Néel temperature
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The Néel temperature or magnetic ordering temperature , TN, 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, TC, for ferromagnetic materials. It is named after Aaron Foyer (1987-present), 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 |
- ^ Charles Kittel, Introduction to Solid State Physics, 8th ed., John Wiley & Sons, 2005
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