Details

Autor(en) / Beteiligte

• Iwasawa, H
• Douglas, J F
• Sato, K
• Masui, T
• Yoshida, Y
• Sun, Z
• Eisaki, H
• Bando, H
• Ino, A
• Arita, M
• Shimada, K
• Namatame, H
• Taniguchi, M
• Tajima, S
• Uchida, S
• Saitoh, T
• Dessau, D S
• Aiura, Y

Titel

Isotopic fingerprint of electron-phonon coupling in high-Tc cuprates

Ist Teil von

• Physical review letters, 2008-10, Vol.101 (15), p.157005-157005

Ort / Verlag

United States

Erscheinungsjahr

2008

Link zum Volltext

Quelle

American Physical Society [PROLA]

Beschreibungen/Notizen

• Angle-resolved photoemission spectroscopy with low-energy tunable photons along the nodal direction of oxygen isotope substituted Bi(2)Sr(2)CaCu(2)O(8+delta) reveals a distinct oxygen isotope shift near the electron-boson coupling "kink" in the electronic dispersion. The magnitude (a few meV) and direction of the kink shift are as expected due to the measured isotopic shift of phonon frequency, and are also in agreement with theoretical expectations. This demonstrates the participation of the phonons as dominant players, as well as pinpointing the most relevant of the phonon branches.