Min Yang, Jeremy Schaub, et al.
Technical Digest-International Electron Devices Meeting
Paper
Reflectivity and conductivity of YBa2Cu3O7
Abstract
We obtain the a-b plane infrared conductivity of YBa2Cu3O7 from temperature-dependent reflectivity spectra of crystals and films with Tc92 K. The normal state is characterized by a free-carrier band with an enhanced low-frequency mass and a frequency-dependent scattering rate, which indicate coupling to an excitation spectrum with a characteristic frequency scale of c700 cm-1 and coupling strength of 2 to 3. © 1989 The American Physical Society.
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