text: """
  Si constants for magnetic calculations
  You can import them with
  
  ```from heuslertools.magnetism.si_constants import MU_BOHR, K_B, MU_ZERO, g```
  """
  import math
  
  
  MU_BOHR = 9.274009994e-24
  """Bohr magneton \(µ_{B}\) in \(\\frac{J}{T}\)"""
  K_B = 1.3806e-23
  """Boltzmann constant \(k_{B}\) in \(\\frac{J}{K}\)"""
  MU_ZERO = 4*math.pi*1e-7
  """Vacuum permeability \(µ_{0}\) in \(\\frac{N}{A^{2}}\)"""
  g = 2
  """g-factor"""
  