Oxygen-isotope shift of the charge-stripe ordering temperature in La2-xSrxCuO4 from x-ray absorption spectroscopy

Authors
Lanzara, A Zhao, GM Saini, NL Bianconi, A Conder, K Keller, H Muller, KA
Citation
A. Lanzara et al., Oxygen-isotope shift of the charge-stripe ordering temperature in La2-xSrxCuO4 from x-ray absorption spectroscopy, J PHYS-COND, 11(48), 1999, pp. L541-L546
Citations number
21
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF PHYSICS-CONDENSED MATTER
ISSN journal
09538984 → ACNP
Volume
11
Issue
48
Year of publication
1999
Pages
L541 - L546
Database
ISI
SICI code
0953-8984(199912)11:48<L541:OSOTCO>2.0.ZU;2-T
Abstract
A very large oxygen-isotope shift of the charge-stripe ordering temperature in the high-temperature superconductors La2-xSrxCuO4 has been observed usi ng x-ray absorption spectroscopy, a fast (similar to 10(-15) seconds) and l ocal probe (similar to 5 Angstrom). Upon replacing O-16 with O-18, the char ge-stripe ordering temperature in La1.94Sr0.06CuO4 increases from about 110 K to 180 K. The present results provide compelling evidence for a strong e lectron-phonon interaction in this compound, and thus place important const raints on the microscopic origin of the stripe formation.