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Ye L, Chan MK, McDonald RD, Graf D, Kang M, Liu J, Suzuki T, Comin R, Fu L, Checkelsky JG. de Haas-van Alphen effect of correlated Dirac states in kagome metal Fe 3Sn 2. Nat Commun 2019; 10:4870. [PMID: 31653866 PMCID: PMC6814717 DOI: 10.1038/s41467-019-12822-1] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 09/30/2019] [Indexed: 11/25/2022] Open
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. The kagome lattice is increasingly known as a host for correlated topological electronic states. Here, Ye et al. report quantum de Haas-van Alphen oscillations of a ferromagnetic kagome material Fe3Sn2, where bulk electronic Dirac fermions are found to be modulated by rotation of the magnetic moment.
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Affiliation(s)
- Linda Ye
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Mun K Chan
- National High Magnetic Field Laboratory, LANL, Los Alamos, NM, 87545, USA
| | - Ross D McDonald
- National High Magnetic Field Laboratory, LANL, Los Alamos, NM, 87545, USA
| | - David Graf
- National High Magnetic Field Laboratory, Tallahassee, FL, 32310, USA
| | - Mingu Kang
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Junwei Liu
- Department of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Takehito Suzuki
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Riccardo Comin
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Liang Fu
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Joseph G Checkelsky
- Department of Physics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA.
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Modic KA, Bachmann MD, Ramshaw BJ, Arnold F, Shirer KR, Estry A, Betts JB, Ghimire NJ, Bauer ED, Schmidt M, Baenitz M, Svanidze E, McDonald RD, Shekhter A, Moll PJW. Resonant torsion magnetometry in anisotropic quantum materials. Nat Commun 2018; 9:3975. [PMID: 30266902 PMCID: PMC6162279 DOI: 10.1038/s41467-018-06412-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 08/29/2018] [Indexed: 11/09/2022] Open
Abstract
Unusual behavior in quantum materials commonly arises from their effective low-dimensional physics, reflecting the underlying anisotropy in the spin and charge degrees of freedom. Here we introduce the magnetotropic coefficient k = ∂2F/∂θ2, the second derivative of the free energy F with respect to the magnetic field orientation θ in the crystal. We show that the magnetotropic coefficient can be quantitatively determined from a shift in the resonant frequency of a commercially available atomic force microscopy cantilever under magnetic field. This detection method enables part per 100 million sensitivity and the ability to measure magnetic anisotropy in nanogram-scale samples, as demonstrated on the Weyl semimetal NbP. Measurement of the magnetotropic coefficient in the spin-liquid candidate RuCl3 highlights its sensitivity to anisotropic phase transitions and allows a quantitative comparison to other thermodynamic coefficients via the Ehrenfest relations.
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Affiliation(s)
- K A Modic
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany.
| | - Maja D Bachmann
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany
| | - B J Ramshaw
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY, 14853, USA
| | - F Arnold
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany
| | - K R Shirer
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany
| | - Amelia Estry
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany
| | - J B Betts
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Nirmal J Ghimire
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.,Argonne National Laboratory, Lemont, IL, 60439, USA
| | - E D Bauer
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - Marcus Schmidt
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany
| | - Michael Baenitz
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany
| | - E Svanidze
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany
| | | | - Arkady Shekhter
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL, 32310, USA
| | - Philip J W Moll
- Max-Planck-Institute for Chemical Physics of Solids, Noethnitzer Strasse 40, D-01187, Dresden, Germany. .,EPFL STI IMX-GE MXC 240, CH-1015, Lausanne, Switzerland.
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Arnold F, Naumann M, Lühmann T, Mackenzie AP, Hassinger E. Application of SQUIDs to low temperature and high magnetic field measurements-Ultra low noise torque magnetometry. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2018; 89:023901. [PMID: 29495810 DOI: 10.1063/1.5011655] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Torque magnetometry is a key method to measure the magnetic anisotropy and quantum oscillations in metals. In order to resolve quantum oscillations in sub-millimeter sized samples, piezo-electric micro-cantilevers were introduced. In the case of strongly correlated metals with large Fermi surfaces and high cyclotron masses, magnetic torque resolving powers in excess of 104 are required at temperatures well below 1 K and magnetic fields beyond 10 T. Here, we present a new broadband read-out scheme for piezo-electric micro-cantilevers via Wheatstone-type resistance measurements in magnetic fields up to 15 T and temperatures down to 200 mK. By using a two-stage superconducting-quantum interference device as a null detector of a cold Wheatstone bridge, we were able to achieve a magnetic moment resolution of Δm = 4 × 10-15 J/T at maximal field and 700 mK, outperforming conventional magnetometers by at least one order of magnitude in this temperature and magnetic field range. Exemplary de Haas-van Alphen measurement of a newly grown delafossite, PdRhO2, was used to show the superior performance of our setup.
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Affiliation(s)
- F Arnold
- Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
| | - M Naumann
- Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
| | - Th Lühmann
- Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
| | - A P Mackenzie
- Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
| | - E Hassinger
- Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany
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Aoki D, Seyfarth G, Pourret A, Gourgout A, McCollam A, Bruin JAN, Krupko Y, Sheikin I. Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn(5). PHYSICAL REVIEW LETTERS 2016; 116:037202. [PMID: 26849611 DOI: 10.1103/physrevlett.116.037202] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Indexed: 06/05/2023]
Abstract
We report high magnetic field measurements of magnetic torque, thermoelectric power, magnetization, and the de Haas-van Alphen effect in CeIrIn_{5} across 28 T, where a metamagnetic transition was suggested in previous studies. The thermoelectric power displays two maxima at 28 and 32 T. Above 28 T, a new, low de Haas-van Alphen frequency with a strongly enhanced effective mass emerges, while the highest frequency observed at low field disappears entirely. This suggests a field-induced Lifshitz transition. However, longitudinal magnetization does not show any anomaly up to 33 T, thus ruling out a metamagnetic transition at 28 T.
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Affiliation(s)
- D Aoki
- Institute for Materials Research, Tohoku University, Oarai, Ibaraki 311-1313, Japan
- Université Grenoble Alpes, INAC-SPSMS, F-38000 Grenoble, France
- CEA, INAC-SPSMS, F-38000 Grenoble, France
| | - G Seyfarth
- Université Grenoble Alpes, LNCMI, 38042 Grenoble, France
- Laboratoire National des Champs Magnéetiques Intenses (LNCMI-EMFL), CNRS, UJF, 38042 Grenoble, France
| | - A Pourret
- Université Grenoble Alpes, INAC-SPSMS, F-38000 Grenoble, France
- CEA, INAC-SPSMS, F-38000 Grenoble, France
| | - A Gourgout
- Université Grenoble Alpes, INAC-SPSMS, F-38000 Grenoble, France
- CEA, INAC-SPSMS, F-38000 Grenoble, France
| | - A McCollam
- High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 ED Nijmegen, The Netherlands
| | - J A N Bruin
- High Field Magnet Laboratory (HFML-EMFL), Radboud University, 6525 ED Nijmegen, The Netherlands
| | - Y Krupko
- Laboratoire National des Champs Magnéetiques Intenses (LNCMI-EMFL), CNRS, UJF, 38042 Grenoble, France
| | - I Sheikin
- Laboratoire National des Champs Magnéetiques Intenses (LNCMI-EMFL), CNRS, UJF, 38042 Grenoble, France
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