Curie Constant Calculator

Your details

Select a common paramagnetic ion to pre-fill the g-factor and J value, or choose Custom to enter your own.
Choose whether to supply the number density directly, or derive it from the number of magnetic atoms per unit cell and the cubic lattice constant.
Number of magnetic atoms per cubic metre. For reference: liquid-state transition-metal salts are roughly 10^27 to 10^29 m^-3.
atoms/m3
Temperature in Kelvin used to compute the dimensionless magnetic susceptibility chi = C / T. Leave blank to skip susceptibility.
K
Curie constant CVery strongly paramagnetic
7.7547K

Curie constant in SI units (K), relating susceptibility to temperature via chi = C / T

Effective magnetic moment5.916muB
Susceptibility at T0.02585
Number density n8.491x 10^28 m^-3
5.916 muB
0-1 muB (weak)<11-3 muB (moderate)1-33-6 muB (strong)3-66-10 muB (very strong)6+

Curie constant C = 7.7547 K

  • The Curie constant C = 7.7547 K means that at room temperature (300 K), the susceptibility is 2.585e-2.
  • The effective magnetic moment mu_eff = 5.916 Bohr magnetons for Mn2+ (3d5, S = 5/2).
  • At 300 K the dimensionless susceptibility is 2.585e-2, meaning the material develops 25849.14 micro-amperes of magnetisation per ampere per metre in a 1 T field.
  • Curie behaviour holds only above the material's ordering temperature (Curie or Neel point). Near or below that temperature, a Curie-Weiss correction is needed.

Next stepTo calculate magnetisation at a given field strength, use Curie's Law: M = C * B / T, where B is in Tesla and T is in Kelvin.

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