Abstract
M icromagnet ic simulat ion for perpendicular magnet ic anisot ropy CoxSiyBz subst ance w hich ut ilizes t hermal act ivat ing for several param et er such as anisot ropy const ant and sat urat ion magnet izat ion paramet er has been examined using Landau-Lift shit z Gilbert equat ion. Perpendicular M agnet ic Anisot ropy is used t o realize st orage medium w it h sizable capacit y. How ever, it has a disadvant age in t he need of a large w rit ing field. Providing of heat can be used as a solut ion t o lessen magnit ude of w rit ing field. At room t emperat ure, combinat ion value of anisot ropy const ant and sat urat ion magnet izat ion give impact t o energy barrier, sw it ching field and domain w all propagat ion rat e in magnet izat ion reversal. When nano-dot is heat ed at Curie t emperat ure t hen cooled abrupt ly unt il room t emperat ure, w rit ing field is needed t o reverse t he magnet izat ion has been successfully reduced up t o ~ 90%.
