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Campbell DJ, Frachet M, Benhabib S, Gilmutdinov I, Proust C, Kurosawa T, Momono N, Oda M, Horio M, Kramer K, Chang J, Ichioka M, LeBoeuf D. Evidence for a Square-Square Vortex Lattice Transition in a High-T_{c} Cuprate Superconductor. PHYSICAL REVIEW LETTERS 2022; 129:067001. [PMID: 36018650 DOI: 10.1103/physrevlett.129.067001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 03/01/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Using sound velocity and attenuation measurements in high magnetic fields, we identify a new transition in the vortex lattice state of La_{2-x}Sr_{x}CuO_{4}. The transition, observed in magnetic fields exceeding 35 T and temperatures far below zero field T_{c}, is detected in the compression modulus of the vortex lattice, at a doping level of x=p=0.17. Our theoretical analysis based on Eilenberger's theory of the vortex lattice shows that the transition corresponds to the long-sought 45° rotation of the square vortex lattice, predicted to occur in d-wave superconductors near a van Hove singularity.
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Affiliation(s)
- D J Campbell
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - M Frachet
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - S Benhabib
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - I Gilmutdinov
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - C Proust
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
| | - T Kurosawa
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - N Momono
- Muroran Institute of Technology, Muroran 050-8585, Japan
| | - M Oda
- Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
| | - M Horio
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - K Kramer
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - J Chang
- Physik-Institut, Universität Zürich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - M Ichioka
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - D LeBoeuf
- LNCMI-EMFL, CNRS UPR3228, Université Grenoble Alpes, Université de Toulouse, Université de Toulouse 3, INSA-T, Grenoble and Toulouse, France
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