The Néel temperature or magnetic ordering temperature , T_N, is the temperature at which an antiferromagnetic material becomes paramagnetic – that is, the thermal energy becomes large enough to destroy the macroscopic magnetic ordering within the material.

The Néel temperature is analogous to the Curie temperature, T_C, for ferromagnetic materials. It is named after Louis Néel (1904–2000), who received the 1970 Nobel prize in physics for his work in the area.

Below listed the Néel temperature of several materials^[1]:

substance	Néel temperature, in K
MnO	116
MnS	160
MnTe	307
MnF2	67
FeF2	79
FeCl2	24
FeO	298
CoCl2	25
CoO	291
NiCl2	50
NiO	525
Cr	308

1. ^ Charles Kittel, Introduction to Solid State Physics, 8th ed., John Wiley & Sons, 2005

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