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      Ultraviolet laser action in ferromagnetic Zn1-xFexO nanoneedles

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      148372_1.pdf (363.4Kb)
      Author
      Yang, H. Y.
      Yu, S. F.
      Lau, S. P.
      Herng, T. S.
      Tanemura, M.
      Date of Issue
      2009
      School
      School of Electrical and Electronic Engineering
      Version
      Published version
      Abstract
      Fe-doped ZnO nanoneedles (NDs) were fabricated by an Ar+ ion sputtering technique operated at room temperature. The as-grown samples show both ferromagnetic and lasing properties. The saturated magnetization moment was measured from 0.307 to 0.659 emu cm-3 at the field of 10 kOe with various Fe concentrations. Intense ultraviolet random lasing emission was observed from Zn1 - xFexO NDs at room temperature. The X-ray photoelectron spectroscopy result reveals that the doped Fe atoms occupy the Zn sites and lead to a decrease in oxygen deficiency.
      Subject
      DRNTU::Engineering::Electrical and electronic engineering
      Type
      Journal Article
      Series/Journal Title
      Nanoscale research letters
      Rights
      © 2009 The Author(s).
      Collections
      • EEE Journal Articles
      http://www.springerlink.com/content/r517745035734j01/
      Get published version (via NTU subscribed resources)
      http://dx.doi.org/10.1007/s11671-009-9473-9
      Get published version (via Digital Object Identifier)

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