| Tartalom: |
http://real.mtak.hu/60123/ |
| Archívum: |
MTA Könyvtár |
| Gyűjtemény: |
Status = Published
Type = Article
|
| Cím: |
Diffusion-Controlled Anisotropic Growth of Stable and Metastable Crystal Polymorphs in the Phase-Field Crystal Model
|
| Létrehozó: |
Tegze, György
Gránásy, László
TĂłth, Gyula I.
Podmaniczky, Frigyes
Jaatinen, Akusti
Ala-Nissila, Tapio
Pusztai, Tamás
|
| Kiadó: |
American Physical Society
|
| Dátum: |
2009-07-17
|
| Téma: |
QC06 Physics of condensed matter / szilárdtestfizika
|
| Tartalmi leírás: |
We use a simple density functional approach on a diffusional time scale, to address freezing to the body-centered cubic (bcc), hexagonal close-packed (hcp), and face-centered cubic (fcc) structures. We observe faceted equilibrium shapes and diffusion-controlled layerwise crystal growth consistent with twodimensional nucleation. The predicted growth anisotropies are discussed in relation with results from
experiment and atomistic simulations. We also demonstrate that varying the lattice constant of a simple cubic substrate, one can tune the epitaxially growing body-centered tetragonal structure between bcc and fcc, and observe a Mullins-Sekerka–Asaro-Tiller-Grinfeld-type instability.
|
| Nyelv: |
angol
|
| Típus: |
Article
PeerReviewed
info:eu-repo/semantics/article
|
| Formátum: |
text
|
| Azonosító: |
Tegze, György and Gránásy, László and Tóth, Gyula I. and Podmaniczky, Frigyes and Jaatinen, Akusti and Ala-Nissila, Tapio and Pusztai, Tamás (2009) Diffusion-Controlled Anisotropic Growth of Stable and Metastable Crystal Polymorphs in the Phase-Field Crystal Model. PHYSICAL REVIEW LETTERS, 103 (3). pp. 1-4. ISSN 0031-9007
|
| Kapcsolat: |
https://doi.org/10.1103/PhysRevLett.103.035702
Collaborative Project ENSEMBLE under Grant Agreement NMP4-SL-2008-213669
|
| Létrehozó: |
info:eu-repo/semantics/restrictedAccess
|
