Jump to main content
Jump to site search
SCHEDULED MAINTENANCE Close the message box

Maintenance work is planned for Monday 16 August 2021 from 07:00 to 23:59 (BST).

Website performance may be temporarily affected and you may not be able to access some PDFs or images. If this does happen, refreshing your web browser should resolve the issue. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 28, 2011

Ferromagnetism in single crystal and nanocomposite Sr(Ti,Fe)O3 epitaxial films

Author affiliations

Abstract

The ferromagnetic properties and electrical leakage current of single-phase SrTi1−xFexO3 (STF) perovskite films are compared for two different samples: a single-crystal film with a (100) orientation, and a ‘doubly oriented’ nanocomposite film consisting of (110)-oriented nanopillars embedded homoepitaxially in a (100)-oriented matrix. The STF films contain mixed valence Fe ions, with a lower average valence state present in the single crystal film. The films are under an in-plane compressive strain, and exhibit an out-of-plane magnetic easy axis due to magnetoelastic effects. The nanopillars in the double-epitaxial STF films act as single ferromagnetic domains, whereas the single-crystal films show a maze-like domain structure. Composition fluctuations seen in single-crystal films are suppressed in the double-epitaxial structure, which has a lower electrical leakage current. First-principles modeling supports a tendency for Fe ions to occupy adjacent sites. The correlations between the valence state and distribution of the Fe ions, the microstructure, and the magnetic and electrical properties provide a general method of tailoring the properties of perovskite films, which have immense technological value in a range of multiferroic, ferromagnetic, optical, spintronic and hybrid devices.

Graphical abstract: Ferromagnetism in single crystal and nanocomposite Sr(Ti,Fe)O3 epitaxial films

Article information


Submitted
25 Mar 2011
Accepted
05 May 2011
First published
06 Jun 2011

J. Mater. Chem., 2011,21, 10364-10369
Article type
Paper

Ferromagnetism in single crystal and nanocomposite Sr(Ti,Fe)O3 epitaxial films

H. Kim, L. Bi, D. H. Kim, D. Yang, Y. J. Choi, J. W. Lee, J. K. Kang, Y. Chang Park, G. F. Dionne and C. A. Ross, J. Mater. Chem., 2011, 21, 10364 DOI: 10.1039/C1JM11286D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Search articles by author

Spotlight

Advertisements