High-quality CoFe2O4 thin films with large coercivity grown via a wet chemical route

Chengxi Zhao, Anming Gao, Yansong Yang, Cheng Tu, Ankita Bhutani, Kathy A. Walsh, Songbin Gong, Daniel P. Shoemaker

Research output: Contribution to journalArticle

Abstract

In permanent magnet applications, response often scales with volume or dimension in power-conversion and magnetostrictive applications, even in film form. In microelectromechanical devices it is necessary to explore versatile methods of dense film deposition with film thicknesses approaching one micron. In this study, we present a wet chemical route to hard magnetic cobalt ferrite (CoFe2O4) films to produce films with large coercivity, controllable thickness, saturation approaching that of the bulk, and smoother morphology than state-of-the art sputtered or pulsed-laser-deposited films. The development of etching and releasing processes demonstrates how these films are suitable for precise engineering in a variety of form factors and applications.

Original languageEnglish (US)
Article number035126
JournalAIP Advances
Volume9
Issue number3
DOIs
StatePublished - Mar 1 2019

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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