-borne topological electronic phases. In this study we report the observation of magnetoquantum de Haas-van Alphen oscillations of the ferromagnetic kagome lattice metal Fe3Sn2. We observe a pair of quasi-two-dimensional Fermi surfaces arising from bulk massive Dirac states and show that these band areas and effective masses are systematically modulated by the rotation of the ferromagnetic moment. Combined with measurements of Berry curvature induced Hall conductivity, our observations suggest that the ferromagnetic Dirac fermions in Fe3Sn2 are subject to intrinsic spin-orbit coupling in the d electron sector which is likely of Kane-Mele type. Our results provide insights for spintronic manipulation of magnetic topological electronic states and pathways to realizing further highly correlated topological materials from the lattice perspective.},
doi = {10.1038/s41467-019-12822-1},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United States},
year = {2019},
month = {10}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Figures / Tables:

Fig. 1 Fig. 1: Pulsed field torque magnetometry and de Haas–van Alphen oscillations in Fe3Sn2. a Three-dimensional crystal structure of Fe3Sn2 showing the Fe kagome bilayers partitioned by stanene honeycomb layers. The blue clusters are defined by the shortest Fe–Fe bonds (<2.55 Å). b Depiction of rotation of the magnetic field frommore » out-of-plane to two inequivalent in-plane principal directions. The angles between the field and c-axis are defined as $θ$1 and $θ$2 in the two rotation planes, respectively. c Magnetic torque $τ$ measured up to 65 T for $θ$1= 15° and 65° with de Haas–van Alphen oscillations observed above ~20 T for $T$= 0.4 K. The inset shows an optical image of the piezoresistive cantilever with one crystal of hexagonal, plate-like Fe3Sn2 (the scale bar is 50 μm). d Oscillatory part of the transverse magnetization $ΔM$T at selected angles at base temperature $T$= 0.5–0.6 K versus inverse magnetic field. The black arrows correspond to the eighth and ninth oscillation of the slow frequency at each angle« less

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.