def relax_system(mesh):
sim = Sim(mesh, name='relax')
sim.set_default_options(mu_s=1e-23, gamma=1.76e11)
sim.driver.alpha = 1.0
J = 1e-22
exch = UniformExchange(J)
sim.add(exch)
demag = Demag()
sim.add(demag)
sim.set_m(init_m)
ts = np.linspace(0, 5e-10, 101)
for t in ts:
sim.run_until(t)
print t
sim.save_vtk()
np.save('m0.npy', sim.spin)
def relax_system():
mesh = CuboidMesh(nx=121, ny=121, nz=1, dx=0.5, dy=0.5, unit_length=1e-9)
sim = Sim(mesh, name='relax_skx')
sim.set_default_options(gamma=const.gamma)
sim.driver.alpha = 1.0
sim.mu_s = mu_s
sim.set_m(init_m)
demag = Demag()
sim.add(demag)
field = demag.compute_field()
print field
vtk = SaveVTK(mesh, name='demag')
vtk.save_vtk(field)
sim.save_vtk()
plot_f(mesh, field, sim._mu_s_inv)
def relax_system(mesh):
sim = Sim(mesh, name='relax')
sim.set_default_options(mu_s=1e-23, gamma=1.76e11)
sim.driver.alpha = 1.0
J = 1e-22
exch = UniformExchange(J)
sim.add(exch)
demag = Demag()
sim.add(demag)
sim.set_m(init_m)
ts = np.linspace(0, 5e-10, 101)
for t in ts:
sim.run_until(t)
print t
sim.save_vtk()
np.save('m0.npy', sim.spin)