Magnetic circular dichroism in Fe2presonant photoemission of magnetite

Magnetism at spinel thin film interfaces probed through soft X-ray spectroscopy techniques

“…A localized energy scan along the Fe L 2,3 edges in the field of view of Figure 3(a) for both light and dark domains yields spectra (Figure 3(e)), whose difference may be compared to other Fe 3 O 4 spectra to ascertain the local Fe environment. The resulting difference was similar in lineshape to data from thin film Fe 3 O 4 data, 20 suggesting that the Fe environment at the interface did not differ substantially from Fe in bulk Fe 3 O 4 . In order to understand the induced ferrimagnetism at the interface of these layers, we examined XAS and XMCD of the Fe, Cr, Co, and Mn L 2,3 edges in a systematic set of samples.…”

Large magnetic polarization of Ti4+ ions in FeTiO3

“…Paramagnetic Fe 2+ ions had large polarization under the magnetic field. However, in comparison with the calculated XAS for the octahedral Fe 2+ ions [5], the observed satellite structure marked by ''S'' was shifted apart from the main line and appeared just on the Fe 3+ main line position. Formation of Fe 3+ states was also confirmed by Mo¨ssbauer spectroscopy, where the Fe 3+ /Fe 2+ ratio was estimated at about 10%.…”

“…1(a) shows the Fe L 2,3 XAS and XMCD spectra of FeTiO 3 above the T N . Both spectra were nearly characteristic of the octahedral Fe 2+ states [5]. Paramagnetic Fe 2+ ions had large polarization under the magnetic field.…”

Hybridization-induced charge rebalancing at the weakly interactive C60/Fe3O4(001) spinterface

“…S2 in supporting information for more details). Referring to a previous theoretical framework [34], one can identify in Fig. 3(a) the site-resolved contribution of the three Fe ions as: B-Fe 2þ , A-Fe 3þ , and B-Fe 3þ at around 0.7, 3.8, and 5.5 eV binding energy, respectively.…”