Effects of anisotropic surface drift diffusion on the strained heteroepitaxial nanoislands subjected to electromigration stressing
Yazarlar (3)
Tarik Omer Ogurtani
Middle East Technical University (Metu), Türkiye
Middle East Technical University (Metu), Türkiye
Dr. Öğr. Üyesi Aytaç ÇELİK Sinop Üniversitesi, Türkiye
Dr. Öğr. Üyesi Ersin Emre Oren Tobb University of Economics And Technology, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Journal of Applied Physics (Q2) | ||
| Dergi ISSN | 0021-8979 Dergi Bilgileri (2022) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 02-2022 |
| Cilt / Sayı / Sayfa | 131 / 7 / – | DOI | 10.1063/5.0067760 |
| Makale Linki | https://doi.org/10.1063/5.0067760 | ||
| UAK Araştırma Alanları |
Fiziksel Metalurji
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| Özet |
| A systematic study based on self-consistent dynamical simulations is presented for the morphological evolutionary behavior of an isolated thin Ge/Si nanoisland (quantum dot) on a rigid substrate exposed to electromigration forces. This morphological evolution is basically induced by the anisotropic surface drift diffusion, driven by the capillary forces, the lattice mismatch stresses, and the wetting potential. In this study, we have mainly focused on the size and shape development kinetics of quantum dots, known as the “Stranski–Krastanov”(SK) morphology, influenced by applied electromigration stresses. Emphasis is given to the effects of rotational symmetry associated with the anisotropic diffusivity in 2D space (ie, quantum wires in 3D). The pointed bullet-shaped “Stranski–Krastanov” islands with high aspect ratios, ξ= 0.77, are formed at the cathode edge, while the whole nanoisland slightly creeps out of the initial … |
| Anahtar Kelimeler |
| SINGLE-CRYSTAL FILMS | THIN-FILM | MORPHOLOGICAL INSTABILITY | IRREVERSIBLE-PROCESSES | RECIPROCAL RELATIONS | EVOLUTION | CAPILLARY | ISLANDS | DRIVEN | GE |
BM Sürdürülebilir Kalkınma Amaçları
| Atıf Sayıları | |
| Web of Science | 3 |
| Scopus | 3 |
| Google Scholar | 3 |