Single superconducting energy scale in the electron-doped cuprate superconductorPr2−xCexCuO4−δ

Commensurate spin dynamics in the superconducting state of an electron-doped cuprate superconductor.

We report neutron scattering studies on two single crystal samples of the electron-doped (n-type) superconducting (SC) cuprate Nd2-xCexCuO4 (x=0.15) with T(c)=18 and 25 K. Unlike the hole-doped (p-type) SC cuprates, where incommensurate magnetic fluctuations commonly exist, the n-type cuprate shows commensurate magnetic fluctuations at the tetragonal (1/2 1/2 0) reciprocal points both in the SC...

A photoemission investigation of the superconducting gap in an electron-doped cuprate superconductor

We have performed angle resolved photoelectron spectroscopy (ARPES) on the electron-doped cuprate superconductor Nd Ce CuO . Evidence is found for an anisotropic superconducting gap that is consistent with the existence of a 1.85 0.15 4 d-wave superconducting order parameter in the n-type cuprate superconductors.  2001 Elsevier Science B.V. All rights

Long-range two-dimensional superstructure in the superconducting electron-doped cuprate Pr0.88LaCe0.12CuO4

Long-range two-dimensional superstructure in the superconducting electron-doped cuprate Pr0.88LaCe0.12CuO4 B. J. Campbell,1,* S. Rosenkranz,2,† H. J. Kang,3 H. T. Stokes,1 P. J. Chupas,2,4 S. Komiya,5 Y. Ando,6 Shiliang Li,7,8 and Pengcheng Dai9 1Department of Physics and Astronomy, Brigham Young University, Provo, Utah 84602, USA 2Materials Science Division, Argonne National Laboratory, Argonn...

Title Commensurate spin dynamics in the superconducting state of an electron-doped cuprate superconductor

Bogoliubov angle in electron-doped cuprate superconductors

Within the framework of the kinetic energy driven superconducting mechanism, the momentum dependence of the Bogoliubov angle in the electron-doped cuprate superconductors is studied. By calculation of the ratio of the low energy quasiparticle spectra at positive and negative energies, it is shown that the Bogoliubov angle increases monotonically across the Fermi crossing point, suggesting a con...