# blochLaw¶

Stoner.analysis.fitting.models.magnetism.blochLaw(T, Ms, Tc)[source]

Bloch’s law for spontaneous magnetism at low temperatures.

Parameters
• T (array like) – Temperatures at which M has been measured (Probably in K)

• Ms (float) – The magnetisation at 0K (in whtaever units M is being measured in)

• Tc (float) – Curie temperature in K

Returns

(array like) – Calculated values of M

Notes

This fits the Bloch Law as given by:

$$M(T) = M_s\left[1 - \left(\frac{T}{T_C}\right)^\frac{3}{2}\right]$$

This expression is only really valid in the low temperature regime.