Electronic structure of leached Al–Cu–Fe quasicrystals used as catalysts
نویسندگان
چکیده
منابع مشابه
Bulk electronic structure of quasicrystals.
We use hard x-ray photoemission to resolve a controversial issue regarding the mechanism for the formation of quasicrystalline solids, i.e., the existence of a pseudogap at the Fermi level. Our data from icosahedral fivefold Al-Pd-Mn and Al-Cu-Fe quasicrystals demonstrate the presence of a pseudogap, which is not observed in surface sensitive low energy photoemission because the spectrum is aff...
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Quasicrystals are solids that exhibit symmetries long thought forbidden in nature. Since their discovery in a rapidly solidified Al-Mn alloy in 1984, the central issue in the field has been to understand why they form. Are they energetically stable compounds or stabilized by entropy? In recent years, major strides have been made in determining atomic structure, largely by direct imaging using a...
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ژورنال
عنوان ژورنال: Philosophical Magazine
سال: 2006
ISSN: 1478-6435,1478-6443
DOI: 10.1080/14786430500318902