Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free YBa2Cu3O7

J.S. White, V. Hinkov, R.W. Heslop, R.J. Lycett, E.M. Forgan, C. Bowell, S. Strässle, Asger Bech Abrahamsen, M. Laver, C.D. Dewhurst, J. Kohlbrecher, J.L. Gavilano, J. Mesot, B. Keimer, A. Erb

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    Abstract

    We report on small-angle neutron scattering studies of the intrinsic vortex lattice (VL) structure in detwinned YBa2Cu3O7 at 2 K, and in fields up to 10.8 T. Because of the suppressed pinning to twin-domain boundaries, a new distorted hexagonal VL structure phase is stabilized at intermediate fields. It is separated from a low-field hexagonal phase of different orientation and distortion by a first-order transition at 2.0(2) T that is probably driven by Fermi surface effects. We argue that another first-order transition at 6.7(2) T, into a rhombic structure with a distortion of opposite sign, marks a crossover from a regime where Fermi surface anisotropy is dominant, to one where the VL structure and distortion is controlled by the order-parameter anisotropy.
    Original languageEnglish
    JournalPhysical Review Letters
    Volume102
    Issue number9
    Pages (from-to)097001
    ISSN0031-9007
    DOIs
    Publication statusPublished - 2009

    Bibliographical note

    Copyright (2009) by the American Physical Society.

    Keywords

    • Materials research
    • Superconducting materials for the energy sector

    Cite this

    White, J. S., Hinkov, V., Heslop, R. W., Lycett, R. J., Forgan, E. M., Bowell, C., ... Erb, A. (2009). Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free YBa2Cu3O7. Physical Review Letters, 102(9), 097001. https://doi.org/10.1103/PhysRevLett.102.097001
    White, J.S. ; Hinkov, V. ; Heslop, R.W. ; Lycett, R.J. ; Forgan, E.M. ; Bowell, C. ; Strässle, S. ; Abrahamsen, Asger Bech ; Laver, M. ; Dewhurst, C.D. ; Kohlbrecher, J. ; Gavilano, J.L. ; Mesot, J. ; Keimer, B. ; Erb, A. / Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free YBa2Cu3O7. In: Physical Review Letters. 2009 ; Vol. 102, No. 9. pp. 097001.
    @article{60a5dc99cb0948af8becf76bcad5ae49,
    title = "Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free YBa2Cu3O7",
    abstract = "We report on small-angle neutron scattering studies of the intrinsic vortex lattice (VL) structure in detwinned YBa2Cu3O7 at 2 K, and in fields up to 10.8 T. Because of the suppressed pinning to twin-domain boundaries, a new distorted hexagonal VL structure phase is stabilized at intermediate fields. It is separated from a low-field hexagonal phase of different orientation and distortion by a first-order transition at 2.0(2) T that is probably driven by Fermi surface effects. We argue that another first-order transition at 6.7(2) T, into a rhombic structure with a distortion of opposite sign, marks a crossover from a regime where Fermi surface anisotropy is dominant, to one where the VL structure and distortion is controlled by the order-parameter anisotropy.",
    keywords = "Materials research, Superconducting materials for the energy sector, Superledende materialer til energisektoren, Materialeforskning",
    author = "J.S. White and V. Hinkov and R.W. Heslop and R.J. Lycett and E.M. Forgan and C. Bowell and S. Str{\"a}ssle and Abrahamsen, {Asger Bech} and M. Laver and C.D. Dewhurst and J. Kohlbrecher and J.L. Gavilano and J. Mesot and B. Keimer and A. Erb",
    note = "Copyright (2009) by the American Physical Society.",
    year = "2009",
    doi = "10.1103/PhysRevLett.102.097001",
    language = "English",
    volume = "102",
    pages = "097001",
    journal = "Physical Review Letters",
    issn = "0031-9007",
    publisher = "American Physical Society",
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    White, JS, Hinkov, V, Heslop, RW, Lycett, RJ, Forgan, EM, Bowell, C, Strässle, S, Abrahamsen, AB, Laver, M, Dewhurst, CD, Kohlbrecher, J, Gavilano, JL, Mesot, J, Keimer, B & Erb, A 2009, 'Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free YBa2Cu3O7', Physical Review Letters, vol. 102, no. 9, pp. 097001. https://doi.org/10.1103/PhysRevLett.102.097001

    Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free YBa2Cu3O7. / White, J.S.; Hinkov, V.; Heslop, R.W.; Lycett, R.J.; Forgan, E.M.; Bowell, C.; Strässle, S.; Abrahamsen, Asger Bech; Laver, M.; Dewhurst, C.D.; Kohlbrecher, J.; Gavilano, J.L.; Mesot, J.; Keimer, B.; Erb, A.

    In: Physical Review Letters, Vol. 102, No. 9, 2009, p. 097001.

    Research output: Contribution to journalJournal articleResearchpeer-review

    TY - JOUR

    T1 - Fermi Surface and Order Parameter Driven Vortex Lattice Structure Transitions in Twin-Free YBa2Cu3O7

    AU - White, J.S.

    AU - Hinkov, V.

    AU - Heslop, R.W.

    AU - Lycett, R.J.

    AU - Forgan, E.M.

    AU - Bowell, C.

    AU - Strässle, S.

    AU - Abrahamsen, Asger Bech

    AU - Laver, M.

    AU - Dewhurst, C.D.

    AU - Kohlbrecher, J.

    AU - Gavilano, J.L.

    AU - Mesot, J.

    AU - Keimer, B.

    AU - Erb, A.

    N1 - Copyright (2009) by the American Physical Society.

    PY - 2009

    Y1 - 2009

    N2 - We report on small-angle neutron scattering studies of the intrinsic vortex lattice (VL) structure in detwinned YBa2Cu3O7 at 2 K, and in fields up to 10.8 T. Because of the suppressed pinning to twin-domain boundaries, a new distorted hexagonal VL structure phase is stabilized at intermediate fields. It is separated from a low-field hexagonal phase of different orientation and distortion by a first-order transition at 2.0(2) T that is probably driven by Fermi surface effects. We argue that another first-order transition at 6.7(2) T, into a rhombic structure with a distortion of opposite sign, marks a crossover from a regime where Fermi surface anisotropy is dominant, to one where the VL structure and distortion is controlled by the order-parameter anisotropy.

    AB - We report on small-angle neutron scattering studies of the intrinsic vortex lattice (VL) structure in detwinned YBa2Cu3O7 at 2 K, and in fields up to 10.8 T. Because of the suppressed pinning to twin-domain boundaries, a new distorted hexagonal VL structure phase is stabilized at intermediate fields. It is separated from a low-field hexagonal phase of different orientation and distortion by a first-order transition at 2.0(2) T that is probably driven by Fermi surface effects. We argue that another first-order transition at 6.7(2) T, into a rhombic structure with a distortion of opposite sign, marks a crossover from a regime where Fermi surface anisotropy is dominant, to one where the VL structure and distortion is controlled by the order-parameter anisotropy.

    KW - Materials research

    KW - Superconducting materials for the energy sector

    KW - Superledende materialer til energisektoren

    KW - Materialeforskning

    U2 - 10.1103/PhysRevLett.102.097001

    DO - 10.1103/PhysRevLett.102.097001

    M3 - Journal article

    C2 - 19392554

    VL - 102

    SP - 097001

    JO - Physical Review Letters

    JF - Physical Review Letters

    SN - 0031-9007

    IS - 9

    ER -