TY - JOUR
T1 - Spectroscopic study on chemical ordering of transition metals in decagonal Al-Co-Ni and Al-Co-Cu quasicrystals
AU - Inukai, M.
AU - Soda, K.
AU - Kato, M.
AU - Yagi, S.
AU - Tezuka, Y.
AU - Yokoyama, Y.
AU - Muro, T.
AU - Saitoh, Y.
PY - 2010
Y1 - 2010
N2 - Preferred occupation at the transition metal (TM) sites in the building unit cluster of two-dimensional Al-Co-Ni and Al-Co-Cu quasicrystals has been investigated by comparing their experimental electronic structures with those of the unit clusters calculated by a discrete variational Xa method. Analysis of the bonding character and bond energy for local clusters around the TM sites shows that the Al-Co-Cu quasicrystal favours the Cu and Co occupations at the first and second inner TM sites, respectively, and hence the chemical order of these TM's, while the small bond energy difference in the Ni and Co occupations at those TM sites suggests the large chemical disorder of the transition metals in the Al-Co-Ni quasicrystal.
AB - Preferred occupation at the transition metal (TM) sites in the building unit cluster of two-dimensional Al-Co-Ni and Al-Co-Cu quasicrystals has been investigated by comparing their experimental electronic structures with those of the unit clusters calculated by a discrete variational Xa method. Analysis of the bonding character and bond energy for local clusters around the TM sites shows that the Al-Co-Cu quasicrystal favours the Cu and Co occupations at the first and second inner TM sites, respectively, and hence the chemical order of these TM's, while the small bond energy difference in the Ni and Co occupations at those TM sites suggests the large chemical disorder of the transition metals in the Al-Co-Ni quasicrystal.
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U2 - 10.1088/1742-6596/226/1/012010
DO - 10.1088/1742-6596/226/1/012010
M3 - Conference article
AN - SCOPUS:77954743492
VL - 226
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012010
T2 - 6th International Conference on Aperiodic Crystals, APERIODIC'09
Y2 - 13 September 2009 through 18 September 2009
ER -