Characterization of ferromagnetic Co-implanted rutile TiO2(110)

V. Shutthanandan, S. Thevuthasan, M. H. Engelhard, T. Droubay, S. M. Heald, L. V. Saraf, S. A. Chambers, B. Taylor, R. P. Sears, B. Sinkovic, B. S. Mun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Co ions of energy 100 KeV and fluences between 1.25×1016 and 5.0×1016 Co+/cm2 were implanted in single crystal TiO2(110) substrates at temperatures of 300, 875 and 1075 K. Co depth profiles were obtained using X-ray photoelectron spectroscopy and Rutherford backscattering spectrometry. The Co diffused to a much greater depth when implanted at 1075 K compared to implantation at lower temperatures. The valence state of Co was investigated using Co K and L edge X-ray absorption near edge spectra. Although implantation at lower temperatures results in a mixture of metallic and oxidized Co, implantation at 1075 K results in no measurable Co(0) in the sample. The magnetic properties were investigated using magneto-optical Kerr-effect and vibrating sample magnetometer. The sample implanted at 1075 K shows ferromagnetic properties at room temperature.

Original languageEnglish
Title of host publicationProceedings of the IEEE Conference on Nanotechnology
PublisherIEEE Computer Society
Pages13-15
Number of pages3
Volume1
ISBN (Print)0780379764
DOIs
Publication statusPublished - 2003
Externally publishedYes
Event2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003 - San Francisco, United States
Duration: 12 Aug 200314 Aug 2003

Other

Other2003 3rd IEEE Conference on Nanotechnology, IEEE-NANO 2003
CountryUnited States
CitySan Francisco
Period12/8/0314/8/03

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Keywords

  • Backscatter
  • Electromagnetic wave absorption
  • Light sources
  • Magnetic materials
  • Magnetic properties
  • Magnetic semiconductors
  • Semiconductor materials
  • Spectroscopy
  • Substrates
  • Temperature

ASJC Scopus subject areas

  • Bioengineering
  • Electrical and Electronic Engineering
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Shutthanandan, V., Thevuthasan, S., Engelhard, M. H., Droubay, T., Heald, S. M., Saraf, L. V., Chambers, S. A., Taylor, B., Sears, R. P., Sinkovic, B., & Mun, B. S. (2003). Characterization of ferromagnetic Co-implanted rutile TiO2(110). In Proceedings of the IEEE Conference on Nanotechnology (Vol. 1, pp. 13-15). [1231702] IEEE Computer Society. https://doi.org/10.1109/NANO.2003.1231702