Abstract
Growth of artificial pinning centers (APCs) in YBa2Cu3O7-δ(YBCO) films are discussed. The APCs used in this research are BaZrO3 and BaSnO3 nanorods which are reported by Mele et al. TEM images show these nanorods gradually bend accordingly with approaching to a surface of films. This feature showed a growth pattern like a firework. We explain the feature of the nanorods as follows; At an early growth stage, films grow in a layer by layer growth mode. The surface of the films is flat and very smooth. After the early growth stage, the film surface gradually becomes rough, indicating the film grows in a Stranski-Krastanov growth mode. This roughness was caused by a spiral growth of films with many steps. At the step of YBCO films, nanorod materials such as BaZrO3 are supplied from one direction. Then, the center of nanorods sifts to the same direction of the step flow. Then, the nanorods bend to the edge of the grains in the films. As a grain in spiral growth had a convex surface, nanorods bent to the direction perpendicular to the grain surface. Finally, nanorods in rough grains form firework structures.
| Original language | English |
|---|---|
| Pages (from-to) | 1631-1636 |
| Number of pages | 6 |
| Journal | Physics Procedia |
| Volume | 36 |
| DOIs | |
| Publication status | Published - 2012 Jan 1 |
| Externally published | Yes |
| Event | Superconductivity Centennial Conference, SCC 2011 - The Hague, Netherlands Duration: 2011 Sep 18 → 2011 Sep 23 |
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Keywords
- Nanorods
- Sep banbo
- Sep BaSnO
- Sep BaZrO
- Sep PLD
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
An explanation for bends of 1-dimensional nanorods. / Mukaida, Masashi; Ichinose, Ataru; Mele, Paolo; Matsumoto, Kaname; Horii, Shigeru; Yoshida, Yutaka.
In: Physics Procedia, Vol. 36, 01.01.2012, p. 1631-1636.Research output: Contribution to journal › Conference article
}
TY - JOUR
T1 - An explanation for bends of 1-dimensional nanorods
AU - Mukaida, Masashi
AU - Ichinose, Ataru
AU - Mele, Paolo
AU - Matsumoto, Kaname
AU - Horii, Shigeru
AU - Yoshida, Yutaka
PY - 2012/1/1
Y1 - 2012/1/1
N2 - Growth of artificial pinning centers (APCs) in YBa2Cu3O7-δ(YBCO) films are discussed. The APCs used in this research are BaZrO3 and BaSnO3 nanorods which are reported by Mele et al. TEM images show these nanorods gradually bend accordingly with approaching to a surface of films. This feature showed a growth pattern like a firework. We explain the feature of the nanorods as follows; At an early growth stage, films grow in a layer by layer growth mode. The surface of the films is flat and very smooth. After the early growth stage, the film surface gradually becomes rough, indicating the film grows in a Stranski-Krastanov growth mode. This roughness was caused by a spiral growth of films with many steps. At the step of YBCO films, nanorod materials such as BaZrO3 are supplied from one direction. Then, the center of nanorods sifts to the same direction of the step flow. Then, the nanorods bend to the edge of the grains in the films. As a grain in spiral growth had a convex surface, nanorods bent to the direction perpendicular to the grain surface. Finally, nanorods in rough grains form firework structures.
AB - Growth of artificial pinning centers (APCs) in YBa2Cu3O7-δ(YBCO) films are discussed. The APCs used in this research are BaZrO3 and BaSnO3 nanorods which are reported by Mele et al. TEM images show these nanorods gradually bend accordingly with approaching to a surface of films. This feature showed a growth pattern like a firework. We explain the feature of the nanorods as follows; At an early growth stage, films grow in a layer by layer growth mode. The surface of the films is flat and very smooth. After the early growth stage, the film surface gradually becomes rough, indicating the film grows in a Stranski-Krastanov growth mode. This roughness was caused by a spiral growth of films with many steps. At the step of YBCO films, nanorod materials such as BaZrO3 are supplied from one direction. Then, the center of nanorods sifts to the same direction of the step flow. Then, the nanorods bend to the edge of the grains in the films. As a grain in spiral growth had a convex surface, nanorods bent to the direction perpendicular to the grain surface. Finally, nanorods in rough grains form firework structures.
KW - Nanorods
KW - Sep banbo
KW - Sep BaSnO
KW - Sep BaZrO
KW - Sep PLD
UR - http://www.scopus.com/inward/record.url?scp=84960346921&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84960346921&partnerID=8YFLogxK
U2 - 10.1016/j.phpro.2012.06.320
DO - 10.1016/j.phpro.2012.06.320
M3 - Conference article
VL - 36
SP - 1631
EP - 1636
JO - Physics Procedia
JF - Physics Procedia
SN - 1875-3884
ER -