%0 Journal Article %J High Pressure Research %D 2002 %T Pressure effects in the Raman spectra of La2-xSrxCuO4 %A Lampakis, D. %A Liarokapis, E. %A Lykodimos, V. %A Panagopoulos, C %X Micro-Raman measurements under hydrostatic pressures up to 6GPa have been carried out on high-quality La2-xSrxCuO4 polycrystalline compounds with Sr concentration up to x=0.45. The zz scattering polarization has been investigated, where two strong modes due to La/Sr and the apex oxygen, and (in the low Sr concentrations) the soft mode at ≃100cm-1 are observed. The frequency of the strong modes increases almost linearly with pressure for the Sr concentrations studied. Modifications in the increment rate dω/dp and the phonon width have been detected depending on the amount of doping. For x=0.45 a considerable increase in the width of both strong phonons with pressure was found, which must reflect a separation into phases, since this concentration is close to the solubility limit. The relative intensity of the strong phonons was investigated in connection with its correlation to the transition temperature. %B High Pressure Research %V 22 %P 83-87 %G eng %U https://www.scopus.com/inward/record.uri?eid=2-s2.0-0346110748&doi=10.1080%2f08957950211368&partnerID=40&md5=f2b69d3d89a6551c42422a5469cdea0a %R 10.1080/08957950211368