TY - JOUR
T1 - Local structure at Mn sites in icosahedral Mn-Al quasicrystals
AU - Stern, E. A.
AU - Ma, Y.
AU - Bouldin, C. E.
PY - 1985
Y1 - 1985
N2 - Extended x-ray-absorption fine-structure measurements have been made at the Mn K edge of quasicrystalline and crystalline forms of an Al6Mn alloy. Two different quasicrystalline Mn sites are discerned to be populated in the ratio of, the golden mean, within experimental error. The more populous site is similar to that in the crystal but with bond-angle distortions and elimination of an unusually short Al-Mn bond, while the other site has additional bond-stretching distortions. The measurements together with density measurements indicate that the volume per Mn site is independent of the type of site.
AB - Extended x-ray-absorption fine-structure measurements have been made at the Mn K edge of quasicrystalline and crystalline forms of an Al6Mn alloy. Two different quasicrystalline Mn sites are discerned to be populated in the ratio of, the golden mean, within experimental error. The more populous site is similar to that in the crystal but with bond-angle distortions and elimination of an unusually short Al-Mn bond, while the other site has additional bond-stretching distortions. The measurements together with density measurements indicate that the volume per Mn site is independent of the type of site.
UR - http://www.scopus.com/inward/record.url?scp=11544364932&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.55.2172
DO - 10.1103/PhysRevLett.55.2172
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AN - SCOPUS:11544364932
SN - 0031-9007
VL - 55
SP - 2172
EP - 2175
JO - Physical Review Letters
JF - Physical Review Letters
IS - 20
ER -