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