Useful unit Conversions

Magnetic flux density

1  T = 1e4  G
1 uT = 1e-2 G = 0.01 G

Surface magnetization

Amperes per meter to Bohr magnetons per square nanometer and back.

SI unit measured: Amps: A [for 2D magnetization, A/m for 3D]

More useful: Bohr magnetons per nanometre squared: mu_B nm^-2

mu_B -> 9.274 010 e-24 A m^+2 or J/T
m^2 -> 1e+18 nm^2

Measure x amps = x A
 def  mu_B  =  9.2_        in units of A m^2
 => x A = x ⋅ (1 / 9.2_)   in units of mu_B/m^2
 => x A = x ⋅ (1e-18/9.2_) in units of mu_B/nm^2

NB: bulk magnetization A/m is ~1e6 for ferromagnetic order

Half power point

A change of -3dB is equivalent to a factor of 1/2 in power.

Reduced gyromagnetic ratio

gamma_e = 28.02 GHz/T