Studies of two- and three-dimensional ZnO

Co structures through different synthetic routes

A. B. Pakhomov, B. K. Roberts, A. Tuan, V. Shutthanandan, D. McCready, S. Thevuthasan, S. A. Chambers, Kannan M. Krishnan

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The synthesis of Al codoped ZnO:Co dilute magnetic semiconductor (DMS) bulk films using metalorganic chemical vapor deposition, and DMS superlattices by ion beam sputtering (IBS), with the Curie temperature higher than the room temperature was analyzed. The magnetization, magnetoresistance, and resistivity measurements, which were performed in the temperature range of 2.5-300 K, were also analyzed. The morphology of the DMS films and superlattices was investigated using x-ray diffraction. It was found that overdoping with cobalt had resulted in the supression of high temperature ferromagnetism in the multilayers, and a crossover to superparamagnetism with varied dimensionality.

Original languageEnglish
Pages (from-to)7393-7395
Number of pages3
JournalJournal of Applied Physics
Volume95
Issue number11 II
DOIs
Publication statusPublished - 1 Jun 2004
Externally publishedYes

Fingerprint

routes
superlattices
ferromagnetism
metalorganic chemical vapor deposition
Curie temperature
crossovers
x ray diffraction
cobalt
sputtering
ion beams
magnetization
electrical resistivity
room temperature
synthesis
temperature

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Cite this

Pakhomov, A. B., Roberts, B. K., Tuan, A., Shutthanandan, V., McCready, D., Thevuthasan, S., ... Krishnan, K. M. (2004). Studies of two- and three-dimensional ZnO: Co structures through different synthetic routes. Journal of Applied Physics, 95(11 II), 7393-7395. https://doi.org/10.1063/1.1669224

Studies of two- and three-dimensional ZnO : Co structures through different synthetic routes. / Pakhomov, A. B.; Roberts, B. K.; Tuan, A.; Shutthanandan, V.; McCready, D.; Thevuthasan, S.; Chambers, S. A.; Krishnan, Kannan M.

In: Journal of Applied Physics, Vol. 95, No. 11 II, 01.06.2004, p. 7393-7395.

Research output: Contribution to journalArticle

Pakhomov, AB, Roberts, BK, Tuan, A, Shutthanandan, V, McCready, D, Thevuthasan, S, Chambers, SA & Krishnan, KM 2004, 'Studies of two- and three-dimensional ZnO: Co structures through different synthetic routes', Journal of Applied Physics, vol. 95, no. 11 II, pp. 7393-7395. https://doi.org/10.1063/1.1669224
Pakhomov AB, Roberts BK, Tuan A, Shutthanandan V, McCready D, Thevuthasan S et al. Studies of two- and three-dimensional ZnO: Co structures through different synthetic routes. Journal of Applied Physics. 2004 Jun 1;95(11 II):7393-7395. https://doi.org/10.1063/1.1669224
Pakhomov, A. B. ; Roberts, B. K. ; Tuan, A. ; Shutthanandan, V. ; McCready, D. ; Thevuthasan, S. ; Chambers, S. A. ; Krishnan, Kannan M. / Studies of two- and three-dimensional ZnO : Co structures through different synthetic routes. In: Journal of Applied Physics. 2004 ; Vol. 95, No. 11 II. pp. 7393-7395.
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