Zobrazeno 1 - 10
of 17
pro vyhledávání: '"M. D. Upward"'
Autor:
M. D. Upward, Kosmas Prassides, F. H. Jones, M. J. Butcher, Fred Wudl, Vin Dhanak, B. N. Cotier, C. Comicioli, T. K. Johal, K. Kordatos, C. Ottaviani, Philip Moriarty, Peter H. Beton, Nikos Tagmatarchis, C. Crotti
Publikováno v:
Physical Review Letters. 83:3478-3481
C59N is found to sublime in monomer free radical form rather than the more stable dimers which are normally observed. Using a scanning tunneling microscope operating in ultrahigh vacuum we have found that the monomer form may be immobilized and there
Publikováno v:
Surface Science. 441:21-25
We have investigated the adsorption of cobalt phthalocyanine on the Ag/Si(111)-( 3 × 3 )R30° surface using scanning tunnelling microscopy. The molecules are found to diffuse freely on the surface and form a highly ordered close-packed array as the
Publikováno v:
Semiconductor Science and Technology. 13:A47-A50
We have investigated the response of molecules adsorbed on to manipulation induced by a scanning tunnelling microscope. Our results show that the interaction is greater than the interaction. Attempts to move a molecular pair result in the transfer of
Autor:
M. D. Upward, D. R. M. Walton, Harold W. Kroto, Peter H. Beton, Robert A. Taylor, Paul R. Birkett, Philip Moriarty
Publikováno v:
Surface Science. 405:L526-L531
We have investigated the influence of phenyl addends on the packing and adsorption of C 60 on a solid substrate. On the Ag/Si(111)- ( 3 × 3 )R30° surface, the interactions of the unmodified part of the fullerene cages are not strongly affected by t
Autor:
Peter H. Beton, Yuan-Ron Ma, D. A. Woolf, D. Teehan, Andrew Dunn, Philip Moriarty, M. D. Upward
Publikováno v:
Surface Science. 405:21-26
The interaction of C 60 with the (2×2) and (1×1) LT reconstructions of the GaAs(111)B surface has been studied using synchrotron radiation core-level and valence band photoemission. For the (2×2) phase, C 60 adsorption produces no change in either
Autor:
Lucio Claudio Andreani, Mohamed Henini, Philip Moriarty, Emanuele Grilli, S. C. Fortina, Laurence Eaves, M. D. Upward, G. Panzarini, Mario Guzzi, Stefano Sanguinetti, Peter H. Beton
Publikováno v:
Scopus-Elsevier
We have observed a direct correlation between nonspherical shape and polarization anisotropy of optical transitions in quantum dots. The dots, grown by self-assembling during epitaxial deposition of InAs on $\mathrm{GaAs}(311)A,$ exhibit a nonconvent
Publikováno v:
Surface Science. 397:421-425
The interaction of C 60 with the Si(110)-(16 × 2) surface has been studied using a scanning tunnelling microscope (STM). For a submonolayer coverage isolated C 60 molecules are observed with no evidence for a preferential adsorption site. As the cov
Publikováno v:
Physical Review B. 57:362-369
The interaction of ${\mathrm{C}}_{60}$ with the Si(111)-(7\ifmmode\times\else\texttimes\fi{}7) and Si(100)-(2\ifmmode\times\else\texttimes\fi{}1) surfaces has been investigated using synchrotron radiation core-level and valence-band photoelectron spe
Publikováno v:
Fullerene Science and Technology. 5:769-780
We have demonstrated that the tip of a scanning tunnelling microscope (STM) may be used to position individual C60 molecules on a Si(111) surface. This work is reviewed together with more recent results on STM modification of C60multilayers. The chem
Publikováno v:
Semiconductor Science and Technology. 11:1563-1568
We have used an ultra-high-vacuum (UHV) scanning tunnelling microscope (STM) to image molecules adsorbed on a Si(111) surface. At low coverage ( monolayers) molecules are adsorbed at random sites. For coverages close to a monolayer they are partially