Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Sofia Deloudi"'
Autor:
Walter Steurer, Sofia Deloudi
Publikováno v:
Comptes Rendus Physique. 15:40-47
Where are we now, 25 years after the discovery of the first stable decagonal quasicrystal (DQC)? In this critical review, the status of research into these axial quasicrystals, which are quasiperiodic in two dimensions and periodic along the third, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77e74e8526dcaa7864def83ca076d204
https://doi.org/10.1016/j.crhy.2013.09.007
https://doi.org/10.1016/j.crhy.2013.09.007
Autor:
Walter Steurer, Sofia Deloudi
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 68:266-277
Crystallography and periodic average structures (PASs) of two-dimensional (2D) quasiperiodic tilings with N-fold symmetry (N-QPTs with N = 7, 8, 9, 10, 11, 12, 13, 15) were studied using the higher-dimensional approach. By identifying the best (most
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8bcf6c2cb4a987855071057e675cd8e
https://doi.org/10.1107/s0108767312001705
https://doi.org/10.1107/s0108767312001705
Autor:
Sofia Deloudi, Walter Steurer
Publikováno v:
Structural Chemistry, 23 (4)
Structural Chemistry, 23 (4)
ISSN:1040-0400
ISSN:1572-9001
ISSN:1040-0400
ISSN:1572-9001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28c2554321117c7fd44bb5cd5677c499
https://doi.org/10.1007/s11224-011-9864-2
https://doi.org/10.1007/s11224-011-9864-2
Publikováno v:
Acta Crystallographica Section B Structural Science. 67:1-17
The geometrical building principles of Al-based decagonal quasicrystals and their approximants are discussed from a cluster-based approach. Our investigations cover 11 modifications with two- or four-layer periodicity in the systems Al–Co–Ni, Al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2730ef284ddb5bb1ae2cf4d2d1a252c
https://doi.org/10.1107/s0108768110040942
https://doi.org/10.1107/s0108768110040942
Autor:
Jan Perlich, Stephan Förster, Sofia Deloudi, Kathrin Zielske, Alexander Exner, Peter Lindner, Steffen Fischer, Walter Steurer
Publikováno v:
Proceedings of the National Academy of Sciences. 108:1810-1814
Micelles are the simplest example of self-assembly found in nature. As many other colloids, they can self-assemble in aqueous solution to form ordered periodic structures. These structures so far all exhibited classical crystallographic symmetries. H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70e5bcb849de719f0729f9125a3b9f07
https://doi.org/10.1073/pnas.1008695108
https://doi.org/10.1073/pnas.1008695108
Publikováno v:
Philosophical Magazine. 91:2528-2535
In order to reveal its influence on quasicrystal structure analysis, multiple diffraction (MD) effects in an icosahedral Al-Cu-Fe quasicrystal have been investigated in-house on an Oxford Diffraction four-circle diffractometer equipped with an Onyx
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::310636bccea4f4b90a2ed3feba0693df
https://doi.org/10.1080/14786435.2010.512577
https://doi.org/10.1080/14786435.2010.512577
Publikováno v:
Journal of Applied Crystallography. 43:89-100
Comprehensive tests on the density-modification methods charge flipping [Oszlányi & Sütő (2004).Acta Cryst.A60, 134–141] and low-density elimination [Shiono & Woolfson (1992).Acta Cryst.A48, 451–456] for solving crystal structures are performe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e044e95fa22d3be93ffaf0a710aad69
https://doi.org/10.1107/s0021889809050535
https://doi.org/10.1107/s0021889809050535
Publikováno v:
Journal of Applied Crystallography. 41:669-674
How many of the theoretically densely distributed Bragg reflections of a quasicrystal can be observed employing an area detector and synchrotron radiation? How does the reflection density of a real quasicrystal change as a function of exposure time,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ca821e3d8aba67ce35dff63642d4683
https://doi.org/10.1107/s0021889808014386
https://doi.org/10.1107/s0021889808014386
Autor:
Walter, Steurer, Sofia, Deloudi
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 64:1-11
It took Dan Shechtman more than two years to get his discovery of an Al–Mn phase with icosahedral diffraction symmetryandsharp Bragg reflections published. A paradigm shift had to take place before this novel ordering state of matter – seemingly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a52ab52af904c16d0fb589e183e68f32
https://doi.org/10.1107/s0108767307038627
https://doi.org/10.1107/s0108767307038627
Autor:
Walter Steurer, Sofia Deloudi
Publikováno v:
Philosophical Magazine. 87:2727-2732
Systematic cluster-based structural modelling of decagonal Al–Co–Ni is performed, based on a fundamental Al–Co cluster with 20 A diameter, symmetry and 8 A periodicity. This cluster is the building unit of τ2-Al13Co4, from which, via minor cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c09d0fd24e7af0803280e0f29108016f
https://doi.org/10.1080/14786430701361412
https://doi.org/10.1080/14786430701361412