## 71.00.00 Electronic structure of bulk materials (see section 73 for electronic structure of surfaces, interfaces, low-dimensional structures, and nanomaterials; for electronic structure of superconductors, see 74.25.Jb)

- 71.10.-w Theories and models of many-electron systems (2)
- 71.15.-m Methods of electronic structure calculations (see also 31.15.-p Calculations and mathematical techniques in atomic and molecular physics) (2)
- 71.18.+y Fermi surface: calculations and measurements; effective mass, g factor
- 71.20.-b Electron density of states and band structure of crystalline solids
- 71.22.+i Electronic structure of liquid metals and semiconductors and their alloys
- 71.23.-k Electronic structure of disordered solids (1)
- 71.27.+a Strongly correlated electron systems; heavy fermions (1)
- 71.28.+d Narrow-band systems; intermediate-valence solids (for magnetic aspects, see 75.20.Hr and 75.30.Mb in magnetic properties and materials)
- 71.30.+h Metal-insulator transitions and other electronic transitions (1)
- 71.35.-y Excitons and related phenomena
- 71.36.+c Polaritons (including photon-phonon and photon-magnon interactions)
- 71.38.-k Polarons and electron-phonon interactions (see also 63.20.K- Phonon interactions in lattice dynamics)
- 71.45.-d Collective effects
- 71.55.-i Impurity and defect levels
- 71.60.+z Positron states (for positron annihilation, see 78.70.Bj)
- 71.70.-d Level splitting and interactions (see also 73.20.-r Surface and interface electron states; 75.30.Et Exchange and superexchange interactions)
- 71.90.+q Other topics in electronic structure (restricted to new topics in section 71)