Unusual oxygen isotope effects in cuprates -- importance of doping

Simple item page
dc.creatorGweon, G. -H.
dc.creatorSasagawa, T.
dc.creatorTakagi, H.
dc.creatorLee, D. -H.
dc.creatorLanzara, A.
dc.date2007-08-07
dc.date.accessioned2026-07-07T08:22:44Z
dc.date.available2026-07-07T08:22:44Z
dc.descriptionA recent angle resolved photoelectron spectroscopy (ARPES) study by Douglas et al. \cite {dessau-comment} on oxygen isotope exchanged Bi_2Sr_2CaCu_2O$_{8+δ}$ superconductors reported an absence of isotope effect at optimal doping, questioning the previous work by us \cite {gweon-nature}. Here, we report a new result that sheds light on this puzzling discrepancy as well as the nature of the electron lattice interaction in the cuprates: the anomalous isotope effect at optimal doping \cite {gweon-nature}, re-confirmed here, vanishes on a mere 2 % overdoping of holes. This result implies a rapid change of the nature of the electron-lattice interaction near optimal doping. We also find that the data by Douglas et al. \cite {dessau-comment} are actually characteristic of significantly over-doped samples, not of optimally doped samples as they claimed.
dc.identifierhttps://arxiv.org/abs/0708.1027
dc.identifierhttp://arxiv.org/abs/0708.1027
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/135753
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleUnusual oxygen isotope effects in cuprates -- importance of doping
dc.typetext

Files

Collections

arXiv