2000/09/16 by Valery P. Kisel, Kisel, Valery P., Adkham A. Paiziev +4
Engineering · Physics and Astronomy · #FOS: Physical sciences #Metallurgy and Material Forming #Superconducting Materials and Applications #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/0009246
12 pages
arxiv created 2000/09/16 · openalex publication_date 2000/09/16 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The remarkable finding of this work is the linear correlation between the critical temperature of superconducting (SC) transition, Tc, and the room-temperature half-width of angular correlation of positron annihila- tion phonons (ACPAP), Go/2, in the series of powder samples of high-Tc YBCO(123) ceramic superconductors (SCs) with various deficiency of oxygen content. This correlation points to the existence of fundamental physical parameter of materials in all-temperature range,which is the crucial one for their insulator-metal-superconductor (IMSC) transition. We attribute this key-parameter to the rapid increase and then the steady (due to the minimal mechanical relaxation rate) lattice compressive deformation - the sudden and stable jump in work-hardening of crystals). The traces of this compression may be observed by different methods over a wide range of te- mperatures and used for the forecast of the parameters of technological interest for the new SCs.