Fizika nizkikh temperatur

Publication date: 1988-01-01
Volume: 14 Pages: 878 - 882
Publisher: B.Verkin Institute for Low Temperature Physics and Engineering

Author:

ZUBOV, IV
DITYATIEV, AA ; NOVAKOVA, AA ; ILYUSHIN, AS ; KUZMIN, RN ; Moshchalkov, Victor

Keywords:

Science & Technology, Physical Sciences, Physics, Applied, Physics, 0105 Mathematical Physics, 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics, 0204 Condensed Matter Physics, General Physics, 5102 Atomic, molecular and optical physics, 5104 Condensed matter physics

Abstract:

Anomalies of thermal expansion of high-Hcsuperconductors YBa2Cu3O7-δalong the axis c are revealed in the region of superconducting transition. These are observed to be accompanied with a decrease in the integral intensity of diffraction lines. The data suggest the possibility of transformation of the phonon spectrum of YBa2Cu3O7-δin the region of the superconducting transition.