/*****************************************************************  

  Description: 
   This mumax3 script simulates a thermal gradient driven domain
   wall in a permalloy nanostrip.

   This file is written for the mumax3 workshop organised for the 
   spintronic seminar series in the summer of 2020. For more 
   information go to https://www.mumax.ugent.be/mumax3-workshop
  
  Authors:

   Dr. Jonathan Leliaert (jonathan.leliaert@ugent.be)
   Dr. Jeroen Mulkers    (jeroen.mulkers@ugent.be)

******************************************************************/

SetMesh(256, 16, 1, 5e-09, 5.e-09, 20e-09, 0, 0, 0)
Msat = 800e3
Aex = 1e-11
alpha = 0.1

//define regions
for i :=1;i<198;i++{
	defregion(i,xrange(-640e-9+(i+1)*6.4e-9,-640e-9+(i+2)*6.4e-9))
}

//define thermal gradient and set thermal seed
for i :=1;i<200;i++{
	temp.setregion(i,200+i)
}
Thermseed(12345)

m=twodomain(1,0,0, 0,1,0, -1,0,0)
relax()

//remove edge charges
BoundaryRegion := 0
MagLeft := 1
MagRight := -1
ext_rmSurfaceCharge(BoundaryRegion, MagLeft, MagRight)
relax()

//schedule output
tableadd(ext_dwxpos)
tableautosave(1e-10)

//set solver withadaptive timestepping
setsolver(5)
fixdt=0

run(5e-7)