Coexistence of antiferromagnetic ordering and high-Tc superconductivity in electron-doped superconductor Nd2-xCexCuO4

T. Uefuji, T. Kubo, K. Yamada, M. Fujita, K. Kurahashi, I. Watanabe, K. Nagamine

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

Muon spin relaxation and magnetic susceptibility measurements were performed for the electron-doped superconductor Nd2-xCexCuO4 (NCCO) with a particular attention to the vicinity of the boundary in phase diagram between the antiferromagnetic (AF) and the superconducting phases. The obtained phase diagram clearly exhibits a competitive change in the volume fraction between the two phases around the phase boundary; a dramatic decrease of the AF phase and a sudden appearance of bulk superconductivity upon doping beyond x ∼ 0.13. However, the spatial coexistence of both phases is also suggested around the boundary. In contrast to the hole-doped system, the onset of Tc is approximately independent on the doping in the underdoped region of NCCO.

Original languageEnglish
Pages (from-to)208-211
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume357-360
DOIs
Publication statusPublished - 2001 Aug
Externally publishedYes

Keywords

  • Electron-doped system
  • High-T superconductivity
  • Magnetic phase diagram
  • Muon spin relaxation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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