Dresden 2026 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 12: Focus Session: Tunable Correlations in van der Waals Quantum Materials I (joint session TT/DS/HL)
TT 12.7: Vortrag
Montag, 9. März 2026, 18:00–18:15, HSZ/0003
Enhancing Plasmonic Superconductivity in Layered Materials via Dynamical Coulomb Engineering — •Yann in ’t Veld1, Mikhail I. Katsnelson2,3, Andrew J. Millis4,5, and Malte Rösner2,6 — 1I. Institute of Theoretical Physics, Universität Hamburg, Hamburg, Germany — 2Institute for Molecules and Materials, Radboud University, Nijmegen, the Netherlands — 3Constructor Knowledge Institute, Constructor University, Bremen, Germany — 4Center for Computational Quantum Physics, Flatiron Institute, New York, United States of America — 5Department of Physics, Columbia University, New York, United States of America — 6Faculty of Physics, Bielefeld University, Bielefeld, Germany
Conventional Coulomb engineering, through controlled manipulation of the environment, offers an effective route to tune the correlation properties of atomically thin van der Waals materials via static screening. Here we present tunable dynamical screening as a method for precisely tailoring bosonic modes to optimize many-body properties. We show that “bosonic engineering” of plasmon modes can be used to enhance plasmon-induced superconducting critical temperatures of layered superconductors in metallic environments by up to an order of magnitude, due to the formation of interlayer hybridized plasmon modes with enhanced superconducting pairing strength. We determine optimal properties of the screening environment to maximize critical temperatures. We show how bosonic engineering can aid the search for experimental verification of plasmon mediated superconductivity.
Keywords: Unconventional Superconductivity; Plasmons; van-der-Waals materials; Eliashberg theory; Coulomb Engineering