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Electronic band structures

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band gap
energy range in a solid where no electron states can exist
electronic band structure
describes the range of energies that an electron within the solid may have and ranges of energy that it may not have
Brillouin zone
primitive cell in the reciprocal space lattice of crystals
Fermi level
the total chemical potential for electrons (or electrochemical potential for electrons) and is usually denoted by µ or EF
free electron model
a simple model for the behaviour of valence electrons in a crystal structure of a metallic solid
density of states
system describes the number of states per interval of energy at each energy level available to be occupied
Fermi liquid
quantum account of metals and other matter in terms of interacting fermions
nearly free electron model
physical model of solid metals as electron gases
Tight binding
model of electronic band structures of solids
Crystal momentum
momentum-like vector describing motion of electrons in crystals; conserved up-to a discrete symmetry
surface states
electronic states at the surface of materials
band diagram
diagram plotting various key electron energy levels as a function of some spatial dimension, which is often denoted x
Indirect bandgap
Types of band gaps
Van Hove singularity
Density of states in a crystal
Quasi Fermi level
a term for the Fermi level (chemical potential of electrons) that describes the population of electrons separately in the conduction band and valence band, when their populations are displaced from equilibrium
field effect
Applied electric field conductivity change
Dirac cone
quantum effect in some non-metals that increases their conductivity to intermediate levels between insulators and conductors
energy gap
forbidden energy state in solid state physics