Room-temperature ferromagnetism in Cu-doped ZnO thin films

D. B. Buchholz, R. P.H. Chang, J. Y. Song, J. B. Ketterson

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Abstract

A series of copper-doped zinc oxide films were grown by pulsed-laser ablation. Films grown under conditions that produced n -type ZnO were nonmagnetic while those grown under conditions that produced p -type were ferromagnetic with a Curie temperature above 350 K. The magnetic moment per copper atom decreased as the copper concentration increased. An explanation for this result is proposed based on the distance between nearest-neighbor copper atoms.

Original languageEnglish
Article number082504
JournalApplied Physics Letters
Volume87
Issue number8
DOIs
Publication statusPublished - Aug 22 2005

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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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