Magnetic and superconducting behaviours of doped and undoped double perovskite Ba2PrRuO6

S. M. Rao, M. K. Wu, J. K. Srivastava, B. H. Mok, C. Y. Lu, Y. C. Liao, Y. Y. Hsu, Y. S. Hsiue, Y. Y. Chen, S. Neeleshwar, S. Tsai, J. C. Ho, H. L. Liu

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Our detailed measurements show the undoped double perovskite Ba 2+2Pr3+Ru5+O2- 6 to be a nonmetallic (insulating) spin glass (SG) and the ∼5-10% Cu-doped (i.e., Cu-concentration/(Cu+Ru-concentration) ∼5-10%) system to be a spin glass superconductor (SGSC), though the critical temperature, Tc, (∼8-11 K) and the superconducting volume fraction, fsc, (∼1-4%) are small. This smallness is presumably due to the presence of a large number of pair breaking spins and small carrier concentration in the lattice. Results and their implications are discussed.

Original languageEnglish
Pages (from-to)71-81
Number of pages11
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume324
Issue number1
DOIs
Publication statusPublished - 2004 Apr 5

Keywords

  • 74.25.Ha
  • 74.72.-h
  • 74.72.Yg
  • 75.50.Lk
  • Cuproruthenate
  • Double perovskite
  • Frustration
  • High- T superconductivity
  • Magnetic superconductor
  • Spin glass

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Rao, S. M., Wu, M. K., Srivastava, J. K., Mok, B. H., Lu, C. Y., Liao, Y. C., Hsu, Y. Y., Hsiue, Y. S., Chen, Y. Y., Neeleshwar, S., Tsai, S., Ho, J. C., & Liu, H. L. (2004). Magnetic and superconducting behaviours of doped and undoped double perovskite Ba2PrRuO6. Physics Letters, Section A: General, Atomic and Solid State Physics, 324(1), 71-81. https://doi.org/10.1016/j.physleta.2004.02.029