Article

The role of optical phonons in high-temperature superconductivity

B. I. VerkinPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, KharkovV. M. DmitrievPhysicotechnical Institute of Low Temperatures, Academy of Sciences of the Ukrainian SSR, Kharkov

Soviet Journal of Low Temperature Physicsjournal1987en

ABI

Abstract

We have studied the absorption spectra of the high-temperature superconductors Y(La)Ba(Sr)CuO in the frequency range from 400 to 3600 cm−1 and compared their superconducting properties. In the lanthanum compounds the superconducting mechanism is closely tied to phonons whose energies are approximately 64 meV. In yttrium compounds 140 meV optical phonons are important.

Topics

Physics of Superconductivity and Magnetism Superconductivity in MgB2 and Alloys Magnetic and transport properties of perovskites and related materials

Identifiers

DOI: 10.1063/10.0031761

Citations and references

Cited by 03 references

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