Explain curie law in details

Pierre curie experimentally found that magnetization of a paramagnetic sample is directly proportional to the magnitude of applied external magnetic field \(left( {{overrightarrow{B}}_{ext}} right)\) and inversely proportional to Temperature (T)

\(Mpropto {{overrightarrow{B}}_{ext}}\) \(Mpropto frac{1}{T}\) \(M=Cfrac{{{overrightarrow{B}}_{ext}}}{T}…(1)\)

This is known as curie’s law

C – is curie constant

\({{overrightarrow{B}}_{ext}}\) – is applied external field

T – Temperature

 

Curve: For a paramagnetic material M/Mex versus Bext/T

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