1998/10/26 by G. Rose, Rose, G., P. C. E. Stamp +1
Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9810350
6 pages, accepted for J. Low Temp. Phys. (Nov. 1998 issue)
arxiv created 1998/10/26 · arxiv updated 2009/11/30
We calculate the magnetisation relaxation in the short-time regime for an ensemble of nanomagnets in the presence of a low-frequency external AC biasing field, at temperatures lower than the magnetic anisotropy energy of the individual nanomagnets. It is then found that the relaxation is strongly affected by AC fields with amplitude larger than that of the T2 fluctuations in the nuclear field. This will allow experimental probing of the nuclear spin relaxation mechanism.