Local iron symmetry in quasicrystals

R. D. Werkman, I. Vincze, P. J. Schurer, F. van der Woude

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Iron sites in quasicrystalline Al(TFe)-alloys have been investigated with Mössbauer spectroscopy. The quadrupole splitting of these materials is about 0.4 mm/s, showing that the iron atom is not in an icosahedral {Mathematical expression} site. A measurement in an external magnetic field of Hext≈5 T yields the asymmetry parameter η=(Vxx-Vyy)/Vzz. The value of η enables one to decide between the applicability of some mathematical structure models of quasicrystals. The results are: η=0.8 for decagonal Al7(Mn0.7Fe0.3)2 η=0.9 for icosahedral Al6Cr0.7Fe0.3 using an one site approximation. This means that the iron atoms are in sites with a symmetry lower than axially symmetry, which suits very well for a Penrose lattice.

Original languageEnglish
Pages (from-to)1093-1097
Number of pages5
JournalHyperfine Interactions
Volume55
Issue number1-4
DOIs
Publication statusPublished - Jul 1990

Fingerprint

Quasicrystals
Crystal symmetry
Iron
iron
symmetry
Atoms
Model structures
atoms
quadrupoles
asymmetry
Spectroscopy
Magnetic fields
approximation
magnetic fields
spectroscopy

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Electronic, Optical and Magnetic Materials

Cite this

Werkman, R. D., Vincze, I., Schurer, P. J., & van der Woude, F. (1990). Local iron symmetry in quasicrystals. Hyperfine Interactions, 55(1-4), 1093-1097. https://doi.org/10.1007/BF02397129

Local iron symmetry in quasicrystals. / Werkman, R. D.; Vincze, I.; Schurer, P. J.; van der Woude, F.

In: Hyperfine Interactions, Vol. 55, No. 1-4, 07.1990, p. 1093-1097.

Research output: Contribution to journalArticle

Werkman, RD, Vincze, I, Schurer, PJ & van der Woude, F 1990, 'Local iron symmetry in quasicrystals', Hyperfine Interactions, vol. 55, no. 1-4, pp. 1093-1097. https://doi.org/10.1007/BF02397129
Werkman RD, Vincze I, Schurer PJ, van der Woude F. Local iron symmetry in quasicrystals. Hyperfine Interactions. 1990 Jul;55(1-4):1093-1097. https://doi.org/10.1007/BF02397129
Werkman, R. D. ; Vincze, I. ; Schurer, P. J. ; van der Woude, F. / Local iron symmetry in quasicrystals. In: Hyperfine Interactions. 1990 ; Vol. 55, No. 1-4. pp. 1093-1097.
@article{7f49f7f832a04919ad7b4d1fe4737688,
title = "Local iron symmetry in quasicrystals",
abstract = "Iron sites in quasicrystalline Al(TFe)-alloys have been investigated with M{\"o}ssbauer spectroscopy. The quadrupole splitting of these materials is about 0.4 mm/s, showing that the iron atom is not in an icosahedral {Mathematical expression} site. A measurement in an external magnetic field of Hext≈5 T yields the asymmetry parameter η=(Vxx-Vyy)/Vzz. The value of η enables one to decide between the applicability of some mathematical structure models of quasicrystals. The results are: η=0.8 for decagonal Al7(Mn0.7Fe0.3)2 η=0.9 for icosahedral Al6Cr0.7Fe0.3 using an one site approximation. This means that the iron atoms are in sites with a symmetry lower than axially symmetry, which suits very well for a Penrose lattice.",
author = "Werkman, {R. D.} and I. Vincze and Schurer, {P. J.} and {van der Woude}, F.",
year = "1990",
month = "7",
doi = "10.1007/BF02397129",
language = "English",
volume = "55",
pages = "1093--1097",
journal = "Hyperfine Interaction",
issn = "0304-3843",
publisher = "Springer Netherlands",
number = "1-4",

}

TY - JOUR

T1 - Local iron symmetry in quasicrystals

AU - Werkman, R. D.

AU - Vincze, I.

AU - Schurer, P. J.

AU - van der Woude, F.

PY - 1990/7

Y1 - 1990/7

N2 - Iron sites in quasicrystalline Al(TFe)-alloys have been investigated with Mössbauer spectroscopy. The quadrupole splitting of these materials is about 0.4 mm/s, showing that the iron atom is not in an icosahedral {Mathematical expression} site. A measurement in an external magnetic field of Hext≈5 T yields the asymmetry parameter η=(Vxx-Vyy)/Vzz. The value of η enables one to decide between the applicability of some mathematical structure models of quasicrystals. The results are: η=0.8 for decagonal Al7(Mn0.7Fe0.3)2 η=0.9 for icosahedral Al6Cr0.7Fe0.3 using an one site approximation. This means that the iron atoms are in sites with a symmetry lower than axially symmetry, which suits very well for a Penrose lattice.

AB - Iron sites in quasicrystalline Al(TFe)-alloys have been investigated with Mössbauer spectroscopy. The quadrupole splitting of these materials is about 0.4 mm/s, showing that the iron atom is not in an icosahedral {Mathematical expression} site. A measurement in an external magnetic field of Hext≈5 T yields the asymmetry parameter η=(Vxx-Vyy)/Vzz. The value of η enables one to decide between the applicability of some mathematical structure models of quasicrystals. The results are: η=0.8 for decagonal Al7(Mn0.7Fe0.3)2 η=0.9 for icosahedral Al6Cr0.7Fe0.3 using an one site approximation. This means that the iron atoms are in sites with a symmetry lower than axially symmetry, which suits very well for a Penrose lattice.

UR - http://www.scopus.com/inward/record.url?scp=0842269178&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0842269178&partnerID=8YFLogxK

U2 - 10.1007/BF02397129

DO - 10.1007/BF02397129

M3 - Article

AN - SCOPUS:0842269178

VL - 55

SP - 1093

EP - 1097

JO - Hyperfine Interaction

JF - Hyperfine Interaction

SN - 0304-3843

IS - 1-4

ER -