Temperature gradient Spin wave

[Shiwei Meng]

Hi

I am currently conducting research on using temperature gradients to excite spin waves in Mumax. However, the shape of the spin waves generated is not quite normal. Here is my script. Could you all offer some suggestions?

sizeX := 200e-9

sizeY := 30e-9

sizeZ := 5e-9

Nx := 200

Ny := 30

setgridsize(Nx, Ny, 5)

setcellsize(sizeX/Nx, sizeY/Ny,1e-9)

//setGeom(ellipse(500e-9, 160e-9))

enabledemag = false

Msat = 800e3

Aex = 13e-12

alpha= 0.01

Ku1 = 1.3e3

anisU= vector(0,0,1)

m=uniform(0, 0, 1)

//relax()

for i := 1;i<= 200;i++{

    defregion(i,xrange(-101e-9+i*1e-9,-101e-9+(i+1)*1e-9))

}

//for j := 1;j<= 250;j++{

 //   save(m.region(j))

//}

ThermSeed(20260119)

for j := 1;j <= 200;j++{

    temp.setregion(j,200-j)

}

//f := 6e9 // 1GHz

//A := 1// 10mT

//B_ext.setregion(1,vector(A*sinc(2*pi*f*(t-5e-9)),0, 0))

autosave(m, 10e-12)

tableAutosave(10e-12)

run(20e-9)