Depth-resolved resonant inelastic x-ray scattering at a superconductor/half-metallic-ferromagnet interface through standing wave excitation
| Autor: | Arturas Vailionis, Nicholas B. Brookes, Mark Huijben, Lucio Braicovich, Giuseppe Balestrino, Johan Verbeeck, Nicolas Gauquelin, Gabriella Maria De Luca, Jeffrey B. Kortright, Yingying Peng, D. Di Castro, Timm Gerber, Giacomo Claudio Ghiringhelli, Julia Meyer-Ilse, Davide Betto, Tom Wijnands, Charles S. Fadley, Eric M. Gullikson, Mathias Gehlmann, Cheng-Tai Kuo, S.-C. Lin |
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| Přispěvatelé: | Kuo, C. -T., Lin, S. -C., Ghiringhelli, G., Peng, Y., De Luca, G. M., Castro, Di, Betto, D., Gehlmann, D., Wijnands, M., Huijben, T., Meyer-Ilse, M., Gullikson, J., Kortright, E., Vailionis, J. B., Gauquelin, A., Verbeeck, N., Gerber, J., Balestrino, T., Brookes, G., Braicovich, N. B., Fadley, L., C. S., Inorganic Materials Science, MESA+ Institute |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
cond-mat.supr-con
Fluids & Plasmas FOS: Physical sciences 02 engineering and technology 01 natural sciences Settore FIS/03 - Fisica della Materia Standing wave Superconductivity (cond-mat.supr-con) Condensed Matter - Strongly Correlated Electrons Condensed Matter::Materials Science Engineering Condensed Matter::Superconductivity 0103 physical sciences 010306 general physics Physics Superconductivity Condensed Matter - Materials Science Condensed matter physics Strongly Correlated Electrons (cond-mat.str-el) Scattering Condensed Matter - Superconductivity Materials Science (cond-mat.mtrl-sci) Heterojunction Observable 021001 nanoscience & nanotechnology cond-mat.mtrl-sci Resonant inelastic X-ray scattering Ferromagnetism Physical Sciences Chemical Sciences Condensed Matter::Strongly Correlated Electrons cond-mat.str-el 0210 nano-technology Excitation |
| Zdroj: | Physical review B Physical Review B, vol 98, iss 23 Physical review B: Covering condensed matter and materials physics, 98(23):235146. American Institute of Physics |
| ISSN: | 2469-9969 2469-9950 |
| Popis: | We demonstrate that combining standing-wave (SW) excitation with resonant inelastic x-ray scattering (RIXS) can lead to depth resolution and interface sensitivity for studying orbital and magnetic excitations in correlated oxide heterostructures. SW-RIXS has been applied to multilayer heterostructures consisting of a superconductor La$_{1.85}$Sr$_{0.15}$CuO$_{4}$(LSCO) and a half-metallic ferromagnet La$_{0.67}$Sr$_{0.33}$MnO$_{3}$ (LSMO). Easily observable SW effects on the RIXS excitations were found in these LSCO/LSMO multilayers. In addition, we observe different depth distribution of the RIXS excitations. The magnetic excitations are found to arise from the LSCO/LSMO interfaces, and there is also a suggestion that one of the dd excitations comes from the interfaces. SW-RIXS measurements of correlated-oxide and other multilayer heterostructures should provide unique layer-resolved insights concerning their orbital and magnetic excitations, as well as a challenge for RIXS theory to specifically deal with interface effects. Comment: 18 pages, 3 figures, plus supplemental materials (14 pages) |
| Databáze: | OpenAIRE |
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