Atomic clusters in icosahedral<b><i>F</i></b>-type quasicrystals

Gratias, D.; Puyraimond, Frédéric; Quiquandon, Marianne; Katz, A. S.

doi:10.1103/physrevb.63.024202

Cited by 96 publications

(82 citation statements)

References 41 publications

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“…25,26 These two types of clusters are the building blocks of this family of quasicrystals and any surface necessarily cuts some of these clusters. 26,27 Several studies have identified these cut clusters as strong adsorption sites. 7,[28][29][30][31][32] Therefore the 8.0 Å Pb pentagons might result from the preferential adsorption of adatoms at these specific sites.…”

Section: A Pb Adsorption On the Fivefold Surface Of The I-al-cu-fe Qmentioning

confidence: 99%

Aperiodic and modulated Pb thin films on fivefold icosahedral Al-Cu-Fe and Al(111): Tailoring the structure of Pb

et al. 2009

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We report on the growth of Pb thin films deposited either on the Al-rich fivefold surface of the icosahedral AlCu-Fe quasicrystal or on the (111) surface of fcc Al. On the quasicrystalline substrate, the diffusion length of Pb adatoms is short due to heterogeneous nucleation that enforces a quasiperiodic structure in the monolayer. On the Al(111) substrate, the mobility of Pb adatoms is high and the interaction with the substrate is flatter, leading to the formation of a (√31×√31)R8.95° higher-order commensurate structure. This moiré structure propagates up to the highest coverages investigated. Disciplines Condensed Matter Physics | Metallurgy CommentsThis article is from Physical Review B 79 (2009) We report on the growth of Pb thin films deposited either on the Al-rich fivefold surface of the icosahedral Al-Cu-Fe quasicrystal or on the ͑111͒ surface of fcc Al. On the quasicrystalline substrate, the diffusion length of Pb adatoms is short due to heterogeneous nucleation that enforces a quasiperiodic structure in the monolayer. On the Al͑111͒ substrate, the mobility of Pb adatoms is high and the interaction with the substrate is flatter, leading to the formation of a ͑ͱ31ϫ ͱ 31͒R8.95°higher-order commensurate structure. This moiré structure propagates up to the highest coverages investigated.

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Section: A Pb Adsorption On the Fivefold Surface Of The I-al-cu-fe Qmentioning

confidence: 99%

Aperiodic and modulated Pb thin films on fivefold icosahedral Al-Cu-Fe and Al(111): Tailoring the structure of Pb

et al. 2009

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“…The application of such a general scheme is shown on figure 5-a, which displays the decomposition of one of the atomic surface used by Gratias et al for modelling the i-AlPdMn and i-AlCuFe phase [18,19]. The atomic surfaces have been designed in such a way that the number of local environments and in particular the cluster chemical decorations are minimised.…”

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confidence: 99%

Structure determination of quasicrystals

Boissieu

Takakura

Gómez

et al. 2007

Philosophical Magazine

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“…Their diffraction pattern shows sharp Bragg peaks that distribute in reciprocal space according to the icosahedral symmetry. Both systems are almost isostructural and are described by the same model [13,14]. Their unique atomic structure correlates with unexpected electronic properties, different from both amorphous and crystalline alloys [15].…”

mentioning

confidence: 99%

“…Both Al-Cu-Fe and Al-Pd-Mn substrates are Al-rich quasicrystalline phases with icosahedral symmetry [13]. They are well-ordered structures like regular crystals, but they lack periodicity.…”

mentioning

confidence: 99%