Electronic structure of Al6Mg4Cu quasicrystals

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

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...

متن کامل

Structure in Quasicrystals

The very existence of a quasicrystalline state of matter, which was first discovered by Shecht-man et al. [1] in 1984 and has since been found in an abundance of compounds, poses two intellectual challenges. (1) What are the microscopic mechanisms that make the atoms form a highly ordered, yet not translationally invariant, quasiperiodic state; and (2) what is the nature of the quantum states o...

متن کامل

An Iridatropylium Cation: Investigation of Electronic Structure

A study of the [C6 H6 Ir(PH3 )3 ]+ iridatropylium cation structure based on frontier orbital analysis, thermodynamic analysis, and natural bond orbital (NBO) theory is the main aim of the present research. Also, HOMO, LUMO energies, hardness, electrophilicity and chemical potential were calculated. Structural analysis indicated the optimized geometry shows a good agreement with the experimental...

متن کامل

The Al3Ni2 Structure as Approximant of Quasicrystals

The present paper discusses the approximant nature of the A13N12 structure from the viewpoint of valence electron concentration (VEC) correspondence as well as from atomic structure correlation. Its VEC is close to that of corresponding quasicrystals and its atomic structure can be descnbed by layers stacked along the direction corresponding to the 10-fold axis of the decagonal phase. A large o...

متن کامل

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...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Physics: Conference Series

سال: 2008

ISSN: 1742-6588,1742-6596

DOI: 10.1088/1742-6596/98/6/062006