Constants¶

It is sometimes convenient to have some fundamental and derived constants predefined in the package. In micromagneticmodel, the following constants are available.

In [1]:

import micromagneticmodel as mm

1. Magnetic constant¶

In [2]:

mm.consts.mu0

Out[2]:

1.2566370614359173e-06

2. Elementary charge¶

In [3]:

mm.consts.e

Out[3]:

1.6021766208e-19

3. Electron's mass¶

In [4]:

mm.consts.me

Out[4]:

9.1093835611e-31

4. Boltzmann constant¶

In [5]:

mm.consts.kB

Out[5]:

1.3806485279e-23

5. Planck's constant¶

In [6]:

mm.consts.h

Out[6]:

6.62607004081e-34

6. Lande g-factor¶

In [7]:

mm.consts.g

Out[7]:

2.00231930436182

7. Reduced Planck constant¶

In [8]:

mm.consts.hbar

Out[8]:

1.0545718002680283e-34

8. Gyrotropic ratio¶

In [9]:

mm.consts.gamma

Out[9]:

176085964286.56906

9. Bohr magneton¶

In [10]:

mm.consts.muB

Out[10]:

9.274009992067861e-24

10. LLG precession term gamma¶

In [11]:

mm.consts.gamma0

Out[11]:

221276.14872118403