Epitaxial Growth of Room-Temperature Ferromagnetic MnAs Segments on GaAs Nanowires via Sequential Crystallization
详细信息 查看全文
- 作者：Joachim Hubmann ; Benedikt Bauer ; Helmut S. K?rner ; Stephan Furthmeier ; Martin Buchner ; Günther Bayreuther ; Florian Dirnberger ; Dieter Schuh ; Christian H. Back ; Josef Zweck ; Elisabeth Reiger ; Dominique Bougeard
- 刊名：Nano Letters
- 出版年：2016
- 出版时间：February 10, 2016
- 年：2016
- 卷：16
- 期：2
- 页码：900-905
- 全文大小：372K
- ISSN：1530-6992
文摘
We investigate the incorporation of manganese into self-catalyzed GaAs nanowires grown in molecular beam epitaxy. Our study reveals that Mn accumulates in the liquid Ga droplet and that no significant incorporation into the nanowire is observed. Using a sequential crystallization of the droplet, we then demonstrate a deterministic and epitaxial growth of MnAs segments at the nanowire tip. This technique may allow the seamless integration of multiple room-temperature ferromagnetic segments into GaAs nanowires with high-crystalline quality.