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Volumn 120, Issue 12, 1998, Pages 2733-2745

Infrared and computational studies of spontaneously adsorbed amine reagents on YBa2Cu3O7: Structural characterization of monolayers atop anisotropic superconductor surfaces

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTATIONAL METHODS; FOURIER TRANSFORM INFRARED SPECTROSCOPY; HIGH TEMPERATURE SUPERCONDUCTORS; MOLECULAR DYNAMICS; MOLECULAR STRUCTURE; MONOLAYERS; ORGANIC COMPOUNDS; POLYCRYSTALLINE MATERIALS; SUPERCONDUCTIVITY; SURFACES; TEMPERATURE PROGRAMMED DESORPTION; YTTRIUM COMPOUNDS;

EID: 0032054676     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja9706920     Document Type: Article
Times cited : (18)

References (99)
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    • note
    • 7 samples, it is necessary to maximize the reflectivity and the sample size.
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    • note
    • c film. Roughening of the substrate with etching and thermal annealing steps reduces the magnitude of these interference fringes and can improve the appearance of the spectral features.
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    • note
    • Energies for 1×1, 2×2, and √2×√2R45° amine adlayers were calculated for various plausible geometries. Here, tables analogous to those described in the text were created to evaluate the energy of amine reagents in environments having all the nearest neighbors present. For the 1×1 case, overlap between neighboring chains precluded any molecular tilt. For the 2×2 case, large separation between sites limited favorable molecular interactions. Comparison of the energies for the various optimized monolayer structures suggests that the √2× √2R45° adlayer is more stable than either the 1×1 or 2×2 arrangements.


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