Beyond BCS: Understanding the Complexity of High-Tc Superconductivity

Kyle Hatch
Dr. Tim Wiser, Faculty Mentor

Superconductivity remains an area of research in condensed matter physics. The Bardeen-Cooper-Schrieffer (BCS) theory describes conventional superconductors via electron-phonon interactions but fails to describe all high-temperature superconductors (HTS). This presentation reviews the history of superconductivity, the foundations of BCS theory, and the development of HTS, with a focus on recent discoveries like hydrogen sulfide (H?S) superconductivity under extreme pressure. Despite extensive study, no unified theory explains all superconductors. Ongoing research explores alternative pairing mechanisms, competing orders, and quantum criticality in correlated electron systems. The role of spin fluctuations, charge density waves, and multi-orbital effects in unconventional superconductors remains a challenge. Understanding these mechanisms is crucial for developing new superconducting materials and refining theoretical models that extend beyond BCS.

Keywords: Superconductivity, BCS, high-temperature, HTS

Topic(s):Physics
Chemistry

Presentation Type: Oral Presentation

Session: TBA
Location: TBA
Time: TBA