2010/11/24 by Kris Van Houcke, K. Van Houcke, Van Houcke, K. +7
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Nuclear Theory (nucl-th) #Physics of Superconductivity and Magnetism #Superconductivity (cond-mat.supr-con) #Theoretical and Computational Physics #cond-mat.mes-hall #cond-mat.supr-con #nucl-th
paper · pdf · doi:10.48550/arxiv.1011.5421
9 pages, 9 figures
arxiv created 2010/11/24 · openalex publication_date 2010/11/24 · arxiv updated 2010/11/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study the thermodynamic properties of a small superconducting metallic grain using a quantum Monte Carlo method. The grain is described by the universal Hamiltonian, containing pairing and ferromagnetic exchange correlations. In particular, we study how the thermodynamic signatures of pairing correlations are affected by the spin exchange interaction. We find the exchange interaction effects to be qualitatively different in the BCS and fluctuation-dominated regimes of pairing correlations.