Search Menu
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information
Search Scholarly Publications

Title: Giant room temperature anomalous Hall effect and tunable topology in a ferromagnetic topological semimetal Co2MnAl

Abstract

Weyl semimetals exhibit unusual surface states and anomalous transport phenomena. It is hard to manipulate the band structure topology of specific Weyl materials. Topological transport phenomena usually appear at very low temperatures, which sets challenges for applications. In this work, we demonstrate the band topology modification via a weak magnetic field in a ferromagnetic Weyl semimetal candidate, Co2MnAl, at room temperature. We observe a tunable, giant anomalous Hall effect (AHE) induced by the transition involving Weyl points and nodal rings. The AHE conductivity is as large as that of a 3D quantum AHE, with the Hall angle (ΘH) reaching a record value (tan ΘH = 0.21) at the room temperature among magnetic conductors. Furthermore, we propose a material recipe to generate large AHE by gaping nodal rings without requiring Weyl points. Our work reveals an intrinsically magnetic platform to explore the interplay between magnetic dynamics and topological physics for developing spintronic devices.

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [7];  [7];  [5]; ORCiD logo [3]; ORCiD logo [7]; ORCiD logo [2]
+ Show Author Affiliations
  1. Tulane Univ., New Orleans, LA (United States). Dept. of Physics and Engineering Physics
  2. Weizmann Inst. of Science, Rehovot (Israel). Dept. of Condensed Matter Physics
  3. Pennsylvania State Univ., University Park, PA (United States). Dept. of Physics
  4. Chinese Academy of Sciences (CAS), Shenyang (China). Superalloys Division. Inst. of Metal Research
  5. Pennsylvania State Univ., University Park, PA (United States). Dept. of Materials Science and Engineering
  6. Pennsylvania State Univ., University Park, PA (United States). Dept. of Physics. Dept. of Materials Science and Engineering
  7. Tulane Univ., New Orleans, LA (United States). Dept. of Physics and Engineering Physics; Pennsylvania State Univ., University Park, PA (United States). Dept. of Physics
Publication Date:
Research Org.:
Pennsylvania State Univ., University Park, PA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1647304
Grant/Contract Number:  
SC0019064
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 11; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Li, Peigang, Koo, Jahyun, Ning, Wei, Li, Jinguo, Miao, Leixin, Min, Lujin, Zhu, Yanglin, Wang, Yu, Alem, Nasim, Liu, Chao-Xing, Mao, Zhiqiang, and Yan, Binghai. Giant room temperature anomalous Hall effect and tunable topology in a ferromagnetic topological semimetal Co2MnAl. United States: N. p., 2020. Web. doi:10.1038/s41467-020-17174-9.
Copy to clipboard
Li, Peigang, Koo, Jahyun, Ning, Wei, Li, Jinguo, Miao, Leixin, Min, Lujin, Zhu, Yanglin, Wang, Yu, Alem, Nasim, Liu, Chao-Xing, Mao, Zhiqiang, & Yan, Binghai. Giant room temperature anomalous Hall effect and tunable topology in a ferromagnetic topological semimetal Co2MnAl. United States. https://doi.org/10.1038/s41467-020-17174-9
Copy to clipboard
Li, Peigang, Koo, Jahyun, Ning, Wei, Li, Jinguo, Miao, Leixin, Min, Lujin, Zhu, Yanglin, Wang, Yu, Alem, Nasim, Liu, Chao-Xing, Mao, Zhiqiang, and Yan, Binghai. Fri . "Giant room temperature anomalous Hall effect and tunable topology in a ferromagnetic topological semimetal Co2MnAl". United States. https://doi.org/10.1038/s41467-020-17174-9. https://www.osti.gov/servlets/purl/1647304.
Copy to clipboard
@article{osti_1647304,
title = {Giant room temperature anomalous Hall effect and tunable topology in a ferromagnetic topological semimetal Co2MnAl},
author = {Li, Peigang and Koo, Jahyun and Ning, Wei and Li, Jinguo and Miao, Leixin and Min, Lujin and Zhu, Yanglin and Wang, Yu and Alem, Nasim and Liu, Chao-Xing and Mao, Zhiqiang and Yan, Binghai},
abstractNote = {Weyl semimetals exhibit unusual surface states and anomalous transport phenomena. It is hard to manipulate the band structure topology of specific Weyl materials. Topological transport phenomena usually appear at very low temperatures, which sets challenges for applications. In this work, we demonstrate the band topology modification via a weak magnetic field in a ferromagnetic Weyl semimetal candidate, Co2MnAl, at room temperature. We observe a tunable, giant anomalous Hall effect (AHE) induced by the transition involving Weyl points and nodal rings. The AHE conductivity is as large as that of a 3D quantum AHE, with the Hall angle (ΘH) reaching a record value (tan ΘH = 0.21) at the room temperature among magnetic conductors. Furthermore, we propose a material recipe to generate large AHE by gaping nodal rings without requiring Weyl points. Our work reveals an intrinsically magnetic platform to explore the interplay between magnetic dynamics and topological physics for developing spintronic devices.},
doi = {10.1038/s41467-020-17174-9},
journal = {Nature Communications},
number = 1,
volume = 11,
place = {United States},
year = {Fri Jul 10 00:00:00 EDT 2020},
month = {Fri Jul 10 00:00:00 EDT 2020}
}
Copy to clipboard
Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1038/s41467-020-17174-9
Copyright Statement
Other availability
Search WorldCat Search WorldCat to find libraries that may hold this journal
Citation Metrics:
Cited by: 81 works
Citation information provided by
Web of Science
Save / Share:
Export Metadata
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.

Works referenced in this record:

Evidence for magnetic Weyl fermions in a correlated metal
journal, September 2017

  • Kuroda, K.; Tomita, T.; Suzuki, M. -T.
  • Nature Materials, Vol. 16, Issue 11
  • DOI: 10.1038/nmat4987

Generalized Gradient Approximation Made Simple
journal, October 1996

  • Perdew, John P.; Burke, Kieron; Ernzerhof, Matthias
  • Physical Review Letters, Vol. 77, Issue 18, p. 3865-3868
  • DOI: 10.1103/PhysRevLett.77.3865

Landau level quantization and almost flat modes in three-dimensional semimetals with nodal ring spectra
journal, July 2015

Fermi-arc diversity on surface terminations of the magnetic Weyl semimetal Co 3 Sn 2 S 2
journal, September 2019

Giant anomalous Hall effect in a ferromagnetic kagome-lattice semimetal
journal, July 2018

Topological Materials: Weyl Semimetals
journal, March 2017

Giant anomalous Nernst effect and quantum-critical scaling in a ferromagnetic semimetal
journal, July 2018

Large anomalous Hall effect in a half-Heusler antiferromagnet
journal, July 2016

  • Suzuki, T.; Chisnell, R.; Devarakonda, A.
  • Nature Physics, Vol. 12, Issue 12
  • DOI: 10.1038/nphys3831

Exploring Co 2 MnAl Heusler compound for anomalous Hall effect sensors
journal, September 2011

  • Vilanova Vidal, E.; Stryganyuk, G.; Schneider, H.
  • Applied Physics Letters, Vol. 99, Issue 13
  • DOI: 10.1063/1.3644157

Experimental observation of topological Fermi arcs in type-II Weyl semimetal MoTe2
journal, September 2016

  • Deng, Ke; Wan, Guoliang; Deng, Peng
  • Nature Physics, Vol. 12, Issue 12
  • DOI: 10.1038/nphys3871

Topological nodal semimetals
journal, December 2011

Weyl fermions induced magnon electrodynamics in a Weyl semimetal
journal, October 2014

Chiral Anomaly as the Origin of the Planar Hall Effect in Weyl Semimetals
journal, October 2017

Weyl points in the ferromagnetic Heusler compound Co 2 MnAl
journal, May 2016

Drumhead surface states and topological nodal-line fermions in TlTaSe 2
journal, March 2016

Chiral gauge field and axial anomaly in a Weyl semimetal
journal, June 2013

Topological Hopf and Chain Link Semimetal States and Their Application to Co 2 Mn G a
journal, October 2017

Momentum-space and real-space Berry curvatures in Mn$_{3}$Sn
journal, January 2018

Topological Weyl semimetals in the chiral antiferromagnetic materials Mn 3 Ge and Mn 3 Sn
journal, January 2017

Weyl semimetal phase in the non-centrosymmetric compound TaAs
journal, August 2015

  • Yang, L. X.; Liu, Z. K.; Sun, Y.
  • Nature Physics, Vol. 11, Issue 9
  • DOI: 10.1038/nphys3425

Giant planar Hall effect in topological metals
journal, July 2017

Recent developments in transport phenomena in Weyl semimetals
journal, November 2013

Quantum Hall effects in a Weyl semimetal: Possible application in pyrochlore iridates
journal, August 2011

Topological nodal line semimetals
journal, November 2016

Full-potential nonorthogonal local-orbital minimum-basis band-structure scheme
journal, January 1999

Anomalous Hall effect
journal, May 2010

Large tunnel magnetoresistance in magnetic tunnel junctions using Co 2 MnX (X = Al, Si) Heusler alloys
journal, February 2006

Weyl and Dirac semimetals in three-dimensional solids
journal, January 2018

Type-II Weyl semimetals
journal, November 2015

  • Soluyanov, Alexey A.; Gresch, Dominik; Wang, Zhijun
  • Nature, Vol. 527, Issue 7579
  • DOI: 10.1038/nature15768

Large anomalous Hall effect in a non-collinear antiferromagnet at room temperature
journal, October 2015

  • Nakatsuji, Satoru; Kiyohara, Naoki; Higo, Tomoya
  • Nature, Vol. 527, Issue 7577
  • DOI: 10.1038/nature15723

Berry curvature and the anomalous Hall effect in Heusler compounds
journal, January 2012

Heusler, Weyl and Berry
journal, July 2018

Absence of neutrinos on a lattice
journal, July 1981

Planar Hall Effect in Ferromagnetic Films
journal, January 1968

Topological nodal line semimetals with and without spin-orbital coupling
journal, August 2015

Curved spacetime theory of inhomogeneous Weyl materials
journal, October 2019

Classification of reflection-symmetry-protected topological semimetals and nodal superconductors
journal, November 2014

Large anomalous Hall effect driven by a nonvanishing Berry curvature in the noncolinear antiferromagnet Mn 3 Ge
journal, April 2016

  • Nayak, Ajaya K.; Fischer, Julia Erika; Sun, Yan
  • Science Advances, Vol. 2, Issue 4
  • DOI: 10.1126/sciadv.1501870

Nodal-link semimetals
journal, July 2017

Large anomalous Hall current induced by topological nodal lines in a ferromagnetic van der Waals semimetal
journal, July 2018

Discovery of a Weyl fermion semimetal and topological Fermi arcs
journal, July 2015

Zero‐Field Nernst Effect in a Ferromagnetic Kagome‐Lattice Weyl‐Semimetal Co 3 Sn 2 S 2
journal, April 2019

The Adler-Bell-Jackiw anomaly and Weyl fermions in a crystal
journal, November 1983

On the Surface States Associated with a Periodic Potential
journal, August 1939

Discovery of topological Weyl fermion lines and drumhead surface states in a room temperature magnet
journal, September 2019

Anomalous magnetic properties and Hall effect in ferromagnetic Co2MnAl epilayers
journal, May 2004

  • Chen, Y. J.; Basiaga, D.; O’Brien, J. R.
  • Applied Physics Letters, Vol. 84, Issue 21
  • DOI: 10.1063/1.1755842

Magnetic properties and stability of L21 and B2 phases in the Co2MnAl Heusler alloy
journal, April 2008

  • Umetsu, R. Y.; Kobayashi, K.; Fujita, A.
  • Journal of Applied Physics, Vol. 103, Issue 7
  • DOI: 10.1063/1.2836677

Phase Diagram of a Magnetic Topological Nodal Semimetal: Stable Nodal Line in an Easy-Plane Ferromagnet
journal, November 2019

  • Ominato, Yuya; Yamakage, Ai; Nomura, Kentaro
  • Journal of the Physical Society of Japan, Vol. 88, Issue 11
  • DOI: 10.7566/JPSJ.88.114701

Berry phase effects on electronic properties
journal, July 2010

Topological semimetal and Fermi-arc surface states in the electronic structure of pyrochlore iridates
journal, May 2011

Anomalous Hall Effect in Weyl Metals
journal, October 2014

    Sort by:
    [ × clear filter / sort ]

    Similar Records in DOE PAGES and OSTI.GOV collections: