RT Dissertation/Thesis T1 Doped high-temperature and quasi-2D few-layer superconductors: Some theoretical and experimental studies of their fluctuation precursor state and application to the design of optimized photonic superconducting detectors A1 Martínez Botana, José Martín K1 high-temperature superconductors K1 thermal fluctuations K1 bolometer K1 piezoelectric K1 vortex AB This doctoral thesis addresses the study of precursor states of superconductivity in materials of interest, with special attention to very thin-film superconductors and doped cuprate materials. Through a combination of theoretical modeling, numerical simulations, and experimental work, we explored the effects of thermal fluctuations in different configurations of superconducting materials. The fundamental objective is to understand how the precursor state of superconductivity manifests itself, as well as its relevance in technological applications, especially in bolometric detectors based on high critical temperature superconductors. YR 2025 FD 2025 LK https://hdl.handle.net/10347/43102 UL https://hdl.handle.net/10347/43102 LA eng DS Minerva RD 3 may 2026