'In-situ' solution processed room temperature ferromagnetic MgO thin films printed by inkjet technique
2011 (English)In: Materials Research Society Symposium Proceedings, 2011, 105-109 p.Conference paper (Refereed)
We report on 'in-situ' solution processed homogeneous (200) oriented MgO ∼85nm thin films deposited on Si substrates by inkjet printing. These films are found to show ferromagnetic order beyond room temperature with a saturation magnetization MS as high as ∼0.63 emu/g. X-ray photoelectron spectroscopy investigations show the absence of any possible contamination effects, while the Mg 2p, and O 1s spectra indicate that the role of defect structure at the Mg site is important in the observed magnetism. By controlling the pH values of the precursors the concentration of the defects can be varied and hence tune the magnetization at room temperature. The origin of magnetism in these MgO thin films appears to arise from the cation vacancies.
Place, publisher, year, edition, pages
2011. 105-109 p.
, Materials Research Society Symposium Proceedings, ISSN 0272-9172 ; 1292
Cation vacancies, Ferromagnetic orders, In-situ, Ink-jet technique, MgO thin films, pH value, Room temperature, Si substrates, Solution-processed, Defects, Ferromagnetic materials, Ferromagnetism, Oxide films, Photoelectron spectroscopy, Semiconducting silicon compounds, Thin films, X ray photoelectron spectroscopy, Saturation magnetization
IdentifiersURN: urn:nbn:se:kth:diva-150742DOI: 10.1557/opl.2011.368ScopusID: 2-s2.0-80053219242ISBN: 9781605112695OAI: oai:DiVA.org:kth-150742DiVA: diva2:745746
2010 MRS Fall Meeting, 29 November 2010 through 3 December 2010, Boston, MA
QC 201409112014-09-112014-09-092014-09-11Bibliographically approved