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arXiv 1605.04045cond-mat.mtrl-sci
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六方钨青铜CsxWO3薄膜在超导相区的外延生长

Epitaxial growth of hexagonal tungsten bronze CsxWO3 films in superconducting phase region exceeding bulk limit

Takuto Soma, Kohei Yoshimatsu, Akira Ohtomo

摘要:

本文报道了在Y稳定的ZrO_2(111)衬底上外延生长Cs_xWO_3(x = 0.11,0.20,0.31)超导薄膜。六方晶体结构不仅验证了块体的稳定区域内的组成(x = 0.20,0.31),但也为范围外的组成(x = 0.11)。超导转变温度(TC)的起始记录为5.8 K x = 0.11。我们发现TC和C轴长度之间有很强的相关性,无论Cs含量。结果表明,用轻掺杂薄膜外延法可以获得六方钨青铜的超导相隐藏区。

英文摘要:

We report epitaxial synthesis of superconducting CsxWO3 (x = 0.11, 0.20, 0.31) films on Y-stabilized ZrO2 (111) substrates. The hexagonal crystal structure was verified not only for composition within the stable region of bulk (x = 0.20, 0.31), but also for the out-of-range composition (x = 0.11). The onset of superconducting transition temperature (TC) was recorded 5.8 K for x = 0.11. We found strong correlation between TC and c-axis length, irrespective of the Cs content. The results indicate that hidden superconducting phase region of hexagonal tungsten bronze is accessible by using epitaxial synthesis of lightly doped films.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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