Curie–Weiss law

E453915

The Curie–Weiss law is a refinement of Curie’s law in magnetism that accounts for magnetic interactions between atoms by introducing a characteristic temperature, improving the description of paramagnetic susceptibility near ferromagnetic phase transitions.

All labels observed (1)

Label Occurrences
Curie–Weiss law canonical 8

How this entity was disambiguated

Statements (38)

Predicate Object
instanceOf law of magnetism ⓘ
physical law ⓘ
accountsFor interactions between magnetic moments ⓘ
appliesTo antiferromagnetic materials above Néel temperature ⓘ
ferromagnetic materials above Curie temperature ⓘ
paramagnetic materials ⓘ
approximationType mean-field approximation ⓘ
phenomenological approximation ⓘ
associatedWithConcept Weiss molecular field ⓘ
linked to: Heisenberg model

mean field theory ⓘ
assumes linear response to applied magnetic field ⓘ
non-interacting spins in an effective mean field ⓘ
characteristicSignOfTheta near-zero θ for simple paramagnets ⓘ
negative θ for antiferromagnets ⓘ
positive θ for ferromagnets ⓘ
describes magnetic susceptibility of paramagnets ⓘ
field condensed matter physics ⓘ
magnetism ⓘ
statistical mechanics ⓘ
givesRelation χ = C / (T − θ) ⓘ
historicalContext early 20th century development in magnetism theory ⓘ
improvesDescriptionNear ferromagnetic phase transition ⓘ
introduces Curie temperature ⓘ
Weiss temperature ⓘ
limitation breaks down close to critical temperature due to critical fluctuations ⓘ
namedAfter Pierre Curie ⓘ
Pierre-Ernest Weiss ⓘ
predicts divergence of susceptibility at Curie temperature ⓘ
refines Curie’s law ⓘ
relatedModel Ising model in mean-field approximation ⓘ
linked to: Ising models
relatedTo Curie law ⓘ
relatesQuantity Weiss constant θ ⓘ
absolute temperature T ⓘ
magnetic susceptibility χ ⓘ
usedFor classifying magnetic ordering type ⓘ
estimating Curie temperature from susceptibility data ⓘ
usesParameter Curie constant ⓘ
validInLimit high temperature limit above ordering temperature ⓘ

How these facts were elicited

Referenced by (8)

Full triples — surface form annotated when it differs from this entity's canonical label.

Curie law of magnetization → isGeneralizedBy → Curie–Weiss law ⓘ
Curie law of magnetization → relatedConcept → Curie–Weiss law ⓘ
Curie point → relatedConcept → Curie–Weiss law ⓘ
subject linked to: Curie point (Curie temperature)
Langevin theory of paramagnetism → comparedTo → Curie–Weiss law ⓘ
Curie → hasEponym → Curie–Weiss law ⓘ
Curie constant → relatedConcept → Curie–Weiss law ⓘ
Brillouin function → relatedConcept → Curie–Weiss law ⓘ
Langevin function → relatedTo → Curie–Weiss law ⓘ