Hello everyone
I am trying to perform a time integration to a second-order differential equation numerically. The objective is to integrate the same equation into three different regimes. All this is explained in the document that I attach to my question. I write here the parameters involved:
mu0=4*pi*10^(-7);gamma=2.21*10^5;kB=1.38064852*10^(-23);a0=3.328*10^(-10);alpha_001=0.001;muB=9.27400994*10^(-24);mu=4*muB;c=8.539*10^(-10);V=c*(a0^2);Ms=mu/V;Delta0=1.9777269E-08;vmax=43.3*10^(3);Ss=5/2;jinter=532*kB;Jinter=jinter*Ss^2/V;vmax=43.3*10^(3);HSO=60*10^4/12.54;C1=(2*alpha*gamma*Jinter)/(mu0*Ms);C2=(2*(gamma^2)*Jinter*Delta0)/(mu0*Ms);Hcrit=2.72*10^4/12.54;t=[0:0.001:140].*(10^(-12));ramping=[30 40 50 60].*(10^(-12));
Any idea?
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