First steps in the growth of Cu thin films on the five-fold surface of the icosahedral Al–Cu–Fe quasicrystal

Sharma, H. R.; Shimoda, Masahiko; Fournée, V.; Ross, A. R.; Lograsso, Thomas A.; Tsai, A. P.

doi:10.1016/j.apsusc.2004.09.042

Cited by 7 publications

(5 citation statements)

References 10 publications

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“…At this coverage, the LEED pattern still shows fivefold symmetry but the number of spots is reduced. This is consistent with a previous report on this system by Sharma et al [31]. At 1 ML, additional LEED spots appear, suggesting that another phase is developing (see figure 3(c)).…”

Section: Room Temperature Growthsupporting

confidence: 93%

Surface alloys as interfacial layers between quasicrystalline and periodic materials

Duguet¹,

Ledieu²,

Dubois³

et al. 2008

J. Phys.: Condens. Matter

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Low adhesion with normal metals is an intrinsic property of many quasicrystalline surfaces. Although this property could be useful to develop low friction or non-stick coatings, it is also responsible for the poor adhesion of quasicrystalline coatings on metal substrates. Here we investigate the possibility of using complex metallic surface alloys as interface layers to enhance the adhesion between quasicrystals and simple metal substrates. We first review some examples where such complex phases are formed as an overlayer. Then we study the formation of such surface alloys in a controlled way by annealing a thin film deposited on a quasicrystalline substrate. We demonstrate that a coherent buffer layer consisting of the γ-Al4Cu9 approximant can be grown between pure Al and the i-Al–Cu–Fe quasicrystal. The interfacial relationships between the different layers are defined by .

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Section: Room Temperature Growthsupporting

confidence: 93%

Surface alloys as interfacial layers between quasicrystalline and periodic materials

Duguet¹,

Ledieu²,

Dubois³

et al. 2008

J. Phys.: Condens. Matter

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“…Additionally, the adsorption of Cu adatoms on the twofold i-Al-Pd-Mn surface yields to a quasiperiodic structure as confirmed both by STM and LEED [27]. The adsorption of Cu atoms has also been performed on the fivefold surface of the icosahedral Al-Cu-Fe alloy [28,29]. For coverages up to 8 ML of Cu, five rotational domains of (110)-orientated β-Al(Cu, Fe) phase are observed by LEED and STM.…”

Section: Introductionmentioning

confidence: 70%

Pseudomorphy, surface alloys and the role of elementary clusters on the domain orientations in the Cu/Al₁₃Co₄(100) system

Addou

Shukla

Weerd

et al. 2011

J. Phys.: Condens. Matter

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We have used the pseudo-tenfold surface of the orthorhombic Al(13)Co(4) crystal as a template for the adsorption of Cu thin films of various thicknesses deposited at different temperatures. This study has been carried out by means of low energy electron diffraction (LEED), scanning tunnelling microscopy (STM), x-ray photoelectron spectroscopy (XPS) and x-ray photoelectron diffraction (XPD). From 300 to 573 K, Cu adatoms grow pseudomorphically up to one monolayer. At 300 K, the β-Al(Cu, Co) phase appears for coverages greater than one monolayer. For higher temperature deposition, the β-Al(Cu, Co) phase further transforms into the γ-Al(4)Cu(9) phase. Both β and γ phases grow as two (110) domains rotated by 72° ± 1° from each other. Instead of following the substrate symmetry, it is the orientations of the bipentagonal motifs present on the clean Al(13)Co(4)(100) surface that dictate the growth orientation of these domains. The initial bulk composition and structural complexity of the substrate have a minor role in the formation of the γ-Al(4)Cu(9) phase as long as the amount of Al and the Cu film thickness reach a critical stoichiometry.

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“…Most of the attempts to fabricate quasicrystalline singleelement films so far resulted in either periodic films exhibiting orientational relationship with the substrate [4][5][6][7][8][9][10] or films with no long-range order. 11 Only a limited number of systems are found to yield films with quasicrystalline longrange order. Franke et al characterized the reciprocal space of Bi and Sb films grown at 300°C on decagonal Alu Niu Co and icosahedral ͑i͒ Alu Pdu Mn surfaces by low-energy electron diffraction and He atom scattering and showed that both Bi and Sb yield highly ordered quasicrystalline monolayer.…”

Section: Introductionmentioning

confidence: 99%

Real-space observation of quasicrystalline Sn monolayer formed on the fivefold surface of icosahedralAlCuFequasicrystal

et al. 2005

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We investigate a thin Sn film grown at elevated temperatures on the fivefold surface of an icosahedral Alu Cuu Fe quasicrystal by scanning tunneling microscopy ͑STM͒. At about one monolayer coverage, the deposited Sn is found to form a smooth film of height consistent with one-half of the lattice constant of the bulk Sn. Analysis based on the Fourier transform and autocorrelation function derived from high-resolution STM images reveals that Sn grows pseudomorphically and hence exhibits a quasicrystalline structure.

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First steps in the growth of Cu thin films on the five-fold surface of the icosahedral Al–Cu–Fe quasicrystal

Cited by 7 publications

References 10 publications

Surface alloys as interfacial layers between quasicrystalline and periodic materials

Surface alloys as interfacial layers between quasicrystalline and periodic materials

Pseudomorphy, surface alloys and the role of elementary clusters on the domain orientations in the Cu/Al₁₃Co₄(100) system

Real-space observation of quasicrystalline Sn monolayer formed on the fivefold surface of icosahedralAlCuFequasicrystal

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First steps in the growth of Cu thin films on the five-fold surface of the icosahedral Al–Cu–Fe quasicrystal

Cited by 7 publications

References 10 publications

Surface alloys as interfacial layers between quasicrystalline and periodic materials

Surface alloys as interfacial layers between quasicrystalline and periodic materials

Pseudomorphy, surface alloys and the role of elementary clusters on the domain orientations in the Cu/Al13Co4(100) system

Real-space observation of quasicrystalline Sn monolayer formed on the fivefold surface of icosahedralAlCuFequasicrystal

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Pseudomorphy, surface alloys and the role of elementary clusters on the domain orientations in the Cu/Al₁₃Co₄(100) system