Features of superconducting transition in nanocomposite consisting of "insulating matrix (porous alkali-borosilicate glass)" - "granular metallic filler (indium)"
作者： ON Ivanov , AV Fokin , Yu A Kumzerov , AA Naberezhnov , None
DOI: 10.1016/J.CJPH.2020.07.003
关键词: Indium 、 Electrical resistance and conductance 、 Borosilicate glass 、 Nanocomposite 、 Superconductivity 、 Condensed matter physics 、 Materials science 、 Conductivity 、 Quantum tunnelling 、 Electrical resistivity and conductivity
摘要: Abstract Patterns in temperature and magnetic field behavior of the electrical resistance nanocomposite consisting “insulating matrix (7 nm-pore alkali-borosilicate glass)” – “granular metallic filler (indium)” (PG7+In) has been found analyzed vicinity superconducting transition. Insulating resistivity observed a normal state. External shifts transition to lower temperatures same time gradually strengths insulating behaviour above Hopping conductivity mechanism developed for granular conductor systems can be responsible normal-state resistance. Electron hopping system is realized as tunneling electrons through intergranular contacts between granules. The rather broad. Broadening attributed fluctuation conductivity. Above transition, Aslamazov-Larkin contribution characteristic three-dimensional main correction
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