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Published on: December 21, 2015
Growth of magneto-optically active (Zn,Mn)Se nanowires
B J Cooley1, T E Clark, B Z Liu
1Center for Nanoscale Science and Materials Research Institute, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Abstract:
We describe the growth of Zn(1-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 microm long) with Mn concentrations up to x approximately 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.
