Ke Chen

Ke Chen is a Research Professor in the Physics Department at Temple University. His research focuses on electron tunneling phenomena, superconductivity, and advanced superconducting devices. He specializes in fabricating and studying tunnel junctions involving superconductors like MgB₂ and exploring their applications in electronics and quantum devices. Key areas of investigation include the physics of two-band superconductivity in MgB₂, Josephson junctions for high-speed circuits, and graphene-based sensors for chemical detection.

His work involves experimental studies of superconducting materials' properties using tunneling spectroscopy, and he has pioneered techniques such as sandwich-type MgB₂/TiB₂/MgB₂ Josephson junctions. He also develops superconducting quantum interference devices (SQUIDs) and explores applications in high-frequency electronics and magnetic field sensing. Collaborations include advancements in MgB₂ thin films for superconducting radiofrequency cavities and graphene tunnel junctions for chemical sensing.

Notable contributions include revealing momentum-dependent energy gaps in MgB₂ through tunneling experiments and demonstrating MgB₂-based devices operating at elevated temperatures. His research bridges fundamental condensed matter physics with applied technologies, addressing challenges in superconducting electronics and material innovation.