Graphite superconductor and use thereof

US12232428B2 · kind B2 · utility

Assignee

• Bernd Burchard · DE

Inventors

• Bernd Burchard · Dortmund, DE
• Pablo D. Esquinazi · Leipzig, DE
• Jan Meijer · Bochum, DE

Key dates

• Filing date: Apr 6, 2018
• Grant date: Feb 18, 2025
• Expiry date: Sep 7, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/90
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A device includes a substrate including a first layer and a second layer. The first and second layers are positioned adjacent to each other and comprise a common boundary region extending from the first layer to the second layer. The first layer comprises graphite with a Bernal-crystal structure. The second layer comprises graphite with a rhombohedral crystal structure. The boundary region includes a border region having superconducting properties, namely; at a current density of 0 Ampere/m2 and a magnetic flux density of 0 Tesla exhibiting a critical temperature (Tc) which is higher than −195° C., and/or at a temperature below the critical temperature (Tc) and a current density of 0 Ampere/m2, exhibiting a critical magnetic flux density (Bk) that is higher than 1 Tesla. The border region is coupled to an electric and/or a magnetic and/or an electromagnetic signal with a frequency greater than or equal to 0 Hertz.