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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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Aarts, Jan
Leiden University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2024Fabrication and properties of lateral Josephson junctions with a RuO<sub>2</sub> weak linkcitations
- 2021Imaging Spin-Wave Damping Underneath Metals Using Electron Spins in Diamondcitations
- 2019Controlling the interfacial conductance in <tex>$LaAlO_{3}/SrTiO_{3}$</tex> in 90 degrees off-axis sputter depositioncitations
- 2013Andreev spectroscopy of CrO 2 thin films on TiO 2 and Al 2 O 3citations
Places of action
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article
Fabrication and properties of lateral Josephson junctions with a RuO<sub>2</sub> weak link
Abstract
<jats:title>Abstract</jats:title><jats:p>Ruthenium dioxide (RuO<jats:sub>2</jats:sub>) is a metallic rutile oxide with a number of interesting properties. For a long time, it was considered to be a highly conductive normal metal and a Pauli paramagnet. Recently, it was found that the material is antiferromagnetic, with small magnetic moments of the order of 0.05 Bohr magneton and an ordering temperature above 300 K. The presence of magnetic moments should have clear consequences when trying to induce superconductivity in RuO<jats:sub>2</jats:sub>. We used a selective area chemical vapor deposition method to grow nanostrips of RuO<jats:sub>2</jats:sub> on TiO<jats:sub>2</jats:sub> substrates. On these nanostrips, superconducting contacts were made of MoGe, and a weak link was fabricated with a Focused Ion Beam. We find that the device behaves as a Josephson junction, including a Fraunhofer-like response to a magnetic field, for distances between the contacts below 70 nm. We estimate the induced singlet coherence length <jats:italic>ξ</jats:italic> to be about 12 nm, which seems a reasonable number when small magnetic moments are present.</jats:p>