Phonon role in superconductivity of La(2-x)Sr(x)CuO(4) studied by inelastic x-ray scattering
Tatsuo Fukuda, Jun'ichiro Mizuki (JAERI, SPring-8), Kazuhiko Ikeuchi,, Masaki Fujita, Kazuyoshi Yamada (ICR, Kyoto), Alfred Q. R. Baron, Satoshi, Tsutsui (JASRI, SPring-8), Yoshikazu Tanaka (RIKEN, SPring-8), Yasuo Endoh, (IMR, Tohoku)
TL;DR
This study investigates how phonons influence superconductivity in La(2-x)Sr(x)CuO(4) using inelastic x-ray scattering, focusing on phonon behavior across different doping levels.
Contribution
The paper provides detailed analysis of phonon behavior in LSCO and its relation to superconductivity, with new insights into phonon anomalies at specific doping levels.
Findings
Observed phonon anomalies near optimal doping
Identified doping-dependent changes in LO phonon branch
Highlighted potential spurious signals at x=0.29
Abstract
This paper has been withdrawn by the authors, because we had probably observed some spurious intensity with x=0.29 sample (Fig.3(b)). This came out after further studies of the detailed x-dependence of the highest energy LO phonon branch in LSCO.
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Taxonomy
TopicsPhysics of Superconductivity and Magnetism · Advanced Condensed Matter Physics · Magnetic and transport properties of perovskites and related materials