Theory of vortex excitation imaging via an NMR relaxation measurement

Abstract

The temperature dependence of the site-dependent nuclear spin relaxation time T_1 around vortices is studied in s-wave and d-wave superconductors.Reflecting low energy electronic excitations associated with the vortex core, temperature dependences deviate from those of the zero-field case, and T_1 becomes faster with approaching the vortex core. In the core region, T_1^{-1} has a new peak below T_c. The NMR study by the resonance field dependence may be a new method to prove the spatial resolved vortex core structure in various superconductors.

5 pages, 3 figures

References in corpus (2)

• Field dependence of the vortex structure in d-wave and s-wave superconductors
• On Local Symmetric Order Parameters of Vortex Lattice States

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