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Growth, Structure, Optical and Ultrasonic Investigations of Icosahedral Zn-Mg-Y Quasicrystals

Published online by Cambridge University Press:  17 March 2011

R. Sterzel ,
G. Bruls ,
A. Kounis ,
G. Miehe ,
K. Saitoh ,
H. Fuess ,
V. Karpus ,
G.-J. Babonas ,
L. Reza  and
W. Assmus
R. Sterzel
Affiliation:
Physikalisches Institut, J.W.Goethe University Frankfurt, Robert-Mayer-Str. 2-4, D-60325 Frankfurt, Germany
G. Bruls
Affiliation:
Physikalisches Institut, J.W.Goethe University Frankfurt, Robert-Mayer-Str. 2-4, D-60325 Frankfurt, Germany
A. Kounis
Affiliation:
Materials Science Dept, TH-Darmstadt, Petersen-Str. 23, D-64287 Darmstadt, Germany
G. Miehe
Affiliation:
Materials Science Dept, TH-Darmstadt, Petersen-Str. 23, D-64287 Darmstadt, Germany
K. Saitoh
Affiliation:
Materials Science Dept, TH-Darmstadt, Petersen-Str. 23, D-64287 Darmstadt, Germany
H. Fuess
Affiliation:
Materials Science Dept, TH-Darmstadt, Petersen-Str. 23, D-64287 Darmstadt, Germany
V. Karpus
Affiliation:
Semiconductor Physics Institute, GoŠtauto 11, LT-2600 Vilnius, Lithuania
G.-J. Babonas
Affiliation:
Semiconductor Physics Institute, GoŠtauto 11, LT-2600 Vilnius, Lithuania
L. Reza
Affiliation:
Semiconductor Physics Institute, GoŠtauto 11, LT-2600 Vilnius, Lithuania
W. Assmus
Affiliation:
Physikalisches Institut, J.W.Goethe University Frankfurt, Robert-Mayer-Str. 2-4, D-60325 Frankfurt, Germany
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Abstract

It is shown how the history of the growth of an icosahedral Zn-Mg-Y single grain can be determined by measuring the yttrium distribution. The growth mechanism and the stabilization of the icosahedral Zn-Mg-Y, RE (RE = rare earth: Ho, Er, Dy, Gd, Tb) quasicrystals are discussed with respect to structural investigations on related crystalline phases. We also show results of optical and ultrasonic investigations on icosahedral Zn-Mg-Y single crystals. They fit well to the discussed growth and stabilization mechanism.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 643: Symposium K – Quasicrystals-Preparation, Properties, and Applications , 2000 , K1.4
Copyright
Copyright © Materials Research Society 2001

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