Publication
Physical Review Letters
Paper

Nuclear spin diffusion and its thermodynamic quenching in the field gradients of a Type-II superconductor

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Abstract

We have observed anomalously rapid relaxation of dipole-dipole energy in mixed-state superconducting vanadium. We show that spin diffusion driven by an inhomogeneous magnetic field uses spin-spin energy as a heat sink. Coupled differential equations are proposed for magnetization and spin-spin energy, and the diffusion coefficient is inferred from our measurements. It is concluded that spin diffusion cannot be a relaxation mechanism for magnetization in the mixed state, as previously assumed. © 1973 The American Physical Society.

Date

05 Nov 1973

Publication

Physical Review Letters

Authors

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