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American Institute of Physics, Applied Physics Letters, 22(91), p. 223103

DOI: 10.1063/1.2817599

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Hole-mediated electric field tunable high Curie temperature in Mn-doped wurtzite ZnO nanowires

Journal article published in 2007 by Xiu-Wen Zhang, Wei-Jun Fan ORCID, Shu-Shen Li, Jian-Bai Xia
This paper was not found in any repository, but could be made available legally by the author.
This paper was not found in any repository, but could be made available legally by the author.

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Abstract

The hole-mediated Curie temperature in Mn-doped wurtzite ZnO nanowires is investigated using the k∙p method and mean field model. The Curie temperature TC as a function of the hole density has many peaks for small Mn concentration (xeff) due to the density of states of one-dimensional quantum wires. The peaks of TC are merged by the carriers’ thermal distribution when xeff is large. High Curie temperature TC>400K is found in (Zn,Mn)O nanowires. A transverse electric field changes the Curie temperature a lot. (Zn,Mn)O nanowires can be tuned from ferromagnetic to paramagnetic by a transverse electric field at room temperature.