Matches in SemOpenAlex for { <https://semopenalex.org/work/W2023961318> ?p ?o ?g. }
- W2023961318 abstract "We report a detailed structural characterization of Co films grown on $ensuremath{alpha}{text{-Fe}}_{2}{text{O}}_{3}(0001)$ for thicknesses up to 25 nm. Epitaxial and single-crystalline 20 nm thick $ensuremath{alpha}{text{-Fe}}_{2}{text{O}}_{3}(0001)$ layers deposited on $ensuremath{alpha}{text{-Al}}_{2}{text{O}}_{3}(0001)$ and Pt(111) single crystals were used as substrate. The $text{Co}/ensuremath{alpha}{text{-Fe}}_{2}{text{O}}_{3}(0001)$ interface is a prototypical magnetic exchange coupled system for which the magnetocrystalline parameters are crucial to address. We evidence medium range order requiring a multiscale approach to reach a reliable description of the crystalline structure. Surface extended x-ray absorption fine structure (EXAFS) and surface x-ray diffraction (SXRD) have been combined to describe the structure in an extended thickness range. Additional grazing incidence small angle x-ray scattering (GISAXS) measurements show that the growth is three dimensional up to $ensuremath{sim}3phantom{rule{0.3em}{0ex}}text{nm}$ and follows a nucleation---growth---coalescence scheme. For all thicknesses cobalt is found to grow with a lattice parameter close to its bulk lattice parameter. In the early stages of growth a disordered 2--3 monolayer thick interface exhibiting oxidized cobalt and metallic iron is evidenced. Long range order sets in for thickness above 4 nm showing the coexistence of fcc, twinned fcc, and hcp stacking within direct and in-surface-plane $30ifmmode^circelsetextdegreefi{}$ rotated epitaxial relationships." @default.
- W2023961318 created "2016-06-24" @default.
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- W2023961318 date "2010-02-17" @default.
- W2023961318 modified "2023-09-25" @default.
- W2023961318 title "Multiscale investigation of the structure and morphology of theCo/Fe2O3(0001)interface" @default.
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- W2023961318 doi "https://doi.org/10.1103/physrevb.81.085419" @default.
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