| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 9841761 | Physica C: Superconductivity and its Applications | 2005 | 5 Pages |
Abstract
In order to directly examine the impact of phonons in electronic structure, angle-resolved photoemission spectroscopy (ARPES) measurements have been performed on optimally doped Bi2Sr2CaCu2Oy (Tc â¼Â 92 K) upon oxygen isotope substitution. The obtained ARPES data show clear and giant changes induced by 16O â 18O exchange, which are found to be strongly energy, momentum dependent and effective only at low temperatures (T < Tc). This direct observation of unconventional electron-phonon interactions should urge reconsideration of the role of phonons in high-Tc materials.
Related Topics
Physical Sciences and Engineering
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Condensed Matter Physics
Authors
T. Sasagawa, A. Lanzara, G.-H. Gweon, S. Zhou, J. Graf, Suryadijaya Suryadijaya, H. Takagi,