Title: Reversible phase changes in Ge-Au nanoparticles
Authors: Guzman, J ×
Boswell-Koller, C. N
Beeman, J. W
Bustillo, K. C
Conry, T
Dubon, O. D
Hansen, W. L
Levander, A. X
Liao, C. Y
Lieten, Ruben
Sawyer, C. A
Sherburne, M. P
Shin, S. J
Stone, P. R
Watanabe, M
Yu, K. M
Ager, J. W
Chrzan, D. C
Haller, E. E #
Issue Date: May-2011
Publisher: American Institute of Physics
Series Title: Applied Physics Letters vol:98 issue:19 pages:-
Article number: 193101
Abstract: We demonstrate a reversible phase transition in nanoparticles composed of a binary eutectic alloy, Ge-Au. The structure, 9 nm diameter nanoparticles embedded in silica, can be switched from bilobe to mixed using a 30 ns ultraviolet laser pulse. The structure can be switched back to bilobe by heating at 80 degrees C. The bilobe/mixed switching can be performed on the same sample at least ten times. Synchrotron X-ray diffraction studies reveal that the bilobe structure contains crystalline Ge and Au while the mixed structure consists of crystalline Ge and beta Ge-Au. (C) 2011 American Institute of Physics. [doi:10.1063/1.3584850]
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Non-KU Leuven Association publications
× corresponding author
# (joint) last author

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