Crystal Research and Technology
Cryst. Res. Technol. 42, 558 (2007) - Abstract -

Effect of Pb on the properties of Sr2YRu1-xCuxO6 crystals grown from PbO-PbF2 solutions at high temperatures

S. M. Rao, M. K. Wu, K. J. Wang, N. Y. Yen, M. C. Ling*, H. L. Liu*, and C. L. Chen

Institute of Physics, Academia Sinica, Taipei, Taiwan
*Department of Physics, National Taiwan Normal University, Taipei, Taiwan

Keywords high temperature solution, crystal growth, magnetism, Raman spectroscopy, crystal structure
PACS 81.10.-h, 77.84.-s, 74.72.-h
DOI 10.1002/crat.200610863

Single crystals of Sr2YRu1-xCuxO6 with x=0 and x=0.1 were grown using PbO-PbF2 based solutions at different temperatures in the range 1150 -1350°C. The influence of Pb from the solutions and the Cu from the solid solutions of Sr2YRu1-xCuxO6 on the resulting crystals was studied using microstructure and magnetic property measurements. The peaks in the powder X-ray diffraction patterns and Raman spectra do not change in the case of x=0 crystals but shift in the presence of Cu. A diamagnetic transition indicative of superconductivity was observed in the presence of Cu and an antiferromagnetic behavior with x=0. Based on these results it is concluded that Pb may not be incorporated in the crystals and even if it does the influence is not observed.




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