Lattice-charge stripes and spectral weight near the fermi surface

Journal Article · Wed Sep 01 04:00:00 EDT 1999 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.59614· OSTI ID:21208277

Bianconi, A; Saini, N L; Lanzara, A ^[1]

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1. Unita INFM and Dipartimento di Fisica, Universita di Roma 'La Sapienza' P. A. Moro 2, 00185 Roma (Italy)

Investigations of short range lattice fluctuations and anharmonic lattice modulation of the CuO{sub 2} plane, in the Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} superconductors, with high momentum resolution extended x-ray fine structure (EXAFS) and x-ray diffraction (XRD), show the coexistence of the polaronic and itinerant charges ordered in lattice-charge stripes with the wavevector q{sub lattice} and a strong second harmonic content with 2q{sub lattice}. The study of momentum distribution of spectral weight around the Fermi level, measured by angle resolved photoemission (ARPES), reveals a large suppression of spectral weight due to coupling of charge carriers with joint incommensurate charge density wave at q(-0.4{pi},0.4{pi})-2q{sub lattice} in the diagonal direction and the spin density wave at G ({pi}, {pi}) in the direction of the stripes. The lattice-charge stripes and their implication on the electronic spectral weight are briefly discussed.

• OSTI ID: 21208277
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 483; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTROSCOPY
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHARGE CARRIERS
CHARGE DENSITY
COUPLING
CUPRATES
FERMI LEVEL
FINE STRUCTURE
FLUCTUATIONS
HIGH-TC SUPERCONDUCTORS
LATTICE PARAMETERS
PHOTOEMISSION
POLARONS
SPIN
STRONTIUM COMPOUNDS
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY