Field-induced uniform antiferromagnetic order associated with superconductivity in Pr 1-xLaCe xCuO 4-δ

Ryosuke Kadono, Kazuki Ohishi, Akihiro Koda, Shanta R. Saha, Wataru Higemoto, Masaki Fujita, Kazuyoshi Yamada

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

A strong correlation between field-induced antiferromagnetic (AF) order and superconductivity is demonstrated for an electron-doped cuprate superconductor, Pr 1-xLaCe xCuO 4-δ (PLCCO). In addition to the specimen with x = 0.11 (which is close to the AF phase boundary, x ≃ 0.10), we show that the specimen with x = 0.15 (T c ≃ 16 K at zero field) also exhibits the field-induced AF order with a reduced magnitude of the induced moment. The uniform muon Knight shift at a low magnetic field (∼ 10 2 Oe) indicates that the AF order is not localized within the cores of flux lines, which is in marked contrast to theoretical predictions for hole-doped cuprates. The presence of anomalous nondiagonal hyperfine coupling between muons and Pr ions is also demonstrated in detail.

Original languageEnglish
Pages (from-to)2806-2812
Number of pages7
Journaljournal of the physical society of japan
Volume74
Issue number10
DOIs
Publication statusPublished - 2005 Oct

Keywords

  • Electron-doped cuprates
  • Magnetism
  • Superconductivity
  • μSR

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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