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MA: Fachverband Magnetismus

MA 26: Focus Session: Nickelate Superconductivity: Insights into Unconventional Pairing and Correlation Effects I (joint session TT/DS/MA)

Mittwoch, 11. März 2026, 09:30–12:45, HSZ/0003

Nickel, a direct neighbor of copper in the periodic table, has been considered a promising candidate for high-temperature superconductivity since the early 1990s. After more than three decades of research, this prediction was confirmed with the discovery of superconductivity in nickelates, marking the beginning of the ”nickel age” of superconductivity. Recent advances include Sm-based infinite-layer nickelates with transition temperatures approaching 40 K, as well as bilayer nickelates exhibiting superconductivity above 90 K under pressure and up to 60 K under compressive epitaxial strain. These results highlight the crucial roles of structural engineering, epitaxial strain, and precise synthesis control, and they open new frontiers for both fundamental understanding and materials design. This focus session aims to define key scientific challenges ahead, strengthen collaboration within Germany and Europe, and accelerate progress toward higher superconducting transition temperatures.

Coordinators: Marta Gibert (TU Wien), Mattias Hepting (MPI FKF Stuttgart), Ilya M. Eremin (Ruhr-University Bochum)

	09:30	MA 26.1	Topical Talk: Unconventional Superconductivity in Infinite-layer Samarium Nickelates — •Danfeng Li
	10:00	MA 26.2	Topical Talk: Recent insights into infinite-layer nickelate heterostructures from x-ray spectroscopy — •Eva Benckiser
	10:30	MA 26.3	Topical Talk: Theory of infinite-layer nickelate superconductors — •Karsten Held
	11:00		15 min. break
	11:15	MA 26.4	Topical Talk: Disorder and distortions: what electrons tell us about nickelate superconductivity — •Berit H. Goodge
	11:45	MA 26.5	Topical Talk: Superconducting gap structure and bosonic mode in La2PrNi2O7 thin films at ambient pressure — •Hai-Hu Wen
	12:15	MA 26.6	Investigation of Ruddlesden-Popper nickelates and the monolayer-trilayer polymorph using Raman spectroscopy — •Vignesh Sundaramurthy, Abhi Suthar, Pascal Puphal, Hasan Yilmaz, Masahiko Isobe, Matteo Minola, Bernhard Keimer, and Matthias Hepting
	12:30	MA 26.7	Multiorbital density wave in the trilayer nickelate La4Ni3O10 — Abhi Suthar, Vignesh Sundaramurthy, Matias Bejas, Congcong Le, Pascal Puphal, Pablo Sosa-Lizama, Masahiko Isobe, Peter A. van Aken, Y. Eren Suyolcu, Matteo Minola, Andreas P. Schnyder, Xianxin Wu, Bernhard Keimer, Giniyat Khaliullin, Andres Greco, and •Matthias Hepting