Neel Point

Neyel point - antiferromagnetic Curie point , temperature${\displaystyle {\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">T</span></span>}}_{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">N</span></span>}}}$ {\ displaystyle T_ {N}} above which the antiferromagnet loses its specific magnetic properties and turns into a paramagnet ( phase transition of the second kind ). Near${\displaystyle {\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">T</span></span>}}_{\mathrm{<span\; class="mwe-math-element"><span\; class="mwe-math-mathml-inline\; mwe-math-mathml-a11y"\; style="display:\; none;">N</span></span>}}}$ {\ displaystyle T_ {N}} they reach maximum anomalies in the nonmagnetic properties of antiferromagnets (specific heat, coefficient of thermal expansion, temperature coefficient of electrical conductivity, etc.). Named for Louis Néel .