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    3 results 1
    Université de Fribourg

    Magnetic properties of strained multiferroic $\mathrm{CoC}{\mathrm{r}}_{2}{\mathrm{O}}_{4}$: A soft x-ray study

    Windsor, Y. W. ; Piamonteze, C. ; Ramakrishnan, M. ; Scaramucci, A. ; Rettig, L. ; Huever, J. A. ; Bothschafter, E. M. ; Bingham, N. S. ; Alberca, Aurora ; Avula, S. R. V. ; Noheda, B. ; Staub, U.

    In: Physical Review B, 2017, vol. 95, no. 22, p. 224413

    Using resonant soft x-ray techniques we follow the magnetic behavior of a strained epitaxial film of CoCr2O4, a type-II multiferroic. The film is [110] oriented, such that both the ferroelectric and ferromagnetic moments can coexist in-plane. X-ray magnetic circular dichroism (XMCD) is used in scattering and in transmission modes to probe the magnetization of Co and Cr separately. The...

    Université de Fribourg

    Crystal symmetry lowering in chiral multiferroic ${\mathrm{Ba}}_{3}{\mathrm{TaFe}}_{3}{\mathrm{Si}}_{2}{\mathrm{O}}_{14}$ observed by x-ray magnetic scattering

    Ramakrishnan, M. ; Joly, Y. ; Windsor, Y. W. ; Rettig, L. ; Alberca, Aurora ; Bothschafter, E. M. ; Lejay, P. ; Ballou, R. ; Simonet, V. ; Scagnoli, V. ; Staub, U.

    In: Physical Review B, 2017, vol. 95, no. 20, p. 205145

    Chiral multiferroic langasites have attracted attention due to their doubly chiral magnetic ground state within an enantiomorphic crystal. We report on a detailed resonant soft x-ray diffraction study of the multiferroic Ba3TaFe3Si2O14 at the Fe L2,3 and oxygen K edges. Below TN (≈27K) we observe the satellite reflections (0,0,τ), (0,0,2τ), (0,0,3τ), and (0,0,1−3τ) where...

    Université de Fribourg

    Element-specific magnetization redistribution at ${\mathrm{YBa}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{7}/{\mathrm{La}}_{2/3}{\mathrm{Ca}}_{1/3}{\mathrm{MnO}}_{3}$ interfaces

    Alberca, Aurora ; Uribe-Laverde, Miguel Angel ; Windsor, Y. W. ; Ramakrishnan, M. ; Rettig, L. ; Marozau, Ivan ; Tonnerre, J-M. ; Stahn, J. ; Staub, U. ; Bernhard, Christian

    In: Physical Review B, 2015, vol. 92, no. 17, p. 174415

    We study the element-specific magnetic depth profiles of a YBa2Cu3O7/La2/3Ca1/3MnO3 (YBCO/LCMO) superlattice using soft x-ray resonant magnetic reflectometry (XRMR). This allows us to study the magnetic proximity effect (MPE) that is observed at the YBCO/LCMO interface, characterized by the occurrence of a depleted layer on the manganite side and an induced magnetization in the YBCO. Using the...

    3 results 1