Néel point

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Néel point

(neɪˈɛl) or

Néel temperature

n
(General Physics) the temperature above which an antiferromagnetic substance loses its antiferromagnetism and becomes paramagnetic
References in periodicals archive ?
Other materials, instead, are antiferromagnetic, meaning that below the transition temperature (in this case called Neel temperature, TN), the "compass needles" point in the opposite direction.
Proposing that the blocked state temperature [T.sub.B] =215 K is close to the Neel temperature, we can expect based on the literature data that the real composition of ferrite garnet nanocrystallites differs significantly from the nominal composition [Bi.sub.2][Dy.sub.1][Fe.sub.4]=[Ga.sub.1][O.sub.12].
(1) The specific heat of [Er.sub.3]Ni is crucial as regenerator material, and above its Neel temperature, it is ineffective to use since the temperature shifts towards higher side.
BiFeO3 shows G-type antiferromagnetic ordering with Neel temperature of 370C.
It is found that [Mn.sub.3][Zn.sub.0.9][Cu.sub.0.1]N exhibit a typical AFM-PM transition with the Neel temperature of [T.sub.N] ~ 163 K.
Data is presented on first- and second-phase transitions, melting lines, crystal structures of the stable and metastable phases, important phase properties such as the Curie and Neel temperature, and the superconducting temperature.
[omega](k) and density of states of the spin wave excitations the specific heat [c.sub.v](T H) and the mean-field Neel temperature. [T.sub.N].
Also Er[Fe.sub.4][Ge.sub.2] [9], which disproportionates below the Neel temperature at 44 K into two different phases, with different magnetic properties, whose relative proportions vary sharply with temperature in response to magnetostriction effects.