Electronic properties of quasicrystals.
نویسندگان
چکیده
منابع مشابه
Ja n 20 01 Electronic properties of ternary quasicrystals
The electronic properties of type II quasicrystals (QCs) in one dimension, namely ternary QCs which are generated by the cut-and-projection method, are analyzed. In particular, we present in detail the existence of a special kind of critical states called marginal critical states in these QCs. By the use of the exact real-space renormalization-group method, it is shown that the scaling properti...
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15 صفحه اولBulk 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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The aperiodic T-A180Mn20 phase is magnetic with an effective moment 1.3 pg / Mn. Below 4.1 K a spin glass state is observed. The T-phase and the quasi-crystalline A173Mn21Si6 phase have similar magnetic properties. The crystalline phase, obtained by annealing the T-phase, is less magnetic than the T-phase. Quasi-crystalline (qc) phases, first discovered in Al-Mn based alloys, are aperiodic crys...
متن کامل2 9 Ja n 20 01 Electronic properties of ternary quasicrystals
The one-electron properties of type II quasicrystals (QCs) in one dimension, namely ternary QCs which are generated by the cut-and-projection method, are analyzed. In particular, we show in detail the presence of a special kind of critical states called marginal critical states in these QCs. By the use of a real-space renormalization-group method, it is shown that the scaling properties of marg...
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ژورنال
عنوان ژورنال: Bulletin of the Japan Institute of Metals
سال: 1990
ISSN: 0021-4426,1884-5835
DOI: 10.2320/materia1962.29.827