TITLE

Oxygen vacancy induced re-entrant spin glass behavior in multiferroic ErMnO3 thin films

AUTHOR(S)
Jang, S. Y.; Lee, D.; Lee, J.-H.; Noh, T. W.; Jo, Y.; Jung, M.-H.; Chung, J.-S.
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/20/2008, Vol. 93 Issue 16, p162507
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Epitaxial thin films of hexagonal ErMnO3 fabricated on Pt(111)/Al2O3(0001) and yttria-stabilized zirconia(111) substrates exhibited both ferroelectric character and magnetic ordering at low temperatures. As the temperature was reduced, the ErMnO3 films first showed antiferromagnetism. At lower temperatures, the films deposited at lower oxygen partial pressures exhibited spin glass behavior. This re-entrant spin glass behavior was attributed to competition between an antiferromagnetic interaction in the hexagonal geometry and a ferromagnetic interaction caused by a change in Mn valence induced by excess electrons from the oxygen vacancies.
ACCESSION #
35279301

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics