Talk by Mark Laver, PSI – Niels Bohr Institute - University of Copenhagen

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Niels Bohr Institute > Calendar > 2010 > Talk by Mark Laver, PSI

Talk by Mark Laver, PSI

The arrangement of flux lines (FLs) in Type-II superconductors can unveil invaluable information about the underlying superconducting state, and by itself the FL system may be exploited as a test-bed for theories of structural order in solids and glasses.

In this talk we overview recent results from neutron scattering explorations of FLs in superconductors, ranging from elemental niobium to the pnictides and cuprates.
Contemporary theories, such as the 'Bragg glass' --- where quasi-long range order survives in a weakly disordered system --- are examined.
Also, the rich variety of astonishing FL lattice shapes exhibited by Nb and YBCO are presented and we discuss what they reveal as to the underlying nature of these conventional and unconventional superconductors.