In [1]:

    

import oommf                     # Access oommf as Python module
Py = oommf.materials.permalloy   # Material from database

# Define the geometry:
my_geometry = oommf.geometry.Cuboid((0,0,0), (30, 30, 100), unitlength=1e-9)

# Create a simulation object
sim = oommf.Simulation(my_geometry, cellsize=5e-9, material=Py)

sim.m = [1, 1, 0]               # initialise magnetisation uniformly


    

In [2]:

    

sim                             # Show simulation info


    

    
Out[2]:





Simulation: Py(Fe80Ni20). 
	Geometry: Cuboid corner1 = (0, 0, 0), corner2 = (30, 30, 100). 
	          Cells = [6, 6, 20], total=720.

In [3]:

    

sim.advance_time(1e-9)          # Solve LLG for 0.1ns


    

    




Integrating ODE from 0.0s to 1e-09s

In [4]:

    

sim.advance_time(3e-9)          # Solve LLG for another 0.2 ns


    

    




Integrating ODE from 1e-09s to 3e-09s

In [5]:

    

data = oommf.DataTable()        # Open ODT file
data.m_of_t()                   # and show m(t)


    

    
Out[5]:

In [6]:

    

sim                             # show simulation state again


    

    
Out[6]:





Simulation: Py(Fe80Ni20). 
	Geometry: Cuboid corner1 = (0, 0, 0), corner2 = (30, 30, 100). 
	          Cells = [6, 6, 20], total=720.
	Current t = 3e-09s

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