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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/1214

Title: Study of the effect of high electronic excitations in quasicrystals irradiated with heavy ions
Authors: Coddens, Gerrit
Dunlop, Annie
Dammak, Hichem
Chatterjee, Ratnamala
Calvayrac, Yvonne
Quiquandon, Marianne
Elkaïm, Erik
Gailhanou, Mark
Rouzière, Stéphan
Keywords: Swift-heavy-ion irradiation
Electronic excitation
X-ray diffraction
Phason strain
Issue Date: 2003
Citation: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 211(1), 122-132
Abstract: We have studied the effect of irradiation with 900 MeV Pb and 780 MeV Xe ions on quasicrystals Al62Cu25.5Fe12.5 and the related cubic α-phase Al55Cu27Fe11Si7. The fluences ranged from 1010 to 5.8 × 1013 ions/cm2. Irradiations were performed at 80 K and at room temperature. The structural changes induced by the electronic excitations were studied by high-resolution X-ray diffraction. Whereas one might have expected the irradiations to induce important structural transformations, e.g. a phase transition from an icosahedral to a rhombohedral phase, only minor structural modifications are observed in the icosahedral phase and none in the α-phase. The defects created are not phasonic. Our results suggest a remarkable structural stability of these phases with respect to heavy-ion irradiation.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/1214
Appears in Collections:Physics

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