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DS: Fachverband Dünne Schichten
DS 17: Focus Session: High-Temperature Superconductivity in Hydride Materials at High Pressures (joint session TT/DS)
Donnerstag, 12. März 2026, 15:00–18:45, HSZ/0003
Superconductors with record transition temperatures up to 250 K have been discovered and confirmed in hydride materials at high pressures over the last decade, enabled by major advances in both computational and experimental approaches. Density functional theory, combined with structure search algorithms and machine learning methods, enables high-throughput predictions of novel high-pressure phases. Ab initio microscopic theories, including Eliashberg theory and superconducting density functional theory, successfully predict transition temperatures of identified phases, with several predictions now confirmed experimentally. The synthesis of novel hydrides has revealed the importance of including hydrogen quantum fluctuations in theoretical predictions. Experimentally, advances in high-pressure synthesis techniques have enabled the preparation of novel hydride phases, while electrical transport measurements, tunneling spectroscopy, and magnetic studies have established a strong body of evidence for superconductivity by probing zero resistance, the superconducting gap, and magnetic response. This focus session will emphasize these breakthroughs, highlight ongoing challenges in both experiment and computation, and provide an outlook for finding high-temperature superconductors at lower and ambient pressures.
Coordinators: Philipp Gegenwart (Universität Augsburg), Matthias Vojta (TU Dresden)
