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Rotation of the magnetic vortex lattice in Ru7B3 driven by the effects of broken time-reversal and inversion symmetry

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Cameron, A. S., Yerin, Y. S., Tymoshenko, Y. V., Portnichenko, P. Y., Sukhanov, A. S., Ciomaga Hatnean, Monica, Paul, Don McK., Balakrishnan, Geetha, Cubitt, R., Heinemann, A. and Inosov, D. S. (2019) Rotation of the magnetic vortex lattice in Ru7B3 driven by the effects of broken time-reversal and inversion symmetry. Physical Review B, 100 (2). 024518. doi:10.1103/PhysRevB.100.024518 ISSN 2469-9950.

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Official URL: http://dx.doi.org/10.1103/PhysRevB.100.024518

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Abstract

We observe a hysteretic reorientation of the magnetic vortex lattice in the noncentrosymmetric superconductor Ru7B3, with the change in orientation driven by altering the magnetic field below Tc. Normally a vortex lattice chooses either a single or degenerate set of orientations with respect to a crystal lattice at any given field or temperature, a behavior well described by prevailing phenomenological and microscopic theories. Here, in the absence of any typical VL structural transition, we observe a continuous rotation of the vortex lattice which exhibits a pronounced hysteresis and is driven by a change in magnetic field. We propose that this rotation is related to the spontaneous magnetic fields present in the superconducting phase, which are evidenced by the observation of time-reversal symmetry breaking, and the physics of broken inversion symmetry. Finally, we develop a model from the Ginzburg-Landau approach which shows that the coupling of these to the vortex lattice orientation can result in the rotation we observe.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Divisions: Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH): Superconductors, Condensed matter, Aerodynamics, Magnetoresistance, Magnetism, Quantum theory
Journal or Publication Title: Physical Review B
Publisher: American Physical Society
ISSN: 2469-9950
Official Date: 1 July 2019
Dates:
DateEvent
1 July 2019Published
26 July 2019Available
26 April 2019Accepted
9 October 2018Submitted
Volume: 100
Number: 2
Article Number: 024518
DOI: 10.1103/PhysRevB.100.024518
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Copyright Holders: © 2019 American Physical Society
Date of first compliant deposit: 1 August 2019
Date of first compliant Open Access: 5 August 2019
Grant number: EP/M028771/1
RIOXX Funder/Project Grant:
Project/Grant IDRIOXX Funder NameFunder ID
IN 209/3-2[DFG] Deutsche Forschungsgemeinschafthttp://dx.doi.org/10.13039/501100001659
IN 209/6-1[DFG] Deutsche Forschungsgemeinschafthttp://dx.doi.org/10.13039/501100001659
UNSPECIFIED[DFG] Deutsche Forschungsgemeinschafthttp://dx.doi.org/10.13039/501100001659
UNSPECIFIEDInternational Max Planck Research School for Chemistry and Physics of Quantum MaterialsUNSPECIFIED
EP/M028771/1[EPSRC] Engineering and Physical Sciences Research Councilhttp://dx.doi.org/10.13039/501100000266

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