Phase diagram of La2-xSrxCuO4 probed in the infrared: Imprints of charge stripe excitations

A. Lucarelli, S. Lupi, M. Ortolani, P. Calvani, P. Maselli, M. Capizzi, P. Giura, H. Eisaki, N. Kikugawa, T. Fujita, M. Fujita, K. Yamada

Research output: Contribution to journalArticlepeer-review

70 Citations (Scopus)


A study was conducted on an optical conductivity of nine LSCO samples spanning the insulating, superconducting, and metallic region of the phase diagram of this compound. It was observed that, at energies lower than those of any phonon mode, clear features which were stronger than both the phonons and the narrow, hardly detectable Drude term. Hence, such strong features were due to collective excitations of charged systems which extend on many cells.

Original languageEnglish
JournalPhysical Review Letters
Issue number3
Publication statusPublished - 2003 Jan 24
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Phase diagram of La<sub>2-x</sub>Sr<sub>x</sub>CuO<sub>4</sub> probed in the infrared: Imprints of charge stripe excitations'. Together they form a unique fingerprint.

Cite this