Enhanced Ferromagnetic Ordering in GdBaCo$_{2}$O$_{5.5+δ}$ Films on SrTiO3 (001) Substrate

Simple item page
dc.creatorWang, G. Y.
dc.creatorZhou, X. Y.
dc.creatorZheng, R. K.
dc.creatorHu, Y. M.
dc.creatorChan, H. L. W.
dc.creatorWang, Y.
dc.date2009-01-10
dc.date.accessioned2026-07-07T12:28:18Z
dc.date.available2026-07-07T12:28:18Z
dc.descriptionThe authors investigated the structure and properties of GdBaCo$_{2}$O$_{5.5+δ}$ thin films epitaxially grown on SrTiO$_{3}$ (001) single crystal substrates. The thin films were found to have a notable remnant magnetization above room temperature, which is much higher than that observed in bulk material. Transmission electron microscopy and x-ray diffraction patterns reveal that phase separation occurs in these films, and the phase responsible for the enhanced ferromagnetic order is $a$-oriented. The enhanced ferromagnetic order is attributed to the enhanced orbital order of Co$^{3+}$ in CoO$_{5}$ pyramids, and the disappearance of ferromagnetic to antiferromagnetic transition is explained the stabilization of higher spin state of Co$^{3+}$ in CoO$_{6}$ octahedra.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0901.1388
dc.identifierhttp://arxiv.org/abs/0901.1388
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215493
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleEnhanced Ferromagnetic Ordering in GdBaCo$_{2}$O$_{5.5+δ}$ Films on SrTiO3 (001) Substrate
dc.typetext

Files

Collections

arXiv