Exploration of artificial multiferroic thin-film heterostructures using composition spreads

K. S. Chang, M. A. Aronova, C. L. Lin, M. Murakami, M. H. Yu, J. Hattrick-Simpers, O. O. Famodu, S. Y. Lee, R. Ramesh, M. Wuttig, I. Takeuchi, C. Gao, L. A. Bendersky

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)

Abstract

The fabrication of a series of composition spreads consisting of ferroelectric BaTiO 3 and piezoelectric CoFe 2O 4 layers of varying thickness modulated at nanometer level in order to explore artificial magnetoresistance thin-film heterostructures was discussed. The scanning microwave microscopy and scanning superconducting quantum interference device microscopy were used for mapping the dielectric and magnetic properties as a function of continuously changing average composition across the spreads, respectively. The compositions in the middle of the spreads were found to exhibit ferromagnetism where as displaying a dielectric constant as high as ≈ 120.

Original languageEnglish
Pages (from-to)3091-3093
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number16
DOIs
Publication statusPublished - 2004 Apr 19

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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