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Quasicrystal approximant Ho13Zn 58 + δ (δ ≈ 0.6) : An incommensurate modulated tunnel structure

Piao, S. Y. and Lidin, S. LU (2007) In Philosophical Magazine 87(18-21). p.2693-2699
Abstract

In a systematic study of the binary quasicrystal approximants RE13Zn58 (RE = rare earth elements) system, single crystals of Ho13Zn58 + have been prepared. It is unique among family members of the RE13Zn58 system in that it shows a modulated superstructure ordering. Satellite reflections observed in single crystal X-ray diffraction pattern indicate the presence of a one-dimensional lattice distortion. The modulated structure has been solved and refined from X-ray data using the superspace group approach. The Ho13Zn58 + structure can be described in the (3 + 1)-dimensional superspace group Pc21n(00)s0s with lattice parameters a = 24.6481(7) , b = 14.2484(4) , c = 14.0153(3) and a modulation vector q = (0, 0.741, 0). The crystal structure... (More)

In a systematic study of the binary quasicrystal approximants RE13Zn58 (RE = rare earth elements) system, single crystals of Ho13Zn58 + have been prepared. It is unique among family members of the RE13Zn58 system in that it shows a modulated superstructure ordering. Satellite reflections observed in single crystal X-ray diffraction pattern indicate the presence of a one-dimensional lattice distortion. The modulated structure has been solved and refined from X-ray data using the superspace group approach. The Ho13Zn58 + structure can be described in the (3 + 1)-dimensional superspace group Pc21n(00)s0s with lattice parameters a = 24.6481(7) , b = 14.2484(4) , c = 14.0153(3) and a modulation vector q = (0, 0.741, 0). The crystal structure is closely related to those of other RE13Zn58 compounds, comprising hexagon-shaped tunnels made up of rare earth-centred Zn polyhedra. All atoms in the structure are affected by a displacive modulation, but one set of Zn atoms are very strongly affected and display an almost composite behaviour with regard to the rest of the structure.

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type
Contribution to journal
publication status
published
in
Philosophical Magazine
volume
87
issue
18-21
pages
7 pages
publisher
Taylor & Francis
external identifiers
  • scopus:34547258897
ISSN
1478-6435
DOI
10.1080/14786430601047715
language
English
LU publication?
no
id
8ce3c177-c2d8-4b52-9692-a0fab7722d3b
date added to LUP
2019-04-08 15:15:01
date last changed
2022-01-31 18:46:46
@article{8ce3c177-c2d8-4b52-9692-a0fab7722d3b,
  abstract     = {{<p>In a systematic study of the binary quasicrystal approximants RE13Zn58 (RE = rare earth elements) system, single crystals of Ho13Zn58 + have been prepared. It is unique among family members of the RE13Zn58 system in that it shows a modulated superstructure ordering. Satellite reflections observed in single crystal X-ray diffraction pattern indicate the presence of a one-dimensional lattice distortion. The modulated structure has been solved and refined from X-ray data using the superspace group approach. The Ho13Zn58 + structure can be described in the (3 + 1)-dimensional superspace group Pc21n(00)s0s with lattice parameters a = 24.6481(7) , b = 14.2484(4) , c = 14.0153(3) and a modulation vector q = (0, 0.741, 0). The crystal structure is closely related to those of other RE13Zn58 compounds, comprising hexagon-shaped tunnels made up of rare earth-centred Zn polyhedra. All atoms in the structure are affected by a displacive modulation, but one set of Zn atoms are very strongly affected and display an almost composite behaviour with regard to the rest of the structure.</p>}},
  author       = {{Piao, S. Y. and Lidin, S.}},
  issn         = {{1478-6435}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{18-21}},
  pages        = {{2693--2699}},
  publisher    = {{Taylor & Francis}},
  series       = {{Philosophical Magazine}},
  title        = {{Quasicrystal approximant Ho<sub>13</sub>Zn <sub>58 + δ (δ ≈ 0.6)</sub> : An incommensurate modulated tunnel structure}},
  url          = {{http://dx.doi.org/10.1080/14786430601047715}},
  doi          = {{10.1080/14786430601047715}},
  volume       = {{87}},
  year         = {{2007}},
}