Zobrazeno 1 - 10
of 116
pro vyhledávání: '"H. Wiechert"'
Publikováno v:
Surface Science. 541:46-58
The growth and desorption of Xe monolayers on the basal plane of graphite has been investigated by real-space imaging using photoemission electron microscopy. Adsorption kinetics was studied at different substrate temperatures (39–65 K), correspond
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::91d7cf035750a995d4a14ceebb090afa
https://doi.org/10.1016/s0039-6028(03)00820-3
https://doi.org/10.1016/s0039-6028(03)00820-3
Autor:
Burkhard Krömker, H. Wiechert
Publikováno v:
Journal of Non-Crystalline Solids. :538-546
Heat-capacity and dielectric measurements have been performed to study orientational and dipolar order and disorder phenomena in submonolayer films of CO and binary mixtures of CO physisorbed on graphite and boron nitride (BN). With both methods tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a97871a42235b157eaa53df721a73ee
https://doi.org/10.1016/s0022-3093(02)01484-9
https://doi.org/10.1016/s0022-3093(02)01484-9
Publikováno v:
Physical Review Letters. 84:1954-1957
The structure and orientational ordering of N2O molecules physisorbed on graphite (0001) is investigated applying x-ray, neutron, and low-energy electron diffraction techniques. Combining the results of the three techniques, we find that N2O forms a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddfa2d64e141c23adf66f0a673f9585a
https://doi.org/10.1103/physrevlett.84.1954
https://doi.org/10.1103/physrevlett.84.1954
Autor:
K.-D. Kortmann, H. Wiechert
Publikováno v:
Surface Science. 441:65-83
A detailed heat capacity study has been performed to characterize the properties of pure CO and (CO) 1− x (Ar) x mixture films physisorbed on the basal planes of graphite. The phase diagram of CO monolayers will be presented. At T c =5.18 K a phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8abceeb7ba0f780ec394fa29f6b7d2f3
https://doi.org/10.1016/s0039-6028(99)00803-1
https://doi.org/10.1016/s0039-6028(99)00803-1
Autor:
Klaus–Dieter Kortmann, H. Wiechert
Publikováno v:
Journal of Low Temperature Physics. 111:561-568
Deuterium physisorbed on exfoliated graphite preplated by a krypton monolayer has been investigated by heat–capacity measurements in the complete submonolayer coverage range up to the initial stages of bilayer film formation. A detailed phase diagr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0da253d49679410c21a2af3ab01f5078
https://doi.org/10.1023/a:1022293316065
https://doi.org/10.1023/a:1022293316065
Publikováno v:
Physica B: Condensed Matter. :426-428
High-resolution quasielastic neutron scattering was used to study diffusive motions in two-dimensional liquid and solid phases of deuterium hydride submonolayers adsorbed on graphite (Papyex). For the first time it could be unambiguously clarified th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc542aa6ea20bee8b8af0e9ede4d265f
https://doi.org/10.1016/s0921-4526(02)02324-4
https://doi.org/10.1016/s0921-4526(02)02324-4
Autor:
Stefan-Alexander Arlt, H. Wiechert
Publikováno v:
Physical Review Letters. 71:2090-2093
Heat-capacity studies have been carried out on submonolayers of (CO${)}_{1\mathrm{\ensuremath{-}}\mathit{x}}$(${\mathrm{N}}_{2}$${)}_{\mathit{x}}$ mixtures physisorbed on graphite. We find that pure CO undergoes an end-to-end ordering transition at $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1102a60c075a8e75737a0474a2fd5926
https://doi.org/10.1103/physrevlett.71.2090
https://doi.org/10.1103/physrevlett.71.2090
Publikováno v:
Surface Science. :452-459
The phase diagram of HD monolayers physisorbed on graphite is studied in detail by using heat-capacity and neutron-diffraction measurements. The following features are observed: At low coverages the system forms a commensurate (C) (√3 × √3)R30°
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8c7f27746335d60dee9c52bd84fa370
https://doi.org/10.1016/0039-6028(92)91291-i
https://doi.org/10.1016/0039-6028(92)91291-i
Autor:
H. Wiechert
Publikováno v:
Physica B: Condensed Matter. 169:144-152
Recent experimental results of H2, HD and D2 films physisorbed on graphite are briefly reviewed. In particular, the monolayer phase diagrams, the order-disorder transition of the commensurate (C) phase and the commensurate-incommensurate (C-IC) trans
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65da1bc2658b821ac5c485009c3b6de0
https://doi.org/10.1016/0921-4526(91)90221-y
https://doi.org/10.1016/0921-4526(91)90221-y
Publikováno v:
Ferroelectrics. 108:77-82
Monolayers of polar molecules CF3H, CF3Cl and CF2Cl2 have been physisorbed on the graphite (001) surface and studied by X-ray diffraction and dielectric measurements. The temperature-coverage phase diagrams of the quasitwodimensional crystalline phas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8dbc47cb47e3a4d3759923e6bc3e11f
https://doi.org/10.1080/00150199008018736
https://doi.org/10.1080/00150199008018736