| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Wang, Zhenyu
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Topics
Publications (8/8 displayed)
- 2024Ostwald Ripening of Ag<sub>2</sub>Te Precipitates in Thermoelectric PbTe: Effects of Crystallography, Dislocations, and Interatomic Bondingcitations
- 2024Ostwald Ripening of Ag2Te precipitates in thermoelectric PbTe: effects of crystallography, dislocations, and interatomic bondingcitations
- 2023Substitutional p-Type Doping in NbS2 -MoS2 Lateral Heterostructures Grown by MOCVDcitations
- 2021Super-resolved optical mapping of reactive sulfur-vacancy in 2D transition metal dichalcogenidescitations
- 2017Quasiparticle interference and strong electron-mode coupling in the quasi-one-dimensional bands of Sr<SUB>2</SUB>RuO<SUB>4</SUB>citations
- 2012A novel detection platform for parallel monitoring of DNA hybridization with high sensitivity and specificity
- 2012A novel detection platform for parallel monitoring of DNA hybridization with high sensitivity and specificity
- 2006Dielectrophoresis microsystem with integrated flow cytometers for on-line monitoring of sorting efficiencycitations
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article
Quasiparticle interference and strong electron-mode coupling in the quasi-one-dimensional bands of Sr<SUB>2</SUB>RuO<SUB>4</SUB>
Abstract
The single-layered ruthenate Sr<SUB>2</SUB>RuO<SUB>4</SUB> is presented as a potential spin-triplet superconductor with an order parameter that may break time-reversal invariance and host half-quantized vortices with Majorana zero modes. Although the actual nature of the superconducting state is still a matter of controversy, it is believed to condense from a metallic state that is well described by a conventional Fermi liquid. In this work we use a combination of Fourier transform scanning tunnelling spectroscopy (FT-STS) and momentum-resolved electron energy loss spectroscopy (M-EELS) to probe interaction effects in the normal state of Sr<SUB>2</SUB>RuO<SUB>4</SUB>. Our high-resolution FT-STS data show signatures of the β-band with a distinctly quasi-one-dimensional (1D) character. The band dispersion reveals surprisingly strong interaction effects that dramatically renormalize the Fermi velocity, suggesting that the normal state of Sr<SUB>2</SUB>RuO<SUB>4</SUB> is that of a `correlated metal' where correlations are strengthened by the quasi-1D nature of the bands. In addition, kinks at energies of approximately 10 meV, 38 meV and 70 meV are observed. By comparing STM and M-EELS data we show that the two higher energy features arise from coupling with collective modes. The strong correlation effects and the kinks in the quasi-1D bands could provide important information for understanding the superconducting state.