60. CONDENSED MATTER: STRUCTURE, MECHANICAL AND THERMAL PROPERTIES

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

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)
61.10.Dp  Theories of diffraction and scattering
61.10.Eq  X-ray scattering (including small-angle scattering)
61.10.Ht  X-ray absorption spectroscopy: EXAFS, NEXAFS, XANES, etc.
61.10.Kw  X-ray reflectometry (surfaces, interfaces, films)
61.10.Nz  Single-crystal and powder diffraction
61.10.Yh  Other x-ray techniques for structure analysis

61.12.-q  Neutron diffraction and scattering
61.12.Bt  Theories of diffraction and scattering
61.12.Ex  Neutron scattering techniques (including small-angle scattering)
61.12.Ha  Neutron reflectometry
61.12.Ld  Single-crystal and powder diffraction
61.12.Yp  Other neutron diffraction and scattering techniques for structure
          analysis

61.14.-x  Electron diffraction and scattering
          (for electron diffractometers, see 07.65)
61.14.Dc  Theories of diffraction and scattering
61.14.Hg  Low-energy electron diffraction (LEED) and reflection high-energy
          electron diffraction (RHEED)
61.14.Lj  Convergent-beam electron diffraction, selected-area electron
          diffraction, nanodiffraction
61.14.Nm  Electron holography
61.14.Qp  X-ray photoelectron diffraction
61.14.Rq  Other electron diffraction and scattering techniques for
          structure analysis

61.16.-d  Electron, ion, and scanning probe microscopy
          (for electron microscopy of crystal defects, see 61.72.F)
61.16.Bg  Transmission, reflection and scanning electron microscopy
          (including EBIC)
61.16.Ch  Scanning probe microscopy: scanning tunneling, atomic force,
          scanning optical, magnetic force, etc.
61.16.Fk  Field emission and field-ion microscopy
......    EPR and NMR methods for defect structures, see 61.72.H
61.16.Ms  Scanning Auger microscopy, photoelectron microscopy
61.16.Yc  Other electron, ion and scanning probe microscopies

61.18.-j  Other methods of structure determination
61.18.Bn  Atom, molecule, and ion scattering
61.18.Fs  Magnetic resonance techniques; Moessbauer spectroscopy

61.20.-p  Structure of liquids
61.20.Gy  Theory and models of liquid structure
61.20.Ja  Computer simulation of liquid structure
61.20.Lc  Time-dependent properties; relaxation
          (for glass transitions, see 64.70.P)
61.20.Ne  Structure of simple liquids
61.20.Qg  Structure of associated liquids: electrolytes, molten salts, etc.

61.25.-f  Studies of specific liquid structures
61.25.Bi  Liquid noble gases
61.25.Em  Molecular liquids
61.25.Hq  Macromolecular and polymer solutions; polymer melts; swelling
61.25.Mv  Liquid metals and alloys

61.30.-v  Liquid crystals
          (for phase transitions in liquid crystals, see 64.70.M)
61.30.Cz  Theory and models of liquid crystal structure
61.30.Eb  Experimental determinations of smectic, nematic, cholesteric, and
          other structures
61.30.Gd  Orientational order of liquid crystals; electric and magnetic
          field effects on order
61.30.Jf  Defects in liquid crystals

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)

61.43.-j  Disordered solids
61.43.Bn  Structural modeling: serial-addition models, computer simulation
61.43.Dq  Amorphous semiconductors, metals, and alloys
61.43.Er  Other amorphous solids
61.43.Fs  Glasses
61.43.Gt  Powders, porous materials
61.43.Hv  Fractals; macroscopic aggregates (including diffusion-limited
          aggregates)

61.44.-n  Semi-periodic solids
61.44.Br  Quasicrystals
61.44.Fw  Incommensurate crystals

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

61.48.+c  Fullerenes and fullerene-related materials

61.50.-f  Crystalline state
61.50.Ah  Theory of crystal structure, crystal symmetry; calculations and
          modeling
......    Crystal growth, see 81.10
61.50.Ks  Crystallographic aspects of phase transformations; pressure
          effects
          (see also 81.30.H)
61.50.Lt  Crystal binding; cohesive energy
61.50.Nw  Crystal stoichiometry

61.66.-f  Structure of specific crystalline solids
          (for surface structure, see 68.35.B)
61.66.Bi  Elemental solids
61.66.Dk  Alloys
61.66.Fn  Inorganic compounds
61.66.Hq  Organic compounds
......    Quantum crystals, see 67.80.C

61.68.+n  Crystallographic databases

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)
61.72.Bb  Theories and models of crystal defects
61.72.Cc  Kinetics of defect formation and annealing
61.72.Dd  Experimental determination of defects by diffraction and
          scattering
61.72.Ff  Direct observation of dislocations and other defects (etch pits,
          decoration, electron microscopy, x-ray topography, etc.)
61.72.Hh  Indirect evidence of dislocations and other defects (resistivity,
          slip, creep, strains, internal friction, EPR, NMR, etc.)
61.72.Ji  Point defects (vacancies, interstitials, color centers, etc.) and
          defect clusters
61.72.Lk  Linear defects: dislocations, disclinations
61.72.Mm  Grain and twin boundaries
61.72.Nn  Stacking faults and other planar or extended defects
61.72.Qq  Microscopic defects (voids, inclusions, etc.)
61.72.Ss  Impurity concentration, distribution, and gradients
          (for impurities in thin films, see 68.55.L; see also 66.30.J
          Diffusion of impurities)
61.72.Tt  Doping and impurity implantation in germanium and silicon
61.72.Vv  Doping and impurity implantation in III-V and II-VI
          semiconductors
61.72.Ww  Doping and impurity implantation in other materials
61.72.Yx  Interaction between different crystal defects; gettering effect

61.80.-x  Physical radiation effects, radiation damage
          (for chemical radiation effects, see 82.50)
......    Radiation treatments, see 81.40.W
61.80.Az  Theory and models of radiation effects
61.80.Ba  Ultraviolet, visible, and infrared radiation effects (including
          laser radiation)
61.80.Cb  X-ray effects
61.80.Ed  gamma ray effects
61.80.Fe  Electrons and positron radiation effects
61.80.Hg  Neutron radiation effects
61.80.Jh  Ion radiation effects
          (for ion implantation, see 61.72.T, V, W)
61.80.Lj  Atom and molecule irradiation effects
......    Channeling, blocking, and energy loss of particles, see 61.85

61.82.-d  Radiation effects on specific materials
61.82.Bg  Metals and alloys
61.82.Fk  Semiconductors
61.82.Ms  Insulators
61.82.Pv  Polymers, organic compounds
61.82.Rx  Nanocrystalline materials

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

61.90.+d  Other topics in structure of solids and liquids

62.       Mechanical and acoustical properties of condensed matter
          (for nonlinear acoustics of solids, see 43.25.D in acoustics
          appendix; for mechanical and acoustical properties of interfaces
          and thin films, see 68.35.G, 68.45.N and 68.60.B; for mechanical
          properties related to treatment conditions, see 81.70.J, L, N;
          for mechanical properties of rocks and minerals, see 91.60)

62.10.+s  Mechanical properties of liquids
          (for viscosity of liquids, see 66.20)

62.20.-x  Mechanical properties of solids
62.20.Dc  Elasticity, elastic constants
62.20.Fe  Deformation and plasticity (including yield, ductility, and
          superplasticity)
          (see also 83.50 Deformation; material flow)
62.20.Hg  Creep
62.20.Mk  Fatigue, brittleness, fracture, and cracks
62.20.Qp  Tribology and hardness
          (for tribology and hardness of shells, plates, and beams, see
          46.30.P; see also 83.50.L in rheology)

62.30.+d  Mechanical and elastic waves; vibrations
          (see also 43.40 Structural acoustics and vibration)

62.40.+i  Anelasticity, internal friction, stress relaxation, and
          mechanical resonances
          (see also 81.40.J Elasticity and anelasticity)

......    Thermomechanical effects, see 65.70

......    Magnetomechanical effects, see 75.80

......    Piezoelectric effects, see 77.65

......    Elastooptical effects, see 78.20.H

62.50.+p  High-pressure and shock-wave effects in solids and liquids
          (for high pressure apparatus and techniques, see 07.35)

62.60.+v  Acoustical properties of liquids
          (see also 43.35 in acoustics appendix)

......    Lattice dynamics, phonons, see 63

......    Second sound in quantum fluids, see 67.40.P

62.65.+k  Acoustical properties of solids

......    Magnetoacoustic effects, see 72.55 and 73.50.R

......    Acoustoelectric effects, see 72.50, 73.50.R, and 77.65.D

......    Acoustooptical effects, see 78.20.H

62.80.+f  Ultrasonic relaxation
          (see also 43.35.F Ultrasonic relaxation processes in liquids and
          solids in acoustics appendix; for ultrasonic attenuation in
          superconductors, see 74.25.L)

62.90.+k  Other topics in mechanical and acoustical properties of condensed
          matter

63.       Lattice dynamics
          (see also 78.30 Infrared and Raman spectra; for surface and
          interface vibrations, see 68.35.J and 68.45.K)

63.10.+a  General theory

63.20.-e  Phonons in crystal lattices
          (for phonons in superconductors, see 74.25.K; see also 43.35.G
          Phonons in crystal lattice, quantum acoustics in acoustics
          appendix)
63.20.Dj  Phonon states and bands, normal modes, and phonon dispersion
63.20.Kr  Phonon-electron and phonon-phonon interactions
63.20.Ls  Phonon interactions with other quasiparticles
63.20.Mt  Phonon-defect interactions
63.20.Pw  Localized modes
63.20.Ry  Anharmonic lattice modes

63.22.+m  Phonons in low-dimensional structures and small particles

63.50.+x  Vibrational states in disordered systems

63.70.+h  Statistical mechanics of lattice vibrations and displacive phase
          transitions

63.90.+t  Other topics in lattice dynamics

64.       Equations of state, phase equilibria, and phase transitions
          (see also 82.60 Chemical thermodynamics)

64.10.+h  General theory of equations of state and phase equilibria
          (see also 05.70.C Thermodynamic functions and equations of state)

64.30.+t  Equations of state of specific substances

64.60.-i  General studies of phase transitions
          (see also 63.75 Statistical mechanics of lattice vibrations and
          displacive phase transitions; for critical phenomena in solid
          surfaces and interfaces, and in magnetism, see 68.35.R, and
          75.40, respectively)
64.60.Ak  Renormalization-group, fractal, and percolation studies of phase
          transitions
          (see also 61.43.H Fractals; macroscopic aggregates)
64.60.Cn  Order-disorder transformations; statistical mechanics of model
          systems
64.60.Fr  Equilibrium properties near critical points, critical exponents
64.60.Ht  Dynamic critical phenomena
64.60.Kw  Multicritical points
64.60.Lx  Self-organized criticality; avalanche effect
64.60.My  Metastable phases
64.60.Qb  Nucleation
          (see also 82.60.N Thermodynamics of nucleation in physical
          chemistry)

64.70.-p  Specific phase transitions
64.70.Dv  Solid-liquid transitions
64.70.Fx  Liquid-vapor transitions
64.70.Hz  Solid-vapor transitions
64.70.Ja  Liquid-liquid transitions
64.70.Kb  Solid-solid transitions
          (see also 61.50.K Crystallographic aspects of phase
          transformations, pressure effects; 75.30.K and 77.80.B for
          magnetic and ferroelectric transitions, respectively; for
          material science aspects, see 81.30)
64.70.Md  Transitions in liquid crystals
64.70.Pf  Glass transitions
64.70.Rh  Commensurate-incommensurate transitions

64.75.+g  Solubility, segregation, and mixing; phase separation
          (see also 82.60.L Thermodynamics of solutions)

64.90.+b  Other topics in equations of state, phase equilibria, and phase
          transitions

65.       Thermal properties of condensed matter
          (see also 05.70 Thermodynamics and 44 Heat transfer, thermal and
          thermodynamic processes; for thermodynamic properties of quantum
          fluids and solids, see 67; for thermal properties of thin films,
          see 68.60.D; for nonelectronic thermal conduction, see 66.60,
          66.70, and 72.15; for thermal properties of rocks and minerals,
          see 91.60)

65.20.+w  Heat capacities of liquids

65.40.+g  Heat capacities of solids
          (for specific heat of superconductors, see 74.25.B; for specific
          heat of magnetic systems, see 75.40.C)

65.50.+m  Thermodynamic properties and entropy

65.70.+y  Thermal expansion and density changes; thermomechanical effects

65.90.+i  Other topics in thermal properties of condensed matter

66.       Transport properties of condensed matter (nonelectronic)

66.10.-x  Diffusion and ionic conduction in liquids
66.10.Cb  Diffusion and thermal diffusion
          (for osmosis, see also 82.65.F)
66.10.Ed  Ionic conduction

66.20.+d  Viscosity of liquids; diffusive momentum transport

66.30.-h  Diffusion in solids
          (for surface and interface diffusion, see 68.35.F)
66.30.Dn  Theory of diffusion and ionic conduction in solids
66.30.Fq  Self-diffusion in metals, semimetals, and alloys
66.30.Hs  Self-diffusion and ionic conduction in nonmetals
66.30.Jt  Diffusion of impurities
66.30.Lw  Diffusion of other defects
66.30.Ny  Chemical interdiffusion; diffusion barriers
66.30.Qa  Electromigration

66.35.+a  Quantum tunneling of defects

66.60.+a  Thermal conduction in nonmetallic liquids
          (for thermal conduction in liquid metals, see 72.15.C)

66.70.+f  Nonelectronic thermal conduction and heat-pulse propagation in
          solids; thermal waves
          (for thermal conduction in metals and alloys, see 72.15.C and
          72.15.E)

66.90.+r  Other topics in nonelectronic transport properties of condensed
          matter

67.       Quantum fluids and solids; liquid and solid helium
          (see also 05.30 Quantum statistical mechanics)

67.20.+k  Quantum effects on the structure and dynamics of nondegenerate
          fluids (e.g., normal phase liquid [supon]4[supoff]He)

67.40.-w  Boson degeneracy and superfluidity of [supon]4[supoff]He
67.40.Bz  Phenomenology and two-fluid models
67.40.Db  Quantum statistical theory; ground state, elementary excitations
67.40.Fd  Dynamics of relaxation phenomena
67.40.Hf  Hydrodynamics in specific geometries, flow in narrow channels
67.40.Jg  Ions in liquid [supon]4[supoff]He
67.40.Kh  Thermodynamic properties
67.40.Mj  First sound
67.40.Pm  Transport processes, second and other sounds, and thermal
          counterflow; Kapitza resistance
67.40.Rp  Films and weak link transport
67.40.Vs  Vortices and turbulence
67.40.Yv  Impurities and other defects

67.55.-s  Normal phase of liquid [supon]3[supoff]He
67.55.Cx  Thermodynamic properties
67.55.Fa  Hydrodynamics
67.55.Hc  Transport properties
67.55.Ig  Ions in normal liquid [supon]3[supoff]He
67.55.Jd  Collective modes
67.55.Lf  Impurities

67.57.-z  Superfluid phase of liquid [supon]3[supoff]He
67.57.Bc  Thermodynamic properties
67.57.De  Superflow and hydrodynamics
67.57.Fg  Textures and vortices
67.57.Gh  Ions in superfluid [supon]3[supoff]He
67.57.Hi  Transport properties
67.57.Jj  Collective modes
67.57.Lm  Spin dynamics
67.57.Np  Behavior near interfaces
67.57.Pq  Impurities

67.60.-g  Mixed systems; liquid [supon]3[supoff]He, [supon]4[supoff]He
          mixtures
67.60.Dm  He I-[supon]3[supoff]He
67.60.Fp  He II-[supon]3[supoff]He
67.60.Hr  Dilute superfluid [supon]3[supoff]He in He II
67.60.Js  Ions in liquid [supon]3[supoff]He-[supon]4[supoff]He mixtures

67.65.+z  Spin-polarized hydrogen and helium

67.70.+n  Films (including physical adsorption)

67.80.-s  Solid helium and related quantum crystals
67.80.Cx  Structure, lattice dynamics, and sound propagation
67.80.Gb  Thermal properties
67.80.Jd  Magnetic properties and nuclear magnetic resonance
67.80.Mg  Defects, impurities, and diffusion

67.90.+z  Other topics in quantum fluids and solids; liquid and solid
          helium

68.       Surfaces and interfaces; thin films and whiskers (structure and
          nonelectronic properties)

68.10.-m  Fluid surfaces and fluid-fluid interfaces
68.10.Cr  Surface energy (surface tension, interface tension, angle of
          contact, etc.)
68.10.Et  Interface elasticity, viscosity, and viscoelasticity
68.10.Gw  Interface activity, spreading
68.10.Jy  Kinetics (evaporation, adsorption, condensation, catalysis, etc.)
          (see also 82.65 Surface and interface chemistry)

68.15.+e  Liquid thin films

68.18.+p  Langmuir-Blodgett films
          (for methods of film deposition, see 81.15.L)

68.35.-p  Solid surfaces and solid-solid interfaces
68.35.Bs  Surface structure and topography
68.35.Ct  Interface structure and roughness
68.35.Dv  Composition; defects and impurities
68.35.Fx  Diffusion; interface formation
          (see also 66.30 Diffusion in solids)
68.35.Gy  Mechanical and acoustical properties; adhesion
68.35.Ja  Surface and interface dynamics and vibrations
68.35.Md  Surface energy; thermodynamic properties
          (see also 82.65.D Thermodynamics of surfaces and interfaces)
68.35.Rh  Phase transitions and critical phenomena
68.35.Wm  Other nonelectronic properties
......    heat transfer through interfaces, see 44.30

68.45.-v  Solid-fluid interfaces
68.45.Da  Adsorption and desorption kinetics; evaporation and condensation
          (for chemisorption, see 82.65.M)
68.45.Gd  Wetting
68.45.Kg  Dynamics; vibrations
68.45.Nj  Mechanical and acoustical properties
68.45.Ws  Other nonelectronic properties

68.55.-a  Thin film structure and morphology
          (for methods of thin film deposition, film growth and epitaxy,
          see 81.15)
68.55.Jk  Structure and morphology; thickness
68.55.Ln  Defects and impurities: doping, implantation, distribution,
          concentration, etc.
          (for diffusion of impurities, see 66.30)
68.55.Nq  Composition and phase identification

68.60.-p  Physical properties of thin films, nonelectronic
68.60.Bs  Mechanical and acoustical properties
68.60.Dv  Thermal stability; thermal effects
68.60.Wm  Other nonelectronic physical properties

68.65.+g  Low-dimensional structures (superlattices, quantum well
          structures, multilayers): structure, and nonelectronic properties

......    Growth of low-dimensional structures, see 81.15

68.70.+w  Whiskers and dendrites (growth, structure, and nonelectronic
          properties)

68.90.+g  Other topics in structure, and nonelectronic properties of
          surfaces and interfaces; thin films and whiskers