Electronic Spectra and Their Relation to the <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mo>(</mo><mi mathvariant="italic">π</mi><mo>,</mo><mi mathvariant="italic">π</mi><mo>)</mo></math></span> Collective Mode in High- <span class="aps-inline-formula"><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi>T</mi></mrow><mrow><mi>c</mi></mrow></msub></mrow></math></span> Superconductors

J. C. Campuzano; H. Ding; M. R. Norman; H. M. Fretwell; M. Randeria; A. Kaminski; J. Mesot; T. Takeuchi; T. Sato; T. Yokoya; T. Takahashi; T. Mochiku; K. Kadowaki; P. Guptasarma; D. G. Hinks; Z. Konstantinovic; Z. Z. Li; H. Raffy

doi:10.1103/PhysRevLett.83.3709

Electronic Spectra and Their Relation to the $(π, π)$ Collective Mode in High- $T_{c}$ Superconductors

J. C. Campuzano, H. Ding, M. R. Norman, H. M. Fretwell, M. Randeria, A. Kaminski, J. Mesot, T. Takeuchi, T. Sato, T. Yokoya, T. Takahashi, T. Mochiku, K. Kadowaki, P. Guptasarma, D. G. Hinks, Z. Konstantinovic, Z. Z. Li, and H. Raffy

Phys. Rev. Lett. 83, 3709 – Published 1 November 1999

Abstract

The photoemission line shape near $(π, 0)$ in ${Bi}_{2} {Sr}_{2} {CaCu}_{2} O_{8 + δ}$ below $T_{c}$ is characterized by a sharp peak, followed at higher energy by a dip and hump. We study the evolution of this line shape as a function of momentum, temperature, and doping. We find the hump scales with the peak and persists above $T_{c}$ in the pseudogap state. We present strong evidence that the peak-dip-hump structure arises from the interaction of electrons with a collective mode of wave vector $(π, π)$ . The inferred mode energy and its doping dependence agree well with a magnetic resonance observed by neutron scattering.

Received 22 June 1999

DOI:https://doi.org/10.1103/PhysRevLett.83.3709

Authors & Affiliations

J. C. Campuzano^1,2, H. Ding³, M. R. Norman², H. M. Fretwell¹, M. Randeria⁴, A. Kaminski¹, J. Mesot², T. Takeuchi⁵, T. Sato⁶, T. Yokoya⁶, T. Takahashi⁶, T. Mochiku⁷, K. Kadowaki⁸, P. Guptasarma², D. G. Hinks², Z. Konstantinovic⁹, Z. Z. Li⁹, and H. Raffy⁹

¹Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607
²Materials Sciences Division, Argonne National Laboratory, Argonne, Illinois 60439
³Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467
⁴Tata Institute of Fundamental Research, Mumbai 400005, India
⁵Department of Crystalline Materials Science, Nagoya University, Nagoya 464-01, Japan
⁶Department of Physics, Tohoku University, 980-8578 Sendai, Japan
⁷National Research Institute for Metals, Sengen, Tsukuba, Ibaraki 305, Japan
⁸Institute of Materials Science, University of Tsukuba, Ibaraki 305, Japan
⁹Laboratoire de Physique des Solides, Universite de Paris-Sud, 91405 Orsay Cedex, France