Zobrazeno 1 - 10
of 28
pro vyhledávání: '"D. W. Delaney"'
Publikováno v:
Surface Science. 512:77-83
The adsorption of sulphur on the fivefold flat-terraced surface of the icosahedral Al–Pd–Mn quasicrystal ( i -Al–Pd–Mn) has been studied using extended X-ray absorption fine structure (EXAFS), Auger electron spectroscopy and low energy electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b9b5f2197563abbc80791ea39cf82f4
https://doi.org/10.1016/s0039-6028(02)01575-3
https://doi.org/10.1016/s0039-6028(02)01575-3
Autor:
D. W. Delaney, T.A. Lograsso, M. A. Van Hove, Matthew J. Kramer, Zhi-Xun Shen, F. Shi, Patricia A. Thiel, Alan I. Goldman, Cynthia J. Jenks, T. Cai, M. Gierer
Publikováno v:
Surface Science. 495:19-34
We investigate the atomic structure of the fivefold surface of an icosahedral Al-Cu-Fe alloy, using scanning tunneling microscopy (STM) imaging and a special dynamical low energy-electron diffraction (LEED) method. STM indicates that the step heights
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9876a8ef8ecf03bfb9416c2f52199b7
https://doi.org/10.1016/s0039-6028(01)01500-x
https://doi.org/10.1016/s0039-6028(01)01500-x
Autor:
T.A. Lograsso, Cynthia J. Jenks, T.E. Bloomer, Matthew F. Besser, Patricia A. Thiel, Matthew J. Kramer, Amy R. Ross, D. W. Delaney, Daniel J. Sordelet
Publikováno v:
Applied Surface Science. 180:57-64
We discuss and compare approaches to using Auger data for semi-quantitative determination of surface compositions of Al-based quasicrystals. We have examined two quasicrystalline phases: icosahedral Al–Cu–Fe and Al–Pd–Mn. We find that sensiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f60601217a97a3ec643b4717809c2cdd
https://doi.org/10.1016/s0169-4332(01)00326-9
https://doi.org/10.1016/s0169-4332(01)00326-9
Autor:
Christopher A. Muryn, G. Thornton, Renee D. Diehl, D. W. Delaney, T.A. Lograsso, Julian Ledieu, Ronan McGrath
Publikováno v:
Surface Science. 472:89-96
Room temperature adsorption of C 60 on the flat quasicrystalline surface of Al 70 Pd 21 Mn 9 has been investigated using scanning tunnelling microscopy. A dispersed overlayer is formed at low coverage, with avoidance of step-edges. There is no eviden
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c134548d8c5d6350524c2e67ccfcf23
https://doi.org/10.1016/s0039-6028(00)00924-9
https://doi.org/10.1016/s0039-6028(00)00924-9
Autor:
Vincenzo Formoso, Giovanni Cappello, Aude Dechelette, T.A. Lograsso, D. W. Delaney, Terrence Jach, Roberto Colella, Cynthia J. Jenks, Sebastien Decossas, F. Schmithusen, Fabio Comin, Joël Chevrier, Marc de Boissieu
Publikováno v:
Materials Science and Engineering: A. :863-866
An X-ray standing waves experiment was performed at the ID32 beam line of the ESRF on an Al–Pd–Mn quasicrystal with the X-ray beam at normal incidence. The X-ray photoemission core levels for each element were recorded to probe the surface. The d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0e02303f73095c6e264244d5390baa37
https://doi.org/10.1016/s0921-5093(00)01080-7
https://doi.org/10.1016/s0921-5093(00)01080-7
Autor:
Ian R. Fisher, W. Raberg, Vincent Fournée, M. Heinzig, Matthew J. Kramer, P. C. Canfield, Zhi-Xun Shen, Patricia A. Thiel, D. W. Delaney, T.A. Lograsso, M. A. Van Hove, Cynthia J. Jenks, T. Cai, Alan I. Goldman
Publikováno v:
Surface Science. 450:1-11
It is shown that low-energy electron diffraction (LEED) patterns of the three high-symmetry surfaces (fivefold, threefold and twofold) of icosahedral Al–Pd–Mn are all compatible with quasicrystallinity, under specific conditions of preparation. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6ebf73d8f0bbef27489c6d6a2cd3aeb
https://doi.org/10.1016/s0039-6028(99)01183-8
https://doi.org/10.1016/s0039-6028(99)01183-8
Publikováno v:
Physical Review B. 60:R16330-R16333
Differently prepared surfaces of quasicrystalline i-Al-Pd-Mn are analyzed using angle-resolved photoemission in the x-ray and ultraviolet range of photon energies. Depending on the preparation, we find both surfaces with crystalline structure and met
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97c7bd0576bba70a42840b70599f5e87
https://doi.org/10.1103/physrevb.60.r16330
https://doi.org/10.1103/physrevb.60.r16330
Autor:
D. W. Delaney, Thomas A. Lograsso, A.W. Munz, Renee D. Diehl, T.M. Parker, Julian Ledieu, Ronan McGrath
Publikováno v:
Surface Science. :666-671
We report an investigation of the five-fold surface of the Al70Pd21Mn9 quasicrystal using STM, LEED and AES. Surfaces sputtered and annealed to 875 K showed excellent five-fold symmetric LEED patterns, and STM revealed cluster-like protrusions. Surfa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c89664d317edfa5654d106e40443c925
https://doi.org/10.1016/s0039-6028(99)00144-2
https://doi.org/10.1016/s0039-6028(99)00144-2
Autor:
James W. Anderegg, D. W. Delaney, Patricia A. Thiel, Daniel J. Sordelet, Thomas A. Lograsso, Patrick J. Pinhero
Publikováno v:
Journal of Materials Research. 14:3185-3188
We have used x-ray photoelectron spectroscopy and Auger electron spectroscopy to examine the characteristics of oxides on two types of quasicrystalline Al–Cu–Fe samples. One type was formed by consolidation of powders, resulting in multiple grain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6d5204384bd0c16999a3ae5b7c87a03
https://doi.org/10.1557/jmr.1999.0427
https://doi.org/10.1557/jmr.1999.0427
Autor:
Alan I. Goldman, M. de Boissieu, Michel Boudard, D. W. Delaney, Roberto Colella, Yanbao Zhang, Terrence Jach, Stefan Kycia, T.A. Lograsso
Publikováno v:
Physical Review Letters. 82:2904-2907
We have observed dynamical diffraction in the $[[\left(0240\overline{2}4\right)$ and $[[\left(0460\overline{4}6\right)$ reflections of the icosahedral quasicrystal AlPdMn in the back-reflection geometry ( ${\ensuremath{\theta}}_{B}\phantom{\rule{0ex}
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd783c583a36d794946c495e3d876a70
https://doi.org/10.1103/physrevlett.82.2904
https://doi.org/10.1103/physrevlett.82.2904