8) needs higher pressure (0.9 MPa). The single crystals were characterized by means of XRD, EDX and resistivity measurement. High pressure is in favor of forming of higher Ca-doped SCCO single crystals. SCCO single crystals grown under different oxygen pressures have almost the same quality"/>

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Single Crystals Sr14-xCaxCu24O41 Grown under Different Oxygen Pressures by Optical Floating-Zone Technique
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Special Foundation for Basic Scientific Research of Central Colleges, China University of Geosciences (Wuhan) (CUGL110236); National Natural Science Foundation of China (41104054, 61008054)

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    Abstract:

    Spin ladder compounds Sr14-xCaxCu24O41 (SCCO) single crystals have been grown under different oxygen pressures by an optical floating-zone technique. The effects of oxygen pressure on the crystal growth and properties of SCCO were studied. The SCCO single crystals with x≤8 can be grown in a flowing oxygen atmosphere. But the growth of the SCCO compounds with higher Ca content (x>8) needs higher pressure (0.9 MPa). The single crystals were characterized by means of XRD, EDX and resistivity measurement. High pressure is in favor of forming of higher Ca-doped SCCO single crystals. SCCO single crystals grown under different oxygen pressures have almost the same quality

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[Wang Qingbo, Zhou Cui, Tao Qian, Xu Zhu’an. Single Crystals Sr14-xCaxCu24O41 Grown under Different Oxygen Pressures by Optical Floating-Zone Technique[J]. Rare Metal Materials and Engineering,2011,40(11):1897~1900.]
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  • Received:March 12,2011
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