TY - JOUR
T1 - Evidence for a Square-Square Vortex Lattice Transition in a High- Tc Cuprate Superconductor
AU - Campbell, D. J.
AU - Frachet, M.
AU - Benhabib, S.
AU - Gilmutdinov, I.
AU - Proust, C.
AU - Kurosawa, T.
AU - Momono, N.
AU - Oda, M.
AU - Horio, M.
AU - Kramer, K.
AU - Chang, J.
AU - Ichioka, M.
AU - Leboeuf, D.
N1 - Funding Information:
We thank E. M. Forgan, K. Machida, and M.-H. Julien for valuable discussions. Part of this work was performed at the LNCMI-CNRS, a member of the European Magnetic Field Laboratory (EMFL). Work at LNCMI. was supported by the Laboratoire d’Excellence LANEF (ANR-10-LABX-51-01), French Agence Nationale de la Recherche (ANR) Grant No. ANR-19-CE30-0019-01 (Neptun) and EUR Grant No. NanoX nANR-17-EURE-0009. M. H., K. K., and J. C. acknowledge support by the Swiss National Science Foundation.
Publisher Copyright:
© 2022 American Physical Society.
PY - 2022/8/5
Y1 - 2022/8/5
N2 - Using sound velocity and attenuation measurements in high magnetic fields, we identify a new transition in the vortex lattice state of La2-xSrxCuO4. The transition, observed in magnetic fields exceeding 35 T and temperatures far below zero field Tc, 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.
AB - Using sound velocity and attenuation measurements in high magnetic fields, we identify a new transition in the vortex lattice state of La2-xSrxCuO4. The transition, observed in magnetic fields exceeding 35 T and temperatures far below zero field Tc, 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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U2 - 10.1103/PhysRevLett.129.067001
DO - 10.1103/PhysRevLett.129.067001
M3 - Article
C2 - 36018650
AN - SCOPUS:85136226346
SN - 0031-9007
VL - 129
JO - Physical Review Letters
JF - Physical Review Letters
IS - 6
M1 - 067001
ER -