تقرير
Depth-resolved resonant inelastic x-ray scattering at a superconductor/half-metallic ferromagnet interface through standing-wave excitation
| العنوان: | Depth-resolved resonant inelastic x-ray scattering at a superconductor/half-metallic ferromagnet interface through standing-wave excitation |
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| المؤلفون: | Kuo, Cheng-Tai, Lin, Shih-Chieh, Ghiringhelli, Giacomo, Peng, Yingying, De Luca, Gabriella Maria, Di Castro, Daniele, Betto, Davide, Gehlmann, Mathias, Wijnands, Tom, Huijben, Mark, Meyer-Ilse, Julia, Gullikson, Eric, Kortright, Jeffrey B., Vailionis, Arturas, Gauquelin, Nicolas, Verbeeck, Johan, Gerber, Timm, Balestrino, Giuseppe, Brookes, Nicholas B., Braicovich, Lucio, Fadley, Charles S. |
| المصدر: | Phys. Rev. B 98, 235146 (2018) |
| سنة النشر: | 2018 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science, Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Superconductivity |
| الوصف: | 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) |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.98.235146 |
| URL الوصول: | http://arxiv.org/abs/1802.09743 |
| رقم الأكسشن: | edsarx.1802.09743 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.98.235146 |
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