Magnetic correlations and superconductivity in La1.93 Sr0.07 CuO4 revealed by μSR

K. Ishida, W. Higemoto, K. Ohishi, A. Koda, K. H. Satoh, R. Kadono, M. Fujita, K. Yamada

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5 Citations (Scopus)

Abstract

We have performed transverse field muon spin rotation experiments on a single-crystal La1.93Sr0.07CuO4, which is close to the critical value x = 0.06, in the field range from 1 to 60 kOe in order to investigate the relation between magnetism and superconductivity in an underdoped high-Tc superconductor. The measured sample shows evidence of static magnetism at Tg ∼ 4 K, far below the superconducting transition temperature Tc = 17 K. We measured the shift and the linewidth of the fast-Fourier transform (FFT) spectra obtained in a high field of 60 kOe, both of which are dominated by Cu - 3 d spins. The temperature dependences of the shift and the linewidth indicate the development of modulated staggered correlations below 100 K. We conclude that the static staggered correlations coexist with superconductivity far below Tc.

Original languageEnglish
Pages (from-to)526-528
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
Publication statusPublished - 2007 Mar

Keywords

  • Cobalt oxide
  • NQR
  • Spin fluctuations
  • Superconductivity

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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