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Percolative superconductivity in La2CuO4.06 by lattice granularity patterns with scanning micro x-ray absorption near edge structure
Poccia, N; Chorro, M; Ricci, A; Xu, W; Marcelli, A; Campi, G; Bianconi, A;徐伟
2014
发表期刊APPLIED PHYSICS LETTERS
卷号104期号:22页码:221903
摘要The simplest cuprate superconductor La2CuO4+y with mobile oxygen interstitials exhibits a clear phase separation. It is known that oxygen interstitials enter into the rocksalt La2O2+y spacer layers forming oxygen interstitials rich puddles and poor puddles but only recently a bulk multiscale structural phase separation has been observed by using scanning micro X-ray diffraction. Here we get further information on their spatial distribution, using scanning La L-3-edge micro X-ray absorption near edge structure. Percolating networks of oxygen rich puddles are observed in different micrometer size portions of the crystals. Moreover, the complex surface resistivity shows two jumps associated to the onset of intra-puddle and inter-puddles percolative superconductivity. The similarity of oxygen doped La2CuO4+y, with the well established phase separation in iron selenide superconductors is also discussed. (C) 2014 AIP Publishing LLC.
学科领域Physics
DOI10.1063/1.4879286
收录类别SCI
WOS记录号WOS:000337161700023
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/224828
专题多学科研究中心
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Poccia, N,Chorro, M,Ricci, A,et al. Percolative superconductivity in La2CuO4.06 by lattice granularity patterns with scanning micro x-ray absorption near edge structure[J]. APPLIED PHYSICS LETTERS,2014,104(22):221903.
APA Poccia, N.,Chorro, M.,Ricci, A.,Xu, W.,Marcelli, A.,...&Bianconi, A;徐伟.(2014).Percolative superconductivity in La2CuO4.06 by lattice granularity patterns with scanning micro x-ray absorption near edge structure.APPLIED PHYSICS LETTERS,104(22),221903.
MLA Poccia, N,et al."Percolative superconductivity in La2CuO4.06 by lattice granularity patterns with scanning micro x-ray absorption near edge structure".APPLIED PHYSICS LETTERS 104.22(2014):221903.
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