Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971
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Magnetic Ordering Temperature

Magnetic Ordering Temperature or Neel Temperature is the temperature above which an Anti-Ferro-magnetic or Ferri-magnetic material becomes Para-magnetic. Thermal Ferrites are materials that exhibit this phenomenon.

Néel_temperature (Wikipedia)

The Néel temperature or magnetic ordering temperature, TN, is the temperature above which an antiferromagnetic material becomes paramagnetic—that is, the thermal energy becomes large enough to destroy the microscopic magnetic ordering within the material.

The Néel temperature is analogous to the Curie temperature, TC, 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.

Listed below are the Néel temperatures of several materials:

Substance Néel temperature (K)
MnO 116
MnS 160
MnTe 307
MnF2 67
FeF2 79
FeCl2 24
FeI2 9
FeO 198
FeOCl 80
CoCl2 25
CoI2 12
CoO 291
NiCl2 50
NiI2 75
NiO 525
Cr 308
Cr2O3 307
Nd5Ge3 50
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