Maqola

Physical properties of thermally oxide-coated copper ribbons doped with Sm(Y) and Ba: quest for room-temperature superconductivity

B. I. VerkinPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1V. V. EremenkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1A. B. BeznosovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1С. И. БондаренкоPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1V. HaikoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1A. I. GaluzaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1O. HudákInstitute of Experimental Physics, Slovak Academy of Sciences, Kosice, Czechoslovakia 2A. M. GurevichPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1V. N. EropkinPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1A. ZentkoInstitute of Experimental Physics, Slovak Academy of Sciences, Kosice, Czechoslovakia 2A. P. IsakinaPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1Štefan MolokáčInstitute of Experimental Physics, Slovak Academy of Sciences, Kosice, Czechoslovakia 2Yu. A. PokhilPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1A. I. ProkhvatilovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1M. SemanInstitute of Experimental Physics, Slovak Academy of Sciences, Kosice, Czechoslovakia 2V. V. SergienkoPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1M. TimkoInstitute of Experimental Physics, Slovak Academy of Sciences, Kosice, Czechoslovakia 2В. А. УшаковPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1G. E. ChurilovPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1

Soviet Journal of Low Temperature Physicsjournal1988en

ABI

Annotatsiya

Experimental studies have been carried out to determine the structure, microstructure, optical reflection between 1 and 6.2 eV, heat capacity, magnetic susceptibility, and electric conductivity of quick-quenched thermally oxide-coated copper ribbons doped with Sm(Y) and Ba. The oxide layer of the ribbons, which is of multiphase type and contains characteristic HTS (high temperature superconductor) structures as well as normal oxides, is found to possess a granular microcrystalline structure. Optical measurements show that monovalent copper layer dominates in the oxide layer. The rate of oxygen exchange with the gaseous medium is found to increase at certain temperatures between 250 and 325 K. The observed experimental data indicate that for currents of 7·10−5 A and at room temperatures, some samples reveal the existence of regions with an anomalously low resistance forming a highly unstable “Josephson medium.”

Hali tarjima qilinmagan

Mavzular

Physics of Superconductivity and Magnetism Copper Interconnects and Reliability Magnetic and transport properties of perovskites and related materials

Identifikatorlar

DOI: 10.1063/10.0031969

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