Keyphrases
Local Moments
100%
F-electrons
100%
Kondo Lattice Model
100%
Fluctuation Energy
100%
Hund's Rule
100%
Low-energy Effective Theory
100%
Magic-angle Twisted Bilayer Graphene
100%
Heavy Fermion
50%
Ruderman-Kittel-Kasuya-Yosida (RKKY) Interaction
50%
Phase Transition
25%
Excitation Spectrum
25%
Triangular Lattice
25%
Stiffness
25%
Analytic Expression
25%
Strong Coupling
25%
Collective Modes
25%
Ferromagnetic Interaction
25%
Antiferromagnetic Interaction
25%
Full Model
25%
Goldstone Mode
25%
Excitation Mode
25%
Spin Models
25%
Spin Entropy
25%
Operator Method
25%
Kondo Lattice
25%
SU(4)
25%
Positive Semidefinite
25%
Heisenberg
25%
Accidental Degeneracy
25%
Exact Limits
25%
Magic Angle
25%
Bond Operator
25%
Twisted Bilayer Graphene
25%
Schrieffer-Wolff Transformation
25%
Chemistry
Ground State
100%
Lattice Model
100%
Graphene
100%
Antiferromagnetic
25%
Flavouring Agent
25%
Engineering
Graphene
100%
Ground State
100%
Excitation Spectrum
25%
Heisenberg Box
25%
Operator Method
25%
Physics
Graphene
100%
Ground State
100%
Fermion
50%
Physics
25%