An alternative interpretation of the magnetic penetration depth data on Pr2−xCexCuO4−y and La2−xCexCuO4−y

✍ Scribed by K.-K. Voo; W.C. Wu

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 368 KB
• Volume: 417
• Category: Article
• ISSN: 0921-4534
• DOI: 10.1016/j.physc.2004.10.011

✦ Synopsis

We have revisited the magnetic penetration depth data on the electron-doped cuprates, Pr 2Àx Ce x CuO 4Ày and La 2Àx Ce x CuO 4Ày . It is proposed that the transition between nodal-gap-like and nodeless-gap-like behavior upon electron-doping [e.g., see M. Kim et al., Phys. Rev. Lett. 91 (2003) 87001] can be due to a scattering of the quasiparticles in the d-wave superconducting state by an incipient or weak antiferromagnetic spin-density-wave. This conjecture is supported by the inelastic neutron scattering and angle-resolved photoemission experiments on some closely related electron-doped cuprates.