Electronic Spectra and Their Relation to the ({pi},thinsp{pi} ) Collective Mode in High-T{sub c} Superconductors

Journal Article · Mon Nov 01 04:00:00 EST 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.83.3709· OSTI ID:692562

Campuzano, J C; Fretwell, H M; Kaminski, A ^[1]; Campuzano, J C; Norman, M R; Mesot, J; Guptasarma, P; Hinks, D G ^[2]; Ding, H ^[3]; Randeria, M ^[4]; Takeuchi, T ^[5]; Sato, T; Yokoya, T; Takahashi, T ^[6]; Mochiku, T ^[7]; Kadowaki, K ^[8]; Konstantinovic, Z; Li, Z Z; Raffy, H ^[9]

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

The photoemission line shape near ({pi},thinsp0) in Bi{sub 2}Sr {sub 2}CaCu{sub 2}O{sub 8+{delta}} below T{sub 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{sub 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 ({pi},thinsp{pi}) . The inferred mode energy and its doping dependence agree well with a magnetic resonance observed by neutron scattering. {copyright} {ital 1999} {ital The American Physical Society }

• OSTI ID: 692562
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 18 Vol. 83; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BISMUTH COMPOUNDS
BISMUTH OXIDES
BRILLOUIN ZONES
CALCIUM COMPOUNDS
CALCIUM OXIDES
COLLECTIVE EXCITATIONS
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL DOPING
ELECTRONIC STRUCTURE
ENERGY GAP
HIGH-TC SUPERCONDUCTORS
LINE WIDTHS
PHOTOEMISSION
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TEMPERATURE DEPENDENCE