Growth of Magneto-optically Active (Zn,Mn)Se Nanowires

We describe the growth of Zn1−x Mn x Se nanowires in ultrahigh vacuum seeded by Au nanodroplets. Electron microscopy reveals the formation of single-crystal c-axis wurtzite nanowires (typically 1−3 μm long) with Mn concentrations up to x ≈ 0.6, accompanied by a dense horizontal undergrowth of shorte...

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Veröffentlicht in:	Nano letters 2009-09, Vol.9 (9), p.3142-3146
Hauptverfasser:	Cooley, B. J, Clark, T. E, Liu, B. Z, Eichfeld, C. M, Dickey, E. C, Mohney, S. E, Crooker, S. A, Samarth, N
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Gold - chemistry Magnetics Manganese - chemistry Materials science Materials Testing Metal Nanoparticles - chemistry Nanocrystalline materials Nanoscale materials and structures: fabrication and characterization Nanoscale materials: clusters, nanoparticles, nanotubes, and nanocrystals Nanotechnology Nanowires - chemistry Optics and Photonics Particle Size Physics Quantum wires Selenium - chemistry Structure of solids and liquids crystallography Surface Properties Zinc - chemistry
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Zusammenfassung:	We describe the growth of Zn1−x Mn x Se nanowires in ultrahigh vacuum seeded by Au nanodroplets. Electron microscopy reveals the formation of single-crystal c-axis wurtzite nanowires (typically 1−3 μm long) with Mn concentrations up to x ≈ 0.6, accompanied by a dense horizontal undergrowth of shorter, crooked nanowires. Magnetophotoluminescence measurements show evidence for sp−d exchange effects in a reduced symmetry environment. We find that the optical emission is surprisingly dominated by the undergrowth of crooked nanowires.
ISSN:	1530-6984 1530-6992
DOI:	10.1021/nl901272q