About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Printed Electronics and Additive Manufacturing of Advanced Functional Materials and Devices—From Processing Concepts to Applications
|
| Presentation Title |
High-temperature superconductivity in direct-laser-written patterned B-doped Q-carbon structures |
| Author(s) |
Sumeer Khanna, Kishan Kumawat, Jagdish Narayan |
| On-Site Speaker (Planned) |
Sumeer Khanna |
| Abstract Scope |
Here, we report B-doping in amorphous quenched carbon (Q-carbon) and crystalline nanodiamond, which show high-temperature superconductivity. We started by fabricating patterned structures in photo polymeric resin containing boron atoms, which was prepared by mixing Boric acid (H3BO3) powder with resin. The patterned B-doped structures were carbonized at high temperatures of ~900 deg. C to form amorphous carbon phase and subsequently treated by nanosecond laser melting and rapid quenching. Magnetic susceptibility measurements are performed to characterize superconductivity properties, shown typical to characteristic type-II Bardeen−Cooper−Schrieffer behavior. Furthermore, it is hypothesized that the close packing of carbon atoms provides with higher density of states at the Fermi level, which leads to stronger electron-phonon coupling. This is attributed to highly non-equilibrium and rapid quenching from liquid carbon containing metallic boron atoms. The proposed applications for B-doped Q-carbon structures would be in areas of quantum communications through magnons, high sensitivity and magnetic resonance imaging. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Electronic Materials, Magnetic Materials, High-Temperature Materials |