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Lei S, Allen K, Huang J, Moya JM, Wu TC, Casas B, Zhang Y, Oh JS, Hashimoto M, Lu D, Denlinger J, Jozwiak C, Bostwick A, Rotenberg E, Balicas L, Birgeneau R, Foster MS, Yi M, Sun Y, Morosan E. Weyl nodal ring states and Landau quantization with very large magnetoresistance in square-net magnet EuGa 4. Nat Commun 2023; 14:5812. [PMID: 37726328 PMCID: PMC10509256 DOI: 10.1038/s41467-023-40767-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/07/2023] [Indexed: 09/21/2023] Open
Abstract
Magnetic topological semimetals allow for an effective control of the topological electronic states by tuning the spin configuration. Among them, Weyl nodal line semimetals are thought to have the greatest tunability, yet they are the least studied experimentally due to the scarcity of material candidates. Here, using a combination of angle-resolved photoemission spectroscopy and quantum oscillation measurements, together with density functional theory calculations, we identify the square-net compound EuGa4 as a magnetic Weyl nodal ring semimetal, in which the line nodes form closed rings near the Fermi level. The Weyl nodal ring states show distinct Landau quantization with clear spin splitting upon application of a magnetic field. At 2 K in a field of 14 T, the transverse magnetoresistance of EuGa4 exceeds 200,000%, which is more than two orders of magnitude larger than that of other known magnetic topological semimetals. Our theoretical model suggests that the non-saturating magnetoresistance up to 40 T arises as a consequence of the nodal ring state.
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Affiliation(s)
- Shiming Lei
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA.
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA.
| | - Kevin Allen
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Jianwei Huang
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Jaime M Moya
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
- Applied Physics Graduate Program, Rice University, Houston, TX, 77005, USA
| | - Tsz Chun Wu
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Brian Casas
- National High Magnetic Field Laboratory, Tallahase, FL, 32310, USA
| | - Yichen Zhang
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Ji Seop Oh
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
- Department of Physics, University of California, Berkeley, CA, 94720, USA
| | - Makoto Hashimoto
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Donghui Lu
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA, 94025, USA
| | - Jonathan Denlinger
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Chris Jozwiak
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Aaron Bostwick
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Eli Rotenberg
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Luis Balicas
- National High Magnetic Field Laboratory, Tallahase, FL, 32310, USA
- Department of Physics, Florida State University, Tallahassee, FL, 32306, USA
| | - Robert Birgeneau
- Department of Physics, University of California, Berkeley, CA, 94720, USA
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Matthew S Foster
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Ming Yi
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA
| | - Yan Sun
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
| | - Emilia Morosan
- Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA.
- Rice Center for Quantum Materials, Rice University, Houston, TX, 77005, USA.
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Greider C, Hopkins N, Steitz J, Amon A, Asai D, Barres B, Bass B, Bassler B, Birgeneau R, Bjorkman P, Botchan M, Brugge J, Cech T, Colwell R, Craig N, deLange T, Eisen M, Gottesman S, Green R, Handelsman J, Kimble J, King MC, Lehmann R, Marder E, Mullins D, O'Shea E, Schmid S, Seydoux G, Spradling A, Storz G, Szostak J, Telesnitsky A, Tilghman S, Tjian R, Vale R, Wolberger C, Zakian V. Not just Salk. Science 2017; 357:1105-1106. [DOI: 10.1126/science.aao6221] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Carol Greider
- Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Nancy Hopkins
- Massacusetts Institute of Technology, Cambridge, MA 02139, USA
| | | | - Angelika Amon
- Massacusetts Institute of Technology, Cambridge, MA 02139, USA
| | - David Asai
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Ben Barres
- Stanford University, Stanford, CA 94305, USA
| | - Brenda Bass
- University of Utah, Salt Lake City, UT 84112, USA
| | | | | | | | | | - Joan Brugge
- Harvard Medical School, Boston, MA 02115, USA
| | - Tom Cech
- University of Colorado Boulder, Boulder, CO 80309, USA
| | - Rita Colwell
- University of Maryland, College Park, MD 20742, USA
| | - Nancy Craig
- Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | | | - Michael Eisen
- University of California Berkeley, Berkeley, CA 94720, USA
| | | | - Rachel Green
- Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | | | | | | | | | - Eve Marder
- Brandeis University, Waltham, MA 01454, USA
| | - Dyche Mullins
- University of California San Francisco, San Francisco, CA 94158, USA
| | - Erin O'Shea
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - Sandra Schmid
- University of Texas Southwestern Medical School, Dallas, TX 75390, USA
| | - Geraldine Seydoux
- Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Allan Spradling
- Carnegie Institution of Washington, Baltimore, MD 21218, USA
| | | | | | | | | | - Robert Tjian
- University of California Berkeley, Berkeley, CA 94720, USA
| | - Ronald Vale
- University of California San Francisco, San Francisco, CA 94158, USA
| | - Cynthia Wolberger
- Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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