61. Structure of solids and liquids; crystallography (for surface, interface, and thin film structure, see 68) ( 0 Dok.)

• 61.10.-i X-ray diffraction and scattering (for x-ray diffractometers, see 07.85.J; for x-ray studies of crystal defects, see 61.72.D, F) ( 0 Dok. )

• 61.12.-q Neutron diffraction and scattering ( 0 Dok. )

• 61.14.-x Electron diffraction and scattering (for electron diffractometers, see 07.65) ( 0 Dok. )

• 61.16.-d Electron, ion, and scanning probe microscopy (for electron Microscopy of crystal defects, see 61.72.F) ( 0 Dok. )

• 61.18.-j Other methods of structure determination ( 0 Dok. )

• 61.20.-p Structure of liquids ( 0 Dok. )

• 61.25.-f Studies of specific liquid structures ( 0 Dok. )

• 61.30.-v Liquid crystals (for phase transitions in liquid crystals, see 64.70.M) ( 0 Dok. )

• 61.41.+e Polymers, elastomers, and plastics (for materials synthesis, treatments, testing and analysis, see 81.05.L; for rheology of polymers, see 83; for biopolymers, see 87.15) ( 0 Dok. )

• 61.43.-j Disordered solids ( 0 Dok. )

• 61.44.-n Semi-periodic solids ( 0 Dok. )

• 61.46.+w Clusters, nanoparticles, and nanocrystalline materials (see also 36.40 Atomic and molecular clusters) ( 0 Dok. )

• 61.48.+c Fullerenes and fullerene-related materials ( 0 Dok. )

• 61.50.-f Crystalline state ( 0 Dok. )

• 61.66.-f Structure of specific crystalline solids (for surface structure, see 68.35.B) ( 0 Dok. )

• 61.68.+n Crystallographic databases ( 0 Dok. )

• 61.72.-y Defects and impurities in crystals; microstructure (for radiation induced defects, see 61.80; for defects in surfaces, interfaces and thin films, see 68.35.D and 68.55.L; see also 85.40.R impurity doping, diffusion and ion implantation technology) ( 0 Dok. )

• 61.80.-x Physical radiation effects, radiation damage (for chemical radiation effects, see 82.50) Radiation treatments, see 81.40.W ( 0 Dok. )

• 61.82.-d Radiation effects on specific materials ( 0 Dok. )

• 61.85.+p Channeling phenomena (blocking, energy loss, etc.) ( 0 Dok. )

• 61.90.+d Other topics in structure of solids and liquids (restricted to new topics in section 61) ( 0 Dok. )