Silicon based counterpart of alpha graphyne
Yazarlar (2)
E. Aktürk
Aydin Adnan Menderes University, Türkiye
Prof. Dr. Gökhan GÖKOĞLU Karabük Üniversitesi, Türkiye
Makale Türü Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale)
Dergi Adı Physics Letters Section A General Atomic and Solid State Physics (Q2)
Dergi ISSN 0375-9601 Dergi Bilgileri (2014)
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce Basım Tarihi 03-2014
Kabul Tarihi Yayınlanma Tarihi 01-03-2014
Cilt / Sayı / Sayfa 378 / 18 / 1313–1315 DOI 10.1016/j.physleta.2014.03.006
Makale Linki http://linkinghub.elsevier.com/retrieve/pii/S0375960114002394
UAK Araştırma Alanları
Yoğun Madde Fiziği
Özet
We present the first principles density functional calculations of electronic structure and energetics of silicon-based counterpart of α-graphyne, labeled as α-silicyne. Both LDA and GGA functionals are applied for exchange–correlation potentials. We show that graphyne-like silicon in 2D buckled structure (equilibrium buckling δ z≅ 0.73 and Δ z≅ 1.45 Å) has≈ 2.33 eV and≈ 1.96 eV lower energies than planar geometry for GGA and LDA functionals, respectively. The single and triple bond lengths of silicon are consistent with previously reported values. As a different case from graphyne, which is semimetallic, the electronic band structures of buckled α-silicyne do not show Dirac fermion indicating a metallic nature. The metallic character of the system is largely determined by p-electronic states of the triple bonded silicon atoms.
Anahtar Kelimeler
Atomic scale structure | Computer simulation | Nanostructured material | Silicene
Science Direct
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 4
Scopus 4
Google Scholar 4
Silicon based counterpart of alpha graphyne

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