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Journal articles on the topic 'Oxide quasicrystal approximants'

Author: Grafiati
Published: 8 June 2024
Last updated: 31 July 2025

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1

Huran, Ahmad W., Hai-Chen Wang, and Miguel A. L. Marques. "Two-dimensional binary metal-oxide quasicrystal approximants." 2D Materials 8, no. 4 (2021): 045002. http://dx.doi.org/10.1088/2053-1583/ac0c03.

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2

Dorini, Thiago Trevizam, Florian Brix, Corentin Chatelier, Anton Kokalj, and Émilie Gaudry. "Two-dimensional oxide quasicrystal approximants with tunable electronic and magnetic properties." Nanoscale 13, no. 24 (2021): 10771–79. http://dx.doi.org/10.1039/d1nr02407h.

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3

Yamada, Tsunetomo. "A four-dimensional model for the Ba–Ti–O dodecagonal quasicrystal." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 78, no. 2 (2022): 247–52. http://dx.doi.org/10.1107/s205252062200227x.

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A four-dimensional (4D) model is presented of the first oxide dodecagonal quasicrystal found in a Ba–Ti–O ultra-thin film on a Pt(111) single-crystal substrate. The 4D model, with a 4D dodecagonal lattice constant a d = 8.39 Å, was derived by considering a tile decoration model of dodecagonal Niizeki–Gähler tiling composed of squares, triangles and 30° rhombuses. The model consists of four kinds of occupation domain, and 4D positional vectors defining the shape of each occupation domain are given. Moreover, the atomic arrangement of two Ba–Ti–O periodic approximants, the sigma-phase approximan
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4

Ruano Merchan, C., T. T. Dorini, F. Brix, et al. "Two-dimensional square and hexagonal oxide quasicrystal approximants in SrTiO3 films grown on Pt(111)/Al2O3(0001)." Physical Chemistry Chemical Physics 24, no. 12 (2022): 7253–63. http://dx.doi.org/10.1039/d1cp05296a.

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An all-thin-film approach allows the synthesis of novel two-dimensional quasicrystalline approximants and an atomic scale description is provided based on combined experimental and theoretical investigations.
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5

Förster, Stefan, Sebastian Schenk, Eva Maria Zollner, et al. "Quasicrystals and their Approximants in 2D Ternary Oxides." physica status solidi (b) 257, no. 7 (2019): 1900624. http://dx.doi.org/10.1002/pssb.201900624.

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6

Kang, Song-Seng, and Jean-Marie Dubois. "Influence of the annealing atmosphere on the formation of Al–Cu–Fe quasicrystals." Journal of Materials Research 10, no. 5 (1995): 1071–74. http://dx.doi.org/10.1557/jmr.1995.1071.

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Icosahedral samples of nominal composition Al63.5Cu24Fe12.5, which normally grow a rhombohedral approximant crystal, were submitted to heat treatments of various durations. The atmosphere in contact with the surface of the specimens was either dry air or secondary vacuum in order to test whether the formation of the icosahedral phase is sensitive or not to the nature of the atmosphere. Materials annealed in air showed a very thin surface layer of oxide which contained hydrogen. Beneath this oxide layer, small quantities of oxygen and hydrogen were also detected within the underlying lattice. T
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7

Demange, V., J. Ghanbaja, C. Beeli, F. Machizaud та J. M. Dubois. "Study of decagonal approximant and γ-brass-type compounds in Al–Cr–Fe thin films". Journal of Materials Research 19, № 8 (2004): 2285–97. http://dx.doi.org/10.1557/jmr.2004.0311.

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This paper reports the preparation conditions and structure characteristics of Al–Cr–Fe very thin films (10–30 nm) obtained by the flash evaporation technique. The films are either amorphous or crystallized, depending on the thickness of the sample and temperature of the substrate. Annealing of amorphous films leads to crystallization of intermetallic phases that are all linked with quasicrystals. In particular, we have identified by transmission electron microscopy the following structures: body-centered-cubic (bcc) γ-brass phase, monoclinic λ–Al13(Cr,Fe)4 phase, and orthorhombic O1-phase, al
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8

Schenk, Sebastian, Stefan Förster, Klaus Meinel, et al. "Observation of a dodecagonal oxide quasicrystal and its complex approximant in the SrTiO3-Pt(1 1 1) system." Journal of Physics: Condensed Matter 29, no. 13 (2017): 134002. http://dx.doi.org/10.1088/1361-648x/aa5bdb.

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9

Li, Xu, Keito Horiba, Ryoichi Sugiura, Tomoaki Yamada, and Junji Yuhara. "Growth of Ba–O ultrathin films on Pt(1 1 1) followed by Ti incorporation to prepare oxide crystalline approximants and quasicrystals." Applied Surface Science 561 (September 2021): 150099. http://dx.doi.org/10.1016/j.apsusc.2021.150099.

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10

Mancinelli, Chris, Jeff S. Ko, Cynthia J. Jenks, et al. "Comparative Study of the Tribological and Oxidative Properties of AlPdMn Quasicrystals and Their Cubic Approximants." MRS Proceedings 643 (2000). http://dx.doi.org/10.1557/proc-643-k8.2.

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AbstractAn experimental comparison has been made between the properties of the surfaces of an Al70Pd21Mn9 quasicrystal and its Al48Pd42Mn10 approximant. The Al70Pd21Mn9 sample was a single grain icosahedral quasicrystal cut to expose its five-fold symmetric (000001) surface. The approximant was polycrystalline β-phase Al48Pd42Mn10, which has a CsCl-type cubic structure. Surfaces of both were prepared under ultra-high vacuum (UHV) conditions and then used for comparative measurements of their frictional properties and oxidation rates. Both materials are oxidized by reaction with O2 to form a th
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11

Schenk, Sebastian, Oliver Krahn, Eric Cockayne, et al. "2D honeycomb transformation into dodecagonal quasicrystals driven by electrostatic forces." Nature Communications 13, no. 1 (2022). http://dx.doi.org/10.1038/s41467-022-35308-z.

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AbstractDodecagonal oxide quasicrystals are well established as examples of long-range aperiodic order in two dimensions. However, despite investigations by scanning tunneling microscopy (STM), low-energy electron diffraction (LEED), low-energy electron microscopy (LEEM), photoemission spectroscopy as well as density functional theory (DFT), their structure is still controversial. Furthermore, the principles that guide the formation of quasicrystals (QCs) in oxides are elusive since the principles that are known to drive metallic QCs are expected to fail for oxides. Here we demonstrate the sol
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12

Pinhero, Patrick J., Daniel J. Sordelet, James W. Anderegg, Pierre Brunet, Jean-Marie Dubois, and Patricia A. Thiel. "Room Temperature Oxidation Of AI-Cu-Fe and Al-Cu-Fe-Cr Quasicrystals." MRS Proceedings 553 (1998). http://dx.doi.org/10.1557/proc-553-263.

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AbstractWe have investigated formation of oxides on quasicrystalline and crystalline alloy surfaces of similar composition, in different oxidizing environments. This includes a comparison between a quaternary orthorhombic approximate of Al-Cu-Fe-Cr quasicrystal and the ternary Al-Cu-Fe quasicrystalline and crystalline phases. We noted that each sample showed the following common trends: preferential oxidation of the Al, enrichment in the concentration of Al present at the surface upon oxidation, water concentration is directly related to oxide thickness, and the oxide thickness displays a stro
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13

Nakakura, Joichiro, Primož Ziherl, Junichi Matsuzawa, and Tomonari Dotera. "Metallic-mean quasicrystals as aperiodic approximants of periodic crystals." Nature Communications 10, no. 1 (2019). http://dx.doi.org/10.1038/s41467-019-12147-z.

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Abstract Ever since the discovery of quasicrystals, periodic approximants of these aperiodic structures constitute a very useful experimental and theoretical device. Characterized by packing motifs typical for quasicrystals arranged in large unit cells, these approximants bridge the gap between periodic and aperiodic positional order. Here we propose a class of sequences of 2-D quasicrystals that consist of increasingly larger periodic domains and are marked by an ever more pronounced periodicity, thereby representing aperiodic approximants of a periodic crystal. Consisting of small and large
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14

Förster, S., M. Trautmann, S. Roy, et al. "Observation and Structure Determination of an Oxide Quasicrystal Approximant." Physical Review Letters 117, no. 9 (2016). http://dx.doi.org/10.1103/physrevlett.117.095501.

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15

Roy, Sumalay, Katayoon Mohseni, Stefan Förster, et al. "The Kepler tiling as the oldest complex surface structure in history: X-ray structure analysis of a two-dimensional oxide quasicrystal approximant." Zeitschrift für Kristallographie - Crystalline Materials 231, no. 12 (2016). http://dx.doi.org/10.1515/zkri-2016-2004.

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Abstract:We have carried out a surface X-ray diffraction (SXRD) analysis of the approximant structure related to the recently discovered two-dimensional dodecagonal oxidic quasicrystal. The structure is characterized by the 3
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16

Maniraj, M., L. V. Tran, O. Krahn, S. Schenk, W. Widdra, and S. Förster. "Hexagonal approximant of the dodecagonal oxide quasicrystal on Pt(111)." Physical Review Materials 5, no. 8 (2021). http://dx.doi.org/10.1103/physrevmaterials.5.084006.

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17

Croat, T. K., K. F. Kelton, D. Holland-Moritz, T. J. Rathz, and M. B. Robinson. "Containerless Solidification Studies Of The 1/1 Phase IN TI-(MN, CRFE)-SI-O Alloys." MRS Proceedings 553 (1998). http://dx.doi.org/10.1557/proc-553-43.

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AbstractThe nucleation behavior of the 1/1 quasicrystal approximant phase was investigated in Ti-TMSi- O (TM=Mn, Cr, Fe) alloys made near the stoichiometric composition. Containerless solidification studies were performed using electromagnetic (rf) levitation and drop-tube techniques. The solidification microstructures indicate that α-Ti nucleated first in Ti-Cr-Si-O and β-Ti in Ti-Mn-Si-O alloys; the 1/1 phase nucleated and grew on these titanium oxide dendrites. In Ti-Fe-Si-O alloys, the 1/1 phase nucleated and grew directly from the liquid, allowing information on the nucleation rates to be
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18

Dubois, Jean Marie, Vincent Fournée, and Esther Belin-Ferré. "Wetting and friction on quasicrystals and related compounds." MRS Proceedings 805 (2003). http://dx.doi.org/10.1557/proc-805-ll8.6.

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ABSTRACTReduced wetting and friction are two essential surface properties that to a large extent currently embody the technological potential of quasicrystalline coatings. By quasicrystalline compounds, one considers here the whole family of complex Al-(Cu or Pd)-(Fe, Cr or Mn) intermetallics, which comprises true quasicrystals, their approximants and some crystalline materials of related composition.Although covered by a layer of native Al2O3 oxide, wetting by water on these materials exhibits a clear correlation between the reversible adhesion energy of water and the bulk density of states a
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19

Ruano-Merchan, Catalina, Vipin Kumar Singh, Olivier Copie, et al. "Stoichiometry-Driven Formation of Two-Dimensional Ternary Oxides: From Quasicrystal Approximants to Honeycomb Lattice Structures." Journal of Physical Chemistry C, May 17, 2024. http://dx.doi.org/10.1021/acs.jpcc.4c01783.

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