Effect of ablated particle flux on MgO nanowire growth by pulsed laser deposition

Aurelian Marcu, Takeshi Yanagida, Kazuki Nagashima, Hidekazu Tanaka, Tomoji Kawai

研究成果: Contribution to journalArticle査読

41 被引用数 (Scopus)

抄録

Oxide nanowire growth using a pulsed laser deposition (PLD) is a promising process since this essentially allows incorporating a rich functionality of various transition metal oxides into nanowires via the heterostructures. Here we investigate the effect of ablated particle flux on magnesium oxide nanowire growth by PLD. When varying the distance between the ablated material and the substrate, the small variation in ablated particle flux generated by a different plume expansion time influences mainly the growth rate while keeping the growth regime. However, varying the laser energy changes not only the growth rate but also the growth regime. Below a critical value of the laser energy the surface morphology tends to show an island growth rather than a nanowire growth. We attribute the existence of such a threshold to the desorption process from the catalyst droplet.

本文言語英語
論文番号016102
ジャーナルJournal of Applied Physics
102
1
DOI
出版ステータス出版済み - 2007
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)

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