Superfluid inhomogeneity and microwave absorption in a model for thin high-Tc superconducting films

2002/07/26 by Sergey V. Barabash, S. V. Barabash, D. Stroud +1 · 2 citations
Physics and Astronomy · #Absorption (acoustics) #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Materials science #Microwave #Optics #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Quantum, superfluid, helium dynamics #Superconductivity #Superfluidity #cond-mat.dis-nn #cond-mat.supr-con

paper · pdf · doi:10.1016/j.physb.2003.08.028

published in Physica B Condensed Matter 338(1-4), 224-227 (Elsevier BV) · Presented at ETOPIM-6; latex file requires espcrc2.sty

arxiv created 2002/07/26 · openalex publication_date 2003/10/01 · arxiv updated 2015/06/24 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We investigate the microwave absorption arising from inhomogeneity in the superfluid density of a model high-T_c superconductor. Such inhomogeneities may arise from a wide variety of sources, including quenched random disorder and static charge density waves such as stripes. We show that both mechanisms will inevitably produce additional absorption at finite frequencies. We present simple model calculations for this extra absorption, and discuss applications to other transport properties in high-T_c materials. Finally, we discuss the connection of these predictions to recent measurements by Corson et al. of absorption by the high-temperature superconductor BSCCO in the THz frequency regime.

Citations

• Dimensional crossover in quasi-one-dimensional and high-Tcsuperconductors
• Berechnung verschiedener physikalischer Konstanten von heterogenen Substanzen. I. Dielektrizitätskonstanten und Leitfähigkeiten der Mischkörper aus isotropen Substanzen
• Models for enhanced absorption in inhomogeneous superconductors