Growth of big single crystals of a new magnetic superconducting double perovskite Ba2PrRu1-xCuxO6

S. M. Rao, M. K. Wu, J. K. Srivastava, B. H. Mok, T. W. Chou, C. Y. Lu, M. C. Ling, H. L. Liu, Y. C. Liao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Single crystals of Ba2PrRu1-xCuxO 6 with x=0 to 0.2, have been grown from high temperature solutions of a mixture of PbO-PbF2 in the temperature range 1100-1200°C. Thin crystals with mostly a hexagonal and triangular plate like habit measuring up to 1-2mm across and 0.1-0.2 mm thick were obtained. The size, quality and morphology of the crystals were improved by varying the solution volume as well as additives like B2O3. Large crystals measuring up to 3mm across and 0.3 to 0.5 mm thick were obtained with 5-7 wt% solute concentration and 0.5-1 wt% of B2O3. The ZFC curves exhibit a spin glass like behavior with x = 0 and a superconducting transition at 8 to 11 K depending on x - 0.05 to 0.1. The transition was also influenced by the growth temperature and post growth annealing. Powder x-ray diffraction, EDS and Raman spectroscopic measurements confirm the presence of Cu in the crystals.

Original languageEnglish
Pages (from-to)123-129
Number of pages7
JournalCrystal Research and Technology
Volume41
Issue number2
DOIs
Publication statusPublished - 2006 Feb 1

    Fingerprint

Keywords

  • Antiferromagnetic
  • Double perovskites
  • High temperature solution growth
  • Superconductor

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Rao, S. M., Wu, M. K., Srivastava, J. K., Mok, B. H., Chou, T. W., Lu, C. Y., Ling, M. C., Liu, H. L., & Liao, Y. C. (2006). Growth of big single crystals of a new magnetic superconducting double perovskite Ba2PrRu1-xCuxO6. Crystal Research and Technology, 41(2), 123-129. https://doi.org/10.1002/crat.200510543