Evolution of Dissipative Regimes in Atomically Thin Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8 + <i>x</i></sub> Superconductor
Abstract Thermoelectric transport is widely used to study Abrikosov vortex dynamics in unconventional superconductors. However, only a few thermoelectric studies have been conducted near the dimensional crossover that occurs when the vortex‐vortex interaction length scale becomes comparable to the sample size. Here, the effects of finite size on the dissipation mechanisms of the Nernst effect in the optimally doped Bi 2 Sr 2 CaCu 2 O 8 + x high‐temperature superconductor are reported, down to the atomic length limit. To access this regime, a new generation of thermoelectric chips based on silicon nitride microprinted circuit boards is developed. These chips ensure optimized signals while preventing sample deterioration. The results demonstrate that lateral confinement at the nanoscale can effectively reduce vortex dissipation. Investigating vortex dissipation at the micro‐ and nano‐scale is essential for creating stable, miniaturized superconducting circuits.
Authors
- Kornelius Nielsch (ORCID: https://orcid.org/0000-0003-2271-7726)
- Genda Gu (ORCID: https://orcid.org/0000-0002-9886-3255)
- Yejin Lee (ORCID: https://orcid.org/0000-0003-0397-0718)
- Nicola Poccia (ORCID: https://orcid.org/0000-0001-7982-0113)
- Federico Caglieris (ORCID: https://orcid.org/0000-0002-9054-580X)
- Sanaz Shokri (ORCID: https://orcid.org/0009-0009-8241-8331)
- Tommaso Confalone (ORCID: https://orcid.org/0009-0008-7453-6007)
- Mickey Martini
- I. Pallecchi (ORCID: https://orcid.org/0000-0001-6819-6124)
- Christian N. Saggau (ORCID: https://orcid.org/0000-0002-1289-2822)
- Michele Ceccardi (ORCID: https://orcid.org/0000-0001-7977-7215)
- V. M. Vinokur (ORCID: https://orcid.org/0000-0002-0977-3515)
Institutions
- Brookhaven National Laboratory (US)
- Leibniz Institute for Solid State and Materials Research (DE)
- Superconducting and other Innovative Materials and Devices Institute (IT)
- Max Planck Institute for Chemical Physics of Solids (DE)
- Swabian Instruments (Germany) (DE)
- Terra Quantum (Switzerland) (CH)
- University of Naples Federico II (IT)
- Technische Universität Dresden (DE)
- University of Genoa (IT)
- Technical University of Denmark (DK)
Publication Details
- Journal
- Advanced Electronic Materials
- Published
- 2024-11-24
- DOI
- https://doi.org/10.1002/aelm.202400496
- Citations
- 6
- Primary Topic
- Physics of Superconductivity and Magnetism
- Type
- article
- Field-Weighted Citation Impact
- 1.87
Funders
- U.S. Department of Energy
- European Commission
- Deutsche Forschungsgemeinschaft
- European Research Council
- Basic Energy Sciences