George Comşa

George Comşa's AcademicInfluence.com Rankings

George Comşa

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Physics

George Comşa's Degrees

PhD Physics University of Bucharest
Masters Physics University of Bucharest
Bachelors Physics University of Bucharest

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George Comşa's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

STM investigation of single layer graphite structures produced on Pt(111) by hydrocarbon decomposition (1992) (444)
Dynamical parameters of desorbing molecules (1985) (309)
Scattering of thermal energy atoms from disordered surfaces (1989) (193)
The purely “fast” distribution of H2 and D2 molecules desorbing from Cu(100) and Cu(111) surfaces (1982) (181)
Temperature dependence of the sputtering morphology of Pt(111) (1991) (153)
The homoepitaxial growth of Pt on Pt(111) studied with STM (1992) (149)
He-scattering investigation of CO migration on Pt(111) (1982) (144)
Scattering of Thermal Energy Atoms (1989) (139)
Determination of surface reconstruction with impact-collision alkali ion scattering (1984) (138)
Catalytic oxidation of carbon monoxide on stepped platinum(111) surfaces (1977) (130)
The interaction of hydrogen with platinum(s)−9(111) × (111) studied with helium beam diffraction (1981) (127)
Direct observation of surface reactions by scanning tunneling microscopy: Ethylene→ethylidyne→carbon particles→graphite on Pt(111) (1992) (123)
MEASUREMENT OF ENERGIES CONTROLLING RIPENING AND ANNEALING ON METAL SURFACES (1998) (120)
HOW SENSITIVE IS EPITAXIAL GROWTH TO ADSORBATES (1998) (118)
Magnetically suspended cross‐correlation chopper in molecular beam‐surface experiments (1981) (113)
The angular dependence of flux, mean energy and speed ratio for D2 molecules desorbing from a Ni(111) surface (1979) (110)
Coherence length and/or transfer width? (1979) (102)
Fast deuterium molecules desorbing from metals (1980) (94)
The Ice Bilayer on Pt(111): Nucleation, Structure and Melting (1997) (94)
Scattering cross section of low-coverage CO on Pt(111) for thermal He and H/sub 2/ beams (1982) (88)
Bulk dissolved Si as a cause of the “oxide” formation on Pt(111) surfaces (1981) (85)
Direct Evidence for Two-Dimensional Xe Gas-Solid Phase Transition on Pt(111) by Means of Thermal He Scattering (1983) (81)
Temperature dependency of the initial sticking probability of H2 and CO on Pt(111) (1985) (79)
Surface and subsurface oxygen adsorbed on Pt(111) (1980) (78)
Registry effects in the thermodynamic quantities of Xe adsorption on Pt(111) (1988) (75)
"Two-Layer" Behavior of the Pt(111) Surface during Low-EnergyAr+-Ion Sputtering at High Temperatures (1984) (71)
Helium scattering as a probe of the clean and adsorbate covered Pt(111) surface (1982) (69)
Conventional and manipulated growth of Cu-Cu(111) (1996) (69)
Simple model for the desorption of hydrogen from Ni surfaces (1977) (66)
New phenomena in homoepitaxial growth of metals (1991) (66)
High-resolution He-scattering apparatus for gas-surface interaction studies (1986) (64)
New concepts for controlled homoepitaxy (1995) (64)
Velocity Distribution ofH2, HD, andD2Molecules Desorbing from Polycrystalline Nickel Surfaces (1977) (63)
Calibration of a spinning rotor gas friction gauge against a fundamental vacuum pressure standard (1980) (61)
Determination of Step Free Energies from Island Shape Fluctuations on Metal Surfaces (1999) (61)
No coarsening in Pt(111) homoepitaxy (1999) (59)
Pt(111) network reconstruction: structure, growth and decay (1995) (59)
The scanning tunneling microscope as a means for the investigation of ion bombardment effects on metal surfaces (1993) (57)
The dissociative adsorption of hydrogen on defect-‘free’ Pt(111) (2010) (57)
The scattering of thermal He atoms at ordered and disordered surfaces (1985) (55)
Local Correlation during Ostwald ripening of two-dimensional islands on Ag(111) (1999) (53)
Scanning tunneling microscopy and spectroscopy of iron suicide epitaxially grown on Si(111) (1993) (52)
Temperature dependent morphological evolution of Pt(111) by ion erosion: destabilization, phase coexistence and coarsening (2001) (51)
Angular Distribution of Scattered and Desorbed Atoms from Specular Surfaces (1968) (51)
Surfactant-Induced Layer-by-Layer Growth on a Highly Anisotropic Substrate: Co/Cu(110) (1998) (50)
Dynamics and stability of nanostructures on metal surfaces (1999) (50)
A thermal He scattering study of CO adsorption on Pt(111) (1984) (49)
Observation of sputtering damage on Au(111) (1990) (49)
Helium scattering and work function investigation of CO adsorption on Pt(111) and vicinal surfaces (1982) (48)
Symmetry breaking commensurate-incommensurate transition of monolayer Xe physisorbed on Pt(111) (1987) (46)
Nucleation and morphology of homoepitaxial Pt(111)-films grown with ion beam assisted deposition (1996) (46)
Autocatalytic behavior and role of oxygen diffusion in the hydrogen-oxygen reaction on Pt(111) (1992) (45)
Direct evidence for terrace bending from He beam scattering on Pt(997) (1979) (45)
Design principles of a variable temperature scanning tunneling microscope (1995) (44)
Kinetics of island diffusion on Cu(111) and Ag(111) studied with variable-temperature STM (2000) (43)
Ion scattering spectroscopy in the impact collision mode (ICISS): Surface structure information from noble gas and alkali-ion scattering (1986) (43)
Adsorption, 2D phase transition and commensurate 2D phase of Xe on Pt(111) (1985) (42)
Nucleation of homoepitaxial films grown with ion assistance on Pt(111) (1995) (41)
A molecular beam study of the interaction between hydrogen and the Pt(111) surface (1989) (41)
Morphological effects induced by the formation of a Pt-adatom lattice gas on Pt(111) (1992) (41)
High efficiency molecular‐beam ionization detector with short ionization region (1994) (40)
STM investigation of the adsorption and temperature dependent reactions of ethylene on Pt(111) (1991) (40)
He-beam scattering study of the dynamics of oxygen induced reconstruction of the Pt(997) surface: I. Dynamics of double step formation and destruction (1982) (39)
Lateral distribution of coadsorbed H and CO on Pt(111) studied by teas (1987) (39)
Characterization by scanning tunneling microscopy of the oxygen induced restructuring of Au(111) (1996) (39)
Collective effects in the adatom production by 4.5 keV rare-gas impacts on Pt(111): A low-temperature scanning tunnelling microscopy analysis (1999) (39)
The concept of two mobilities in homoepitaxial growth (1995) (38)
The effect of surface reconstruction on the growth mode in homoepitaxy (1996) (38)
Real-space investigation of the oxygen induced Ni(110)−(2 × 1) phase (1985) (38)
Thermal energy helium scattering from CO/Pt(111) at very low coverages (1983) (38)
Surface structure of NiAl(111) determined by ion scattering and scanning tunneling microscopy (1990) (37)
The dissociative adsorption of hydrogen on Pt(111): actuation and acceleration by atomic defects. (2011) (35)
Investigation of a randomly stepped Pt(111) surface using thermal energy atom scattering (TEAS) (1985) (35)
Dynamics of vacancy island coalescence on Ag(111) (1998) (35)
H-induced (1 × 2) reconstruction of the Cu(110) surface: structure and deconstruction kinetics (1990) (34)
Stability of two-dimensional clusters on crystal surfaces: from Ostwald ripening to single-cluster decay (1998) (33)
Formation of islands consisting of repelling adsorbates (1987) (33)
Kinetics of fast island decay on Ag(111) (2001) (33)
Effect of energetic particles on island formation in sputter deposition of Pt on Pt(111) (1997) (32)
A molecular beam study of the interaction of CO molecules with a Pt(111) surface using pulse shape analysis (1987) (32)
An ultrahigh vacuum scanning tunneling microscope for use at variable temperature from 10 to 400 K (1994) (32)
Cross sections for He scattering from surface imperfections: Vacancies and CO adsorbates on Pt(111) (1988) (31)
180° low‐energy impact collision ion scattering spectroscopy (1990) (31)
Step edge diffusion and step atom detachment in surface evolution: ion erosion of Pt(111). (2001) (31)
ORIENTATIONAL ORDERING ON A CORRUGATED SUBSTRATE : NOVEL PINWHEEL STRUCTURE FOR N2 ADSORBED ON CU(110) (1997) (30)
Determination of iodine adlayer structures on Au(111) by scanning tunneling microscopy (1997) (30)
Low temperature measurements of the rotational relaxation in D2 free jets (1985) (29)
The hydrogen-oxygen reaction on the Pt(111) surface; influence of adsorbed oxygen on the sticking of hydrogen (1990) (28)
Preparation of well-ordered cobalt nanostructures on Au(111) (1997) (27)
Electron density contour smoothening for epitaxial Ag islands on Ag(100) (1995) (27)
Scattering of thermal He from disordered surfaces (1985) (26)
On the shape of the in-phase TEAS oscillations during epitaxial growth of Pt(111) (1992) (26)
The deuterium—oxygen reaction on Pt(111): Influence of atomic steps (1990) (25)
Surface morphology of Au(111) after exposure to oxygen at high temperature and pressure (1996) (24)
Debye-Waller factor for He/Pt(111) (1989) (24)
Low‐energy helium nozzle beam (1985) (24)
Alkali ion impact collision scattering at Pt(111) (1985) (24)
Xe monolayer adsorption on Cu(110): Experiments and interaction calculations (1994) (24)
Thermodynamic measurements of Xe-adsorption on Pt(111) (1986) (23)
Sputtering damage in the Pt(111) surface by He+ ion bombardment (1991) (22)
EFFECT OF THE STRUCTURAL ANISOTROPY AND LATERAL STRAIN ON THE SURFACE PHONONS OF MONOLAYER XENON ON CU(110) (1994) (22)
Two‐dimensional phase transitions studied by thermal He scattering (1988) (22)
Does the surface temperature influence the cross section of random isolated adsorbates in thermal He scattering (1984) (22)
A scanning tunneling microscopy study of the adsorption of Xe on Pt(111) up to one monolayer (1995) (22)
Stability of disk and stripe patterns of nanostructures at surfaces (1995) (21)
Preparation of atomically flat Co(110) films on Cu(110) (1998) (21)
Surface scattering of thermal energy He beams: from the proof of the wave nature of atoms to a versatile and efficient surface probe (1994) (20)
Comment on "Direct Measurement of the Longitudinal Coherence Length of a Thermal Neutron Beam" (1983) (20)
Coarsening Mechanisms in Surface Morphological Evolution (2002) (20)
Influence of a very low density of defects on the deuterium—oxygen reaction on Pt(111) (1990) (20)
Adsorption and structure of N2 on copper(110) (1997) (20)
He-beam scattering study of the dynamics of oxygen induced reconstruction of the Pt(997) surface: II. Shape changes of the He diffraction patterns induced by reconstruction and oxygen adsorption (1982) (19)
Spatial Initial Distribution of Ions in an MBAG and the Modulation Factor (1971) (19)
Refraction effects in atom scattering from stepped surfaces (1982) (18)
Adsorption and decomposition of NO2 on Pt(100) (1985) (18)
Temperature Dependence of the Work Function of Metals (Mo,Ni) (1961) (18)
Features of ion scattering spectroscopy in impact collision mode: Focusing and neutralization effects; ordered and disordered structure determination (1986) (18)
Influence of mode polarizations on the inelastic He-scattering spectrum: High-order commensurate Xe monolayer adsorbed on Cu(110) (1997) (17)
Growth and morphology of Ni films on Cu(111) (1998) (17)
Reconstruction of the oxygen covered Cu3Au(110) surface investigated by low energy ion back scattering and LEED (1995) (16)
Nitrogen induced Ni(110)-(2 × 3) reconstruction: a structure determination with ion scattering spectroscopy and scanning tunneling microscopy (1993) (16)
Growth and stability of cobalt nanostructures on gold (111) (1997) (16)
A new type of ionization-pump (1957) (15)
Epitaxial iron silicides on Si(001): an investigation with scanning tunneling microscopy and spectroscopy (1993) (15)
Structure of the hydrogen covered Cu(110) surface studied with thermal energy helium scattering (1993) (14)
Structure and phase transitions of xenon monolayers on Cu(110) (1996) (14)
Adsorption of hydrogen on Pt(100) at low temperatures (1995) (13)
COMMENT ON : SELF-DIFFUSION AND DYNAMIC BEHAVIOR OF ATOMS AT STEP EDGES ONIRIDIUM SURFACES BY T.-Y. FU ET AL. (1998) (13)
Morphology of a Pt(111) surface during its growth from the vapor phase (1990) (13)
STM-imaging of nanostructure dynamics on Ag(111)-experimental challenges and solutions (1996) (13)
How to use oxygen and atomic hydrogen to prepare atomically flat fcc Co(110) films (1999) (13)
Surface phonon dispersion of clean and oxygen covered Pt(111) (1986) (12)
Temperature dependence of the xenon-layer morphology on platinum (111) studied with scanning tunneling microscopy (1995) (12)
The Novaco-McTague rotated Xe monolayer on Pt(111): A high-order commensurate locked phase (1986) (12)
Anharmonic linewidth broadening of surface phonons (1990) (12)
Chapter 3 Epitaxial growth modes far from equilibrium (1997) (11)
Hydrogen adsorption on clean and oxygen covered Pt(111) (1991) (11)
Island mediated sticking of the rare gases on Cu(110) (1994) (11)
Vibrational spectroscopy of rare gas adlayers (1990) (10)
Onset of Interstitial Diffusion Determined by Scanning Tunneling Microscopy (1997) (10)
He beam scattering and LEED evidence for partial facetting of a Pt(997) surface (1980) (10)
Electron stimulated desorption of molecular and dissociated NO on the Pt(100) surface (1984) (10)
1-Dimensional nanoparticles – A brief critical review on biological, medical, and toxicological aspects (2013) (10)
Effect of the diffusion anisotropy on the nucleation and growth of xenon on Cu(110) (2000) (9)
Manipulation of growth modes in heteroepitaxy: Ni/Cu(111) (1996) (9)
The applicability of the Debye-Waller factor to the He scattering from metal surfaces (1973) (9)
Ion Collection in the Bayard‐Alpert Gauge (1966) (8)
Smooth growth fronts in Si/Ge heteroepitaxy by kinetic growth manipulation (1998) (8)
The influence of enhanced nucleation on thin-film growth (1997) (8)
Resonant states of helium atoms scattered from the Pt(110)‐(1×2) surface (1995) (8)
Physisorbed Rare Gas Adlayers (1988) (7)
He scattering from random adsorbates, disordered compact islands, and fractal submonolayers: Intensity manifestations of surface disorder (1997) (7)
Surface science lettersLocal adlayer order and sticking probability: D2 adsorption on p(2 × 2)O/Pt(111) (1991) (7)
The rate of impingement of a molecular beam (1969) (7)
Structure and dynamics of rare-gas layers on Pt(111) (1987) (7)
Row pairing induced by hydrogen adsorption at Pd(110) (1986) (7)
Preparation and thermal stability of the clean metastable Pt(100)−(1×1) surface: a thermal energy helium scattering study (1995) (6)
On the formation of Ar-Kr two-dimensional mixtures (1993) (6)
Structure investigation of the nitrogen induced Cu(110)-(2 × 3) phase with 180° low energy impact collision ion scattering spectroscopy (1991) (6)
Lateral distribution of ion bombardment induced defects on Pt(111) at 80 K (1985) (6)
Erratum: ``An ultrahigh vacuum scanning tunneling microscope for use at variable temperature from 10 to 400 K'' [Rev. Sci. Instrum. 65, 3204 (1994)] (1995) (6)
Influence of film structure on the surface vibrations of Co/Au(111) (1999) (5)
COMBINED X-RAY AND STM STUDY OF THE OXYGEN-INDUCED RESTRUCTURING OF THE Au(111) SURFACE (1997) (5)
Ion Collection in Bayard–Alpert Gauges (1972) (5)
Adsorption measurements in high vacuum (1964) (5)
The pre-exponential factor in the desorption from glass of ionically pumped noble gases (1968) (5)
He scattering from substitutionally disordered mixed monolayers: Experimental and theoretical studies of Xe+Kr on Pt(111) (1993) (5)
Surface Structure Investigation with Ion Scattering and Scanning Tunneling Microscopy at Oxygen and Nitrogen Covered CU3Au Surfaces (1996) (4)
Local adlayer order and sticking probability: D2 adsorption on p(2 × 2)O/Pt(111) (1991) (4)
Dynamic atom optics to produce ultraslow, ultracold helium atoms: design study and possible applications (1997) (3)
TWO-DIMENSIONAL ISLAND SHAPES (1999) (3)
Absolute determination of molecular‐beam intensities (1985) (3)
A microchopper for neutral beams (1994) (3)
Diffusion and Stability of Large Clusters on Crystal Surfaces (1997) (3)
Ripening Mechanisms in Ultrathin Metal Films (1998) (3)
Modulated Structures of Adsorbed Rare Gas Monolayers (1991) (3)
The Effect of Deposition Method on Growth Morphology - Comparison of Molecular Beam Epitaxy, Ion Beam Assisted Deposition and Sputter Deposition (1998) (3)
On the origin of the low-temperature (≈ 150 K) H2 desorption from Pt(111) (1986) (3)
Structures of physisorbed monolayers on an anisotropic substrate: Xe and N2 on Cu(110) (1995) (3)
Surface science lettersSurface and subsurface oxygen adsorbed on Pt(111) (1980) (3)
Reply to comments by D.R. Frankl on “coherence length and/or transfer width?” (1979) (3)
Epitaxial growth modes far from equilibrium in: Growth and Properties of Ultrathin Epitaxial Layers (1997) (3)
Deuterium-Oxygen Reaction on Pt(111) Catalysis by Defects (1991) (2)
A new method of operating an omegatron to improve performance: the time separation of processes (1969) (2)
Adsorption and structure of CF4 on Cu(110) (1996) (2)
The Coherence Length in Molecular and Electron Beam Diffraction (1982) (2)
Helium‐Scattering Studies of the Dynamics and Phase Transitions of Surfaces (2007) (2)
MASS SPECTROMETER OF THE OMEGATRON TYPE (1961) (1)
The scattering mechanism (1989) (1)
Physisorbed Rare Gas Adlayers Studied with Helium Scattering (1992) (1)
Instabilities and Kinetic Anisotropies as Determining Factors of Island Growth-Shapes (1997) (1)
Structure and Phase Transitions of Incommensurate Xe Layers on Pt(111) (1988) (1)
On an apparent restriction in the inelastic He scattering from close packed metal surface: A comment (1985) (1)
The role of precursor states in adsorption, surface reactions and catalysis (2017) (0)
Elasticity effect in rotational decay experiments (1973) (0)
Atomic Beam Scattering Studies of Ordering at Surfaces (1990) (0)
Ripening and annealing phenomena on Ag(111) (1997) (0)
1998 Structure Determination of Disordered Metallic Sub-Monolayers by Helium Scattering: A Theoretical and Experimental Study (2018) (0)
The collection of energetic ions in the Bayard-Alpert gauge (1967) (0)
Physics of interfaces and ultra thin films (1997) (0)
TEAS as a probe of thermal roughness on monocrystalline surfaces (1989) (0)
TEAS as a probe of surface coverage (1989) (0)
SYMPOSIUM EE Organic/Inorganic Hybrid Materials (2004) (0)
He-beam scattering study of the dynamics of oxygen induced reconstruction of the Pt(997) surface (1982) (0)
Ultra-Cold Helium Atom Beams - A Design Study (1996) (0)
Elementary diffusion processes and growth of Si on Ge(100) (1997) (0)
Anomalous preexponential factor for hydrogen desorption from platinum single crystals (1981) (0)
The Role of Kinetic Effects in the Growth of Pt on Pt(111) (1993) (0)
High Resolution He-Scattering Studies of Physisorbed Films (1988) (0)
Diffuse scattering as a probe of the lateral distribution in heterogeneous systems (1989) (0)
The Behavior of Ions in a BAG Structure (1971) (0)
A direct comparison between the scattering of light gases from free CO and from CO adsorbed on the Pt(111) surface (1987) (0)
Motion of vacancy islands on Cu(111) studies with STM (1997) (0)
Summary Abstract: Molecular beam scattering from Pt(111) at initial stages of CO adsorption (1983) (0)
The characterization of stepped surfaces by means of coherent and diffuse helium scattering (1989) (0)
Temperature dependence of the desorption of argon ionically pumped in glass (1967) (0)
INITIAL ION-ENERGY DISTRIBUTION AND THE MEASUREMENT OF VERY LOW PRESSURE. I. (1966) (0)
RESEARCH NOTES: Desorption of ionically pumped argon from clean and metallized glass surfaces (1969) (0)
Dynamic coalescence of vacancy clusters on AG(111) (1997) (0)
Diffuse scattering as a tool to probe the lateral distribution of adatoms and vacancies (Homogeneous systems) (1989) (0)
TWO DISTINCT VELOCITY DISTRIBUTIONS IN THE FLUX OF DEUTERIUM DESORBING FROM METALS (1980) (0)
Rough interfaces in group IV semiconductor heteroepitaxy: cause and cure (1998) (0)
From kinetics and dynamics of Si dimer clusters to thick films of Si on Ge(100) (1997) (0)
ESD from NO and NO2 on Pt(100): Importance of Core-Level Assisted Ion Desorption and Application to the Investigation of NO2 Decomposition (1985) (0)
Mixtures of Kr and Xe physisorbed on Pt(111): a prototype of a stochastic two-dimensional alloy (1993) (0)
Smoluchowski effect for 2D Ag-islands on Ag(100) (1994) (0)

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