Keyboard graph navigation: press N for concepts or E for relations; use arrow keys, Home, and End to move; Enter selects; Shift plus Enter selects and centers; plus and minus zoom; zero fits; Escape clears the selection. Use the visible viewport buttons as alternatives to dragging, wheel, and pinch gestures.
Canonical static concept record
Open this concept in the interactive graphRead the Markdown equivalent
The allowed electron energies as functions of crystal momentum in a periodic or approximately periodic solid. Band calculations depend on the Hamiltonian and approximation and need not capture strong correlation without additional treatment.
wp-physics-band-structurewp-physics-bloch-theoremtong-solid-state-physicsmit-theory-of-solidsEach relation below ends at this concept.
This is an authored directed relation from the source endpoint to the target endpoint.
A band insulator’s band structure has completely filled occupied bands separated from empty bands by an excitation gap at the chemical potential.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-electrical-insulatorwp-physics-band-structuretong-solid-state-physicsThis is an authored directed relation from the source endpoint to the target endpoint.
In the band-metal regime, the occupied bands are not separated from all unoccupied states by a gap at the chemical potential.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-electrical-conductorwp-physics-band-structuretong-solid-state-physicsThis is an authored directed relation from the source endpoint to the target endpoint.
The nearly-free approximation produces bands close to the free-electron parabola, with gaps opened where reciprocal-lattice scattering mixes degenerate plane waves.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-nearly-free-electronwp-physics-band-structuretong-solid-state-physicsThis is an authored directed relation from the source endpoint to the target endpoint.
Solving the periodic Hamiltonian in each crystal-momentum sector yields energy bands; the result belongs to the selected one-particle or mean-field model.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-band-structurewp-physics-bloch-theoremtong-solid-state-physicsThis is an authored directed relation from the source endpoint to the target endpoint.
A semiconductor has a band gap while temperature, doping, illumination, or electrostatic control can populate mobile conduction-band electrons or valence-band holes.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-semiconductorwp-physics-band-structuretong-solid-state-physicsThis is an authored directed relation from the source endpoint to the target endpoint.
Diagonalizing the Bloch Hamiltonian of a tight-binding model yields its band structure; it describes only the orbitals and interactions retained in that model.
The target represents a state, property, observable, or state-dependent description associated with the source system or theory.
wp-physics-tight-bindingwp-physics-band-structuretong-solid-state-physicsEach relation below starts at this concept.
No direct relations are authored in this direction.