High-temperature ferromagnetism in pulsed-laser deposited epitaxial (Zn,Mn)O thin films: Effects of substrate temperature

A. K. Pradhan, Kai Zhang, S. Mohanty, J. B. Dadson, D. Hunter, Jun Zhang, D. J. Sellmyer, U. N. Roy, Y. Cui, A. Burger, S. Mathews, B. Joseph, B. R. Sekhar, B. K. Roul

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

We report on the observation of remarkable room-temperature ferromagnetism in epitaxial (Zn,Mn)O films grown by a pulsed-laser deposition technique using high-density targets. The optimum growth conditions were demonstrated from x-ray measurements, microstructure, Rutherford backscattering, micro-Raman, and magnetic studies. Superior ferromagnetic properties were observed in (Zn,Mn)O films grown at a substrate temperature of 500 °C and with an oxygen partial pressure of 1 mTorr. Ferromagnetism becomes weaker with increasing substrate temperature due to the formation of isolated Mn clusters irrespective of higher crystalline quality of the film.

Original languageEnglish (US)
Article number152511
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number15
DOIs
StatePublished - Jul 4 2005

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ferromagnetism
pulsed lasers
thin films
pulsed laser deposition
partial pressure
temperature
backscattering
microstructure
room temperature
oxygen
x rays

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Pradhan, A. K., Zhang, K., Mohanty, S., Dadson, J. B., Hunter, D., Zhang, J., ... Roul, B. K. (2005). High-temperature ferromagnetism in pulsed-laser deposited epitaxial (Zn,Mn)O thin films: Effects of substrate temperature. Applied Physics Letters, 86(15), 1-3. [152511]. https://doi.org/10.1063/1.1897827

High-temperature ferromagnetism in pulsed-laser deposited epitaxial (Zn,Mn)O thin films : Effects of substrate temperature. / Pradhan, A. K.; Zhang, Kai; Mohanty, S.; Dadson, J. B.; Hunter, D.; Zhang, Jun; Sellmyer, D. J.; Roy, U. N.; Cui, Y.; Burger, A.; Mathews, S.; Joseph, B.; Sekhar, B. R.; Roul, B. K.

In: Applied Physics Letters, Vol. 86, No. 15, 152511, 04.07.2005, p. 1-3.

Research output: Contribution to journalArticle

Pradhan, AK, Zhang, K, Mohanty, S, Dadson, JB, Hunter, D, Zhang, J, Sellmyer, DJ, Roy, UN, Cui, Y, Burger, A, Mathews, S, Joseph, B, Sekhar, BR & Roul, BK 2005, 'High-temperature ferromagnetism in pulsed-laser deposited epitaxial (Zn,Mn)O thin films: Effects of substrate temperature', Applied Physics Letters, vol. 86, no. 15, 152511, pp. 1-3. https://doi.org/10.1063/1.1897827
Pradhan, A. K. ; Zhang, Kai ; Mohanty, S. ; Dadson, J. B. ; Hunter, D. ; Zhang, Jun ; Sellmyer, D. J. ; Roy, U. N. ; Cui, Y. ; Burger, A. ; Mathews, S. ; Joseph, B. ; Sekhar, B. R. ; Roul, B. K. / High-temperature ferromagnetism in pulsed-laser deposited epitaxial (Zn,Mn)O thin films : Effects of substrate temperature. In: Applied Physics Letters. 2005 ; Vol. 86, No. 15. pp. 1-3.
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