DataVXApplied Physics A: Materials Science & ProcessingPaper
journal article·2002-12-01

Lattice and charge effects in high-temperature superconductors

T. Egami, R.J. McQueeney, J.-H. Chung, M. Yethiraj, H.A. Mook, M. Arai, Y. Inamura, Y. Endoh, S. Tajima, C. Frost, F. Dogan

Applied Physics A: Materials Science & Processing· Volume 74· Issue 0
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Source abstract

Abstract

We present the results of inelastic neutron-scattering measurements of a twinned crystal of YBa2Cu3O6.95 using the MAPS spectrometer of the ISIS facility of the Rutherford–Appleton Laboratory as well as the HFIR of the Oak Ridge National Laboratory. The dispersion of the Cu–O bond-stretching modes indicates a strong dielectric anisotropy within the plane and associated electronic anisotropy, supporting the dynamic stripe model. The results suggest a possibility that phonons play a major role in the mechanism of high-temperature superconductivity.
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Research context

OpenAlex topics: Physics of Superconductivity and Magnetism · Magnetic properties of thin films · Inorganic Fluorides and Related Compounds

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