@article{82a645cb9b154a42ae1dff61e383fa6a,
title = "Infrared properties of electron-doped cuprates: Tracking normal-state gaps and quantum critical behavior in Pr2-xCexCuO4",
abstract = "We report the temperature dependence of the infrared-visible conductivity of Pr2-xCexCuO4 thin films. When varying the doping from a non-superconducting film (x = 0.11) to a superconducting overdoped film (x = 0.17), we observe, up to optimal doping (x = 0.15), a partial gap opening. The magnitude of this gap extrapolates to zero for x - 0.17. A model combining a spin density wave gap and a frequency- and temperature-dependent self-energy reproduces our data reasonably well, suggesting the coexistence of magnetism and superconductivity in this material and the existence of a quantum critical point at this Ce concentration.",
author = "A. Zimmers and Tomczak, {J. M.} and Lobo, {R. P.S.M.} and N. Bontemps and Hill, {C. P.} and Barr, {M. C.} and Y. Dagan and Greene, {R. L.} and Millis, {A. J.} and Homes, {C. C.}",
year = "2005",
month = apr,
doi = "10.1209/epl/i2004-10480-2",
language = "אנגלית",
volume = "70",
pages = "225--231",
journal = "Europhysics Letters",
issn = "0295-5075",
publisher = "IOP Publishing Ltd.",
number = "2",
}