Mott transition
E111761
The Mott transition is a metal–insulator transition in strongly correlated electron systems, where electron–electron interactions drive a material from conducting to insulating behavior without a change in its crystal structure.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Metal-Insulator Transitions | 2 |
| Mott transition canonical | 2 |
| Brinkman–Rice transition | 1 |
| Mott–Hubbard transition | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T938793 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Mott transition Context triple: [Nevill Mott, knownFor, Mott transition]
-
A.
Fermi liquid theory
Fermi liquid theory is a framework in condensed matter physics that describes how interacting fermions in a metal behave like long-lived quasiparticles with properties similar to those of a non-interacting Fermi gas.
-
B.
Eliashberg theory
Eliashberg theory is an extension of BCS superconductivity that incorporates strong-coupling and frequency-dependent effects to more accurately describe real superconducting materials.
-
C.
Landau theory of second-order phase transitions
Landau theory of second-order phase transitions is a phenomenological framework that explains continuous phase transitions by expanding the free energy in terms of an order parameter and analyzing symmetry-breaking behavior near critical points.
-
D.
Fermi surface
The Fermi surface is the boundary in momentum space separating occupied from unoccupied electron states at zero temperature, crucial for determining a metal’s electronic and superconducting properties.
-
E.
Heisenberg model
The Heisenberg model is a fundamental theoretical framework in quantum mechanics and condensed matter physics that describes interacting spins on a lattice and underpins much of our understanding of magnetism in materials.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Mott transition Target entity description: The Mott transition is a metal–insulator transition in strongly correlated electron systems, where electron–electron interactions drive a material from conducting to insulating behavior without a change in its crystal structure.
-
A.
Fermi liquid theory
Fermi liquid theory is a framework in condensed matter physics that describes how interacting fermions in a metal behave like long-lived quasiparticles with properties similar to those of a non-interacting Fermi gas.
-
B.
Eliashberg theory
Eliashberg theory is an extension of BCS superconductivity that incorporates strong-coupling and frequency-dependent effects to more accurately describe real superconducting materials.
-
C.
Landau theory of second-order phase transitions
Landau theory of second-order phase transitions is a phenomenological framework that explains continuous phase transitions by expanding the free energy in terms of an order parameter and analyzing symmetry-breaking behavior near critical points.
-
D.
Fermi surface
The Fermi surface is the boundary in momentum space separating occupied from unoccupied electron states at zero temperature, crucial for determining a metal’s electronic and superconducting properties.
-
E.
Heisenberg model
The Heisenberg model is a fundamental theoretical framework in quantum mechanics and condensed matter physics that describes interacting spins on a lattice and underpins much of our understanding of magnetism in materials.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
metal–insulator transition
ⓘ
phase transition ⓘ |
| characterizedBy |
change from metallic to insulating behavior
ⓘ
change in optical conductivity spectrum ⓘ critical endpoint in the temperature–pressure phase diagram ⓘ first-order behavior at finite temperature in many materials ⓘ opening of a charge gap at the Fermi level ⓘ possible coexistence region of metal and insulator phases ⓘ spectral weight transfer between Hubbard bands ⓘ suppression of electrical conductivity ⓘ |
| differsFrom |
Anderson localization transition
ⓘ
linked to:
Anderson localization
band insulator transition ⓘ |
| doesNotRequire | change in crystal structure ⓘ |
| drivenBy |
carrier doping
ⓘ
chemical substitution ⓘ increase of U/W ratio ⓘ pressure variation ⓘ strain ⓘ strong electron correlations ⓘ temperature change ⓘ |
| field |
condensed matter physics
ⓘ
strongly correlated electron systems ⓘ |
| impact |
important for Mottronics applications
ⓘ
relevant for correlated electron devices ⓘ relevant for understanding high-temperature superconductivity ⓘ |
| involves |
Coulomb repulsion
ⓘ
Hubbard bands ⓘ Mott gap ⓘ bandwidth W ⓘ electron localization ⓘ electron–electron interactions ⓘ on-site Coulomb interaction U ⓘ |
| namedAfter |
Nevill Francis Mott
ⓘ
linked to:
Nevill Mott
|
| observedIn |
V2O3
ⓘ
cuprate materials ⓘ organic charge-transfer salts ⓘ rare-earth nickelates ⓘ transition metal oxides ⓘ ultracold atoms in optical lattices ⓘ vanadium dioxide ⓘ |
| relatedConcept |
Brinkman–Rice transition
ⓘ
linked to:
Mott transition
Hubbard model half-filling ⓘ Mott insulator ⓘ Mott–Hubbard transition ⓘ
linked to:
Mott transition
|
| temperatureDependence |
can occur at finite temperature
ⓘ
terminates at a critical endpoint ⓘ |
| theoreticalFramework |
Dynamical Mean-Field Theory
ⓘ
Gutzwiller approximation ⓘ Hubbard model ⓘ slave-boson methods ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Mott transition Description of subject: The Mott transition is a metal–insulator transition in strongly correlated electron systems, where electron–electron interactions drive a material from conducting to insulating behavior without a change in its crystal structure.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.