Cavity-altered superconductivity.

ABSTRACT: Is it feasible to alter the ground-state properties of a material by engineering its electromagnetic environment? Inspired by theoretical predictions^1-12, experimental realizations of such cavity-controlled properties without optical excitation are beginning to emerge^13-19. Here we devised and implemented a new platform to realize cavity-altered materials. Single crystals of hyperbolic van der Waals (vdW) compounds provide a resonant electromagnetic environment with enhanced density of photonic states and prominent mode confinement^20-24. We interfaced hexagonal boron nitride (hBN) with the molecular superconductor κ-(BEDT-TTF)₂Cu[N(CN)₂]Br (κ-ET). The frequencies of infrared hyperbolic modes (HMs) of hBN (refs. ^25,26) match

SUBMITTER: Keren I 

PROVIDER: S-EPMC12935536 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature