Peak effect due to Josephson vortices in superconducting Pr0.88LaCe0.12CuO4δ single crystals

Yue Wang, Cong Ren, Lei Shan, Shiliang Li, Pengcheng Dai, and Hai-Hu Wen
Phys. Rev. B 75, 134505 – Published 6 April 2007

Abstract

We have measured ac magnetic susceptibility (χ=χ+iχ) of the electron-doped superconducting Pr0.88LaCe0.12CuO4δ with applied magnetic field (H) either parallel or perpendicular to the CuO2 plane (Hab-plane or Hc-axis). For Hab-plane, a peak in the temperature dependence of the screening current is revealed as a dip in the real part of the ac susceptibility χ. The temperature at which this peak anomaly occurs decreases with increasing field and lies well below the irreversibility line in the HT phase diagram. This peak effect may arise from the phase transition of Josephson vortices from a quasiordered vortex lattice to a disordered glass phase.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 5 July 2006

DOI:https://doi.org/10.1103/PhysRevB.75.134505

©2007 American Physical Society

Authors & Affiliations

Yue Wang1, Cong Ren1, Lei Shan1, Shiliang Li2, Pengcheng Dai2,3, and Hai-Hu Wen1,*

  • 1National Laboratory for Superconductivity, Institute of Physics and Beijing National Laboratory for Condensed Matter Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080, People’s Republic of China
  • 2Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200, USA
  • 3Center for Neutron Scattering, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6393, USA

  • *Electronic address: hhwen@aphy.iphy.ac.cn

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 75, Iss. 13 — 1 April 2007

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×