The structure and reactivity of heterogeneous surfaces and study of the geometry of surface complexes: Progress report, January 1, 1988--December 31, 1988
This research covers a wide range and scope of material systems and phenomena encompassing a number of systems in various degrees of aggregation (finite clusters and extended systems), thermodynamic states (liquids and solids under equilibrium and non-equilibrium conditions), and characteristic interactions (metals, ionic and polar materials and covalent interactions). Progress during this report is discussed under the following categories: (1) Materials preparation and growth: Liquid-phase and Molecular Beam Epitaxial growth of semiconductors (silicon); amorphous semiconductors. (2) Material surfaces and interfaces: Phase-transformations (surface premelting); surface probes (tip-substrate interactions in Atomic Force Microscopy, AFM); stressed interfaces and interphase (solid-liquid at equilibrium and under shear stress). (3) Finite aggregates: The structure and dynamics of ground state and excited state atomic and molecular clusters and fragmentation dynamics; size dependence of physical phenomena in finite material systems; excess electron attachment, solvation, migration and spectroscopy in polar molecular clusters (water and ammonia); quantum droplets ((/sup 4/He)/sub n/, 50 < n < 300) at finite temperature.
- Research Organization:
- Georgia Inst. of Tech., Atlanta (USA). School of Physics
- DOE Contract Number:
- FG05-86ER45234
- OSTI ID:
- 6532940
- Report Number(s):
- DOE/ER/45234-3; ON: DE89005726
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMMONIA
SOLVATED ELECTRONS
PHASE TRANSFORMATIONS
DYNAMICS
SILICON
CRYSTAL GROWTH
WATER
DROPLETS
EXCITED STATES
GROUND STATES
HELIUM
INTERFACES
MOLECULAR BEAM EPITAXY
PROGRESS REPORT
QUANTUM MECHANICS
SEMICONDUCTOR MATERIALS
SIMULATION
SURFACES
DOCUMENT TYPES
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY LEVELS
EPITAXY
FERMIONS
FLUIDS
GASES
HYDRIDES
HYDROGEN COMPOUNDS
LEPTONS
MATERIALS
MECHANICS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NONMETALS
OXYGEN COMPOUNDS
PARTICLES
RARE GASES
SEMIMETALS
640302* - Atomic
Molecular & Chemical Physics- Atomic & Molecular Properties & Theory
360601 - Other Materials- Preparation & Manufacture
400201 - Chemical & Physicochemical Properties