Publications (3)8.43 Total impact
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Article: Muons as local probes of three-body correlations in the mixed state of type-II superconductors.
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ABSTRACT: The vortex glass state formed by magnetic flux lines in a type-II superconductor is shown to possess nontrivial three-body correlations. While such correlations are usually difficult to measure in glassy systems, the magnetic fields associated with the flux vortices allow us to probe these via muon-spin rotation measurements of the local field distribution. We show via numerical simulations and analytic calculations that these observations provide detailed microscopic insight into the local order of the vortex glass and more generally validate a theoretical framework for correlations in glassy systems.Physical Review Letters 11/2006; 97(17):177004. · 7.37 Impact Factor -
Article: μSR measurements on the vortex lattice of La1.83Sr0.17CuO4
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ABSTRACT: We report μSR measurements of the vortex lattice in the slightly overdoped compound La2-xSrxCuO4(x=0.17). The magnetic phase diagram provides an interesting comparison to the more exotic phases observed in the underdoped (x=0.10) compound. The field induced hexagonal to intrinsic square transition is observed to occur at around 0.4 T in agreement with previous neutron measurements.Physica B Condensed Matter · 1.06 Impact Factor -
Article: Novel Characterisation of Coupled Magnetic and Superconductor Order in Thin Film Hybrid Structures
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ABSTRACT: We have obtained direct evidence for the coexistence of a spin density wave (SDW) with bulk superconductivity in the SC layer in a FM/SC/FM bilayer. The enhancement of the SDW amplitude in the superconducting state, and moreover the pi/2 phase shift of one component of the SDW below Tc, indicating a coupling between the superconducting and magnetic order.
