Abstract
The results of the investigation of the features of the local structure of quasicrystalline materials by extended X-ray absorption fine structure (EXAFS) spectroscopy with the use of synchrotron radiation are analyzed. The advantages of this method from the point of view of deriving information about the local shifts of the atoms forming an icosahedral structure are demonstrated. The rearrangement of the local environment of copper and iron in Al-Fe-Cu ternary alloys at a transition from the crystalline to the quasicrystalline phase has been investigated. It is established that the nearest copper coordination retains the symmetry characteristic of the crystal; however, rotation and small displacements of copper matrix atoms lead to significant rearrangement of aluminum atoms around iron atoms. As a result, icosahedral clusters with pentagonal symmetry are formed around iron atoms and violation of the translational symmetry is accompanied by the transition of Al-Fe-Cu to the quasicrystalline state.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D. Shechtman, I. Blech, D. Gratias, and J. W. Cahn, Phys. Rev. Lett. 53, 1951 (1984).
V. F. Gantmakher, Usp. Fiz. Nauk 172, 1283 (2002).
J.-M. Dubois, Mater. Sci. Eng. 294–296, 4 (2000).
K. V. Klementev, J. Phys. D: Appl. Phys. 34, 209 (2001).
M. Newville, J. Synchrotron Radiat. 8, 322 (2001).
A. L. Ankudinov, B. Ravel, J. J. Rehr, and S. D. Conradson, Phys. Rev. B: Condens. Matter Mater. Phys. 58, 7565 (1998).
A. Sadoc, J. P. Itié, A. Polian, et al., Physica B 208–209, 495 (1995).
J. P. Gomilšek, I. Arčon, A. Kodre, and J. Dolinšek, Solid State Commun. 123, 527 (2002).
G. T. de Laissardière, Z. Dankahási, E. Bellin, et al., Phys. Rev. B: Condens. Matter Mater. Phys. 51, 14035 (1995).
A. P. Menushenkov, Ya. V. Rakshun, D. S. Shaĭtura, et al., Poverkhnost, No. 11, 66 (2003).
A. P. Menushenkov, Ya. V. Rakshun, M. N. Mikheeva, et al., Pis’ma Zh. Éksp. Teor. Fiz. 81, 595 (2005) [JETP Lett. 81, 479 (2005)].
V. Simonet, F. Hippert, R. A. Brand, et al., Phys. Rev. B: Condens. Matter Mater. Phys. 72, 024 214 (2005).
K. Sugiyama, T. Kato, T. Ogawa, et al., J. Alloys Compd. 299, 169 (2000).
P. P. Parshin, M. G. Zemlyanov, A. V. Mashkov, et al., Fiz. Tverd. Tela (St. Petersburg) 46, 510 (2004) [Phys. Solid State 46, 526 (2004)].
S. Lyonnard, G. Coddens, B. Hennion, and Y. Calvayrac, Physica B 234–236, 28 (1997).
E. Belin, Z. Dankhazi, A. Sadoc, et al., J. Phys.: Condens. Matter 2, 4459 (1992).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © A.P. Menushenkov, Ya.V. Rakshun, 2007, published in Kristallografiya, 2007, Vol. 52, No. 6, pp. 1042–1050.