Muon-spin rotation measurements of the vortex state in Sr2 Ru O4: type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice

S. J. Ray; A. S. Gibbs; S. J. Bending; P. J. Curran; E. Babaev; C. Baines; A. P. Mackenzie; S. L. Lee

doi:10.1103/PhysRevB.89.094504

Muon-spin rotation measurements of the vortex state in Sr₂ Ru O₄: type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice

S. J. Ray, A. S. Gibbs, S. J. Bending, P. J. Curran, E. Babaev, C. Baines, A. P. Mackenzie, S. L. Lee

Department of Physics

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Abstract

Muon-spin rotation has been used to probe the vortex state in Sr2 Ru O4. At moderate fields and temperatures a lattice of triangular symmetry is observed, crossing over to a lattice of square symmetry with increasing field and temperature. At lower fields it is found that there are large regions of the sample that are completely free from vortices which grow in volume as the temperature falls. Importantly this is accompanied by increasing vortex density and increasing disorder within the vortex-cluster-containing regions. Both effects are expected to result from the strongly temperature-dependent long-range vortex attractive forces arising from the multiband chiral-order superconductivity.

Original language	English
Article number	094504
Journal	Physical Review B : Condensed Matter and Materials Physics
Volume	89
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.89.094504
Publication status	Published - 6 Mar 2014

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10.1103/PhysRevB.89.094504

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Ray, S. J., Gibbs, A. S., Bending, S. J., Curran, P. J., Babaev, E., Baines, C., Mackenzie, A. P., & Lee, S. L. (2014). Muon-spin rotation measurements of the vortex state in Sr₂ Ru O₄: type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice. Physical Review B : Condensed Matter and Materials Physics, 89(9), Article 094504. https://doi.org/10.1103/PhysRevB.89.094504

Muon-spin rotation measurements of the vortex state in Sr₂ Ru O₄: type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice. / Ray, S. J.; Gibbs, A. S.; Bending, S. J. et al.
In: Physical Review B : Condensed Matter and Materials Physics, Vol. 89, No. 9, 094504, 06.03.2014.

Research output: Contribution to journal › Article › peer-review

Ray, SJ, Gibbs, AS, Bending, SJ, Curran, PJ, Babaev, E, Baines, C, Mackenzie, AP & Lee, SL 2014, 'Muon-spin rotation measurements of the vortex state in Sr₂ Ru O₄: type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice', Physical Review B : Condensed Matter and Materials Physics, vol. 89, no. 9, 094504. https://doi.org/10.1103/PhysRevB.89.094504

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abstract = "Muon-spin rotation has been used to probe the vortex state in Sr2 Ru O4. At moderate fields and temperatures a lattice of triangular symmetry is observed, crossing over to a lattice of square symmetry with increasing field and temperature. At lower fields it is found that there are large regions of the sample that are completely free from vortices which grow in volume as the temperature falls. Importantly this is accompanied by increasing vortex density and increasing disorder within the vortex-cluster-containing regions. Both effects are expected to result from the strongly temperature-dependent long-range vortex attractive forces arising from the multiband chiral-order superconductivity.",

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Muon-spin rotation measurements of the vortex state in Sr₂ Ru O₄: type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice

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SFM Consortium: Generation, Imaging and Control of Novel Coherent Electronic States

A SCANNING HALL PROBE MICROSCOPE FOR HIGH RESOLUTION MILLIKE LVIN MAGNETIC IMAGING

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Muon-spin rotation measurements of the vortex state in Sr2 Ru O4: type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice

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Projects

SFM Consortium: Generation, Imaging and Control of Novel Coherent Electronic States

A SCANNING HALL PROBE MICROSCOPE FOR HIGH RESOLUTION MILLIKE LVIN MAGNETIC IMAGING

Cite this

Muon-spin rotation measurements of the vortex state in Sr₂ Ru O₄: type-1.5 superconductivity, vortex clustering, and a crossover from a triangular to a square vortex lattice