The universal characteristics and possible origin of quadrature magnetoresistance

ORAL

Abstract

Recently, quadratic-to-linear magnetoresistance (MR) as a function of magnetic field has emerged as a pervasive phenomenon among strange and quantum critical metals. Examples are the antiferromagnetic quantum critical metal BaFe2(As,P)2 (1), heavy fermion (Yb,La)Rh2Si2 (2) and optimally and overdoped cuprates (Nd-)LSCO (3,4), Tl2201 and Bi2201 (5) as well as electron doped LCCO (6). Given the variety of Fermi surface topologies, dominant interactions and energy scales in these systems, the striking similarity of their magnetic-field response suggests some universal, but as yet unidentified, organizing principle. Here, we critically review the existing literature to establish the universal characteristics defining the phenomenology. We establish distinct features which escape conventional theory as well as single parameter scaling. Second, we propose a new, simple theory based on impeded cyclotron motion which captures not only the quadrature form, but also the universality with which it is observed.

1) Nat. Phys. 12:916-919 (2016)

2) Physica B: Cond. Matt. 378-380:72 (2006)

3) Science 361:6401 (2018)

4) Nature 595:667 (2021)

5) Nature 595:661 (2021)

6) Sci. Adv. 5:5, eaav6753 (2019)

*ERC grant 835279 and ERC grant 715262

–

Publication: 1) R. D. H. Hinlopen et al., B^2 to B-linear magnetoresistance due to impeded cyclotron motion, submitted to Phys. Rev. Res.
2) R. D. H. Hinlopen et al., Power law scaling magnetoresistance in strongly correlated electron systems, in preparation

Presenters

  • Roemer Hinlopen

    • University of Bristol

Authors

  • Roemer Hinlopen

    • University of Bristol

  • Stijn Hinlopen

    • Fudura B.V., Netherlands

  • Jake Ayres

    • H. H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
    • University of Bristol

  • Maarten Berben

    • High Field Magnet Laboratory (HFML-EMFL), Radboud University, Nijmegen, Netherlands.
    • High Field Magnet Laboratory (HFML-EMFL), Netherlands

  • Nigel E Hussey

    • H. H. Wills Physics Laboratory, University of Bristol, Bristol, UK.
    • High Field Magnet Laboratory (HFML-EMFL) and Institute for Molecules and Materials, Radboud University; H. H. Wills Physics Laboratory, University of Bristol
    • University of Bristol, United Kingdom & High Field Magnet Laboratory (HFML-EMFL), Netherlands