Antiferromagnet (Ln,Ca)CuO2.5 near the quantum critical point (Ln = Pr,Nd)

K. Kakuta, K. Ohishi, S. Furuya, W. Higemoto, R. Kadono, J. Akimitsu

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


The Neel temperatures TN of two-leg ladder compounds LnCuO2.5 (Ln: Pr, Nd) kin to LaCuO2.5 were determined by zero-field muon spin precession. It was found that TN = 17 K in PrCuO2.5 and 1.8 K in NdCuO2.5, which are both considerably reduced from TN = 125 K in LaCuO2.5. No spin precession signal was observed in Nd0.65Ca0.35CuO2.5. These results demonstrate that the spin-ladder system approaches the quantum critical point by substituting Pr or Nd for La, and that the Neel order of these compounds is completely destroyed upon Ca doping.

Original languageEnglish
Pages (from-to)168-171
Number of pages4
JournalPhysica B: Condensed Matter
Publication statusPublished - Aug 2000
Externally publishedYes
Event8th International Conference on Muon Spin Rotation, Relaxation and Resonance (muSR'99) - Les Diablerets, Switz
Duration: Aug 30 1999Sept 3 1999

ASJC Scopus subject areas

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


Dive into the research topics of 'Antiferromagnet (Ln,Ca)CuO2.5 near the quantum critical point (Ln = Pr,Nd)'. Together they form a unique fingerprint.

Cite this