Spin-echo observation of radio frequency induced flux lattice annealing (RIFLA) in a type-II superconductor W. G. Clark, F. Lefloch, M. E. Hanson et W. H. WongJ. Phys. IV France, 09 PR10 (1999) Pr10-49-Pr10-51DOI: https://doi.org/10.1051/jp4:19991012