Cu NMR/NQR studies on magnetism in impurity/hole-doped spin-ladder compounds

Shigeki Ohsugi, Yoshio Kitaoka, Masaki Azuma, Yoshie Fujishiro, Mikio Takano, Takashi Nagata, Hirokazu Fujino, Jun Akimitsu

Research output: Contribution to journalArticlepeer-review


Cu nuclear magnetic resonance (NMR) spectra of impurities (Zn, Ni, and La)-doped spin-1/2 Heisenberg ladder compounds SrCu2O3 (Sr123) are broadened with Curie-like temperature (T) dependence. The spectra have been successfully fit by using a quasi-one-dimensional (Q1D) staggered polarization (SP) model. Such a SP has also revealed in Cu NMR measurements of Sr14 - xCaxCu24O41 (Cax) with hole-doped ladders. The origin of possible 3D antiferromagnetic (AF) long-range ordering in (Zn and Ni)-doped Sr123 and Cax around x = 12 at low T is considered to be similar. Once unpaired spins S0's are induced and 3D interlayer interaction occurs, the localized spins couple in the whole system.

Original languageEnglish
Pages (from-to)157-162
Number of pages6
JournalHyperfine Interactions
Issue number1-4
Publication statusPublished - 2001
Externally publishedYes


  • Cu NMR/NQR
  • Magnetic ordering
  • Spin ladder

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry


Dive into the research topics of 'Cu NMR/NQR studies on magnetism in impurity/hole-doped spin-ladder compounds'. Together they form a unique fingerprint.

Cite this