Protected Vacuum Annealing Effect on Single Crystals of Pr1-xLaCe x CuO4 in the Overdoped Regime

M. A. Baqiya, B. Triono, Darminto, T. Adachi, A. Takahashi, T. Konno, M. Watanabe, T. Prombood, Y. Koike

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)

Abstract

We report the effect of protected vacuum annealing on the superconducting (SC) and magnetic properties of Pr1-xLaCe x CuO4 (PLCCO) single crystals in the overdoped regime (x = 0.13 - 0.20). The powders and single crystals of PLCCO with all x were synthesized by the solid state reaction and grown by the travelling solvent floating zone (TSFZ) method, respectively. The powder x-ray diffraction (XRD) results analyzed by the Rietveld method have shown that there is a systematic decrease in the c-axis length with increasing x, suggesting the proper substitution of Ce for Pr in overdoped PLCCO up to x = 0.20. The so-called two-step annealing performed in the overdoped regime was essential for increasing the SC volume fraction estimated from the magnetic susceptibility measurements. Furthermore, the temperature dependence of the normal-state magnetic susceptibility for reduced crystals of PLCCO with all x has exhibited a Curie-Weiss-like behavior regardless of various steps of the protected vacuum annealing process.

Original languageEnglish
Article number012011
JournalIOP Conference Series: Materials Science and Engineering
Volume196
Issue number1
DOIs
Publication statusPublished - 2017 May 20
Event3rd International Conference on Functional Materials Science 2016, ICFMS 2016 - Sanur-Bali, Indonesia
Duration: 2016 Oct 192016 Oct 20

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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