Detection of magnetic circular dichroism on the two-nanometer scale
2008 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 78, no 10, 104413- p.Article in journal (Refereed) Published
Magnetic circular dichroism (MCD) is a standard technique for the study of magnetic properties of materials in synchrotron beamlines. We present here a scattering geometry in the transmission electron microscope through which MCD can be observed with unprecedented spatial resolution. A convergent electron beam is used to scan a cross sectional preparation of a Fe/Au multilayer sample. Differences in the energy-loss spectra induced by the magnetic moments of the Fe atoms can be resolved with a resolution of better than 2 nm. This is a breakthrough achievement when compared both to the previous energy-loss MCD resolution (200 nm) or the best x-ray MCD experiments (approximately 20 nm).
Place, publisher, year, edition, pages
2008. Vol. 78, no 10, 104413- p.
Physical Sciences Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-107871DOI: 10.1103/PhysRevB.78.104413ISI: 000259690400062OAI: oai:DiVA.org:uu-107871DiVA: diva2:233363