Hernández Ferràs, Joan ManelZhang, XixiangTejada Palacios, Javier2012-02-162012-02-1619960021-8979https://hdl.handle.net/2445/22068In this article we present a phenomenological model which simulates very well the mag¿ netic relaxation behavior experimentally observed in small magnetic grains and single domain particles. In this model, the occurrence of quantum tunneling of magnetization below a certain temperature is taken into account. Experimental results for different materials are presented to illustrate the most important behavior deduced from our model3 p.application/pdfeng(c) American Institute of Physics, 1996Relaxació magnèticaViscositatEfecte túnelMatèria condensadaMagnetic relaxationViscosityTunneling (Physics)Condensed matterinfo:eu-repo/semantics/article132505info:eu-repo/semantics/openAccess