Structural and ferromagnetic properties of epitaxial SrRuO3 thin films obtained by polymer-assisted deposition

H M Luo; M Jain; S A Baily; T M McCleskey; A K Burrell; E Bauer; R F DePaula; P C Dowden; L Civale; Q X Jia

doi:10.1021/jp0718451

Structural and ferromagnetic properties of epitaxial SrRuO3 thin films obtained by polymer-assisted deposition

J Phys Chem B. 2007 Jul 5;111(26):7497-500. doi: 10.1021/jp0718451. Epub 2007 Jun 16.

Authors

H M Luo¹, M Jain, S A Baily, T M McCleskey, A K Burrell, E Bauer, R F DePaula, P C Dowden, L Civale, Q X Jia

Affiliation

¹ Materials Physics and Applications Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. hluo@lanl.gov

PMID: 17571878
DOI: 10.1021/jp0718451

Abstract

Epitaxial ferromagnetic SrRuO3 thin films with a room-temperature resistivity of 300 microOmega.cm have been successfully grown on LaAlO3(001) substrates at a processing temperature in the range of 550-750 degrees C by a polymer-assisted deposition technique. X-ray diffraction analysis shows good epitaxial quality of SrRuO3 thin films, giving values of the full width at half-maximum (FWHM) of 0.42 degrees from the rocking curve for the (002) reflection and 1.1 degrees from the in-plane phi scan for the (204) reflection. Both the resistivity and the magnetization versus temperature measurements show that the SrRuO3 films are ferromagnetic with a transition temperature of 160 K. The spontaneous magnetization near the ferromagnetic transition follows the scaling law, and the low-temperature magnetization follows the Bloch law.