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The effects of intramolecular vibrations in point-contact spectra of organic superconductor <i>β</i>-(BEDT–TTF)2I3

Г. В. КамарчукPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1Konstantin PokhodnyaInstitute of Semiconductors, Academy of Sciences of the Ukrainian SSR, Kiev 2A. V. KhotkevichPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1I. K. YansonPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov 1

Soviet Journal of Low Temperature Physicsjournal1990en

ABI

Annotatsiya

Point heterocontacts between a quasi-two-dimensional organic superconductor β-(BEDT–TTF)2I3 and a noble metal (copper, silver) are investigated, and current–voltage characteristics and their second derivatives are measured. The peak observed in the normal state on the second derivatives of current–voltage characteristics in the region of 50 meV is due to the interaction of charge carriers with intramolecular vibrations of BEDT–TTF (donor) in the organic metal. A transition to heterojunctions with a superconducting inclusion is observed at T = 4.2 K with increasing confining force between the electrodes. The values of the energy gap for the organic superconductor and the excess current of the heterojunctions are calculated.

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Mavzular

Organic and Molecular Conductors Research Magnetism in coordination complexes Organometallic Compounds Synthesis and Characterization

Identifikatorlar

DOI: 10.1063/10.0032632

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