Electronic spectra and their relation to the (pi, pi) collective mode in High-T{sub c} superconductors.

Journal Article · Mon Nov 01 04:00:00 EST 1999 · Phys. Rev. Lett.

DOI:https://doi.org/10.1103/PhysRevLett.83.3709· OSTI ID:942789

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

The photoemission line shape near ({pi},0) 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},{pi}). The inferred mode energy and its doping dependence agree well with a magnetic resonance observed by neutron scattering.

• Research Organization: Argonne National Laboratory (ANL)
• Sponsoring Organization: SC; NSF; FOR
• DOE Contract Number: AC02-06CH11357
• OSTI ID: 942789
• Report Number(s): ANL/MSD/JA-34629
• Journal Information: Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 18 ; Nov. 1999 Vol. 83; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRONS
ENERGY
HIGH-TC SUPERCONDUCTORS
MAGNETIC RESONANCE
NEUTRONS
PHOTOEMISSION
SCATTERING
SPECTRA
VECTORS