534 research outputs found
Crystal growth, transport properties, and crystal structure of the single-crystal La2-xBaxCuO4(x=0.11)
Giant suppression of superconductivity at x=0.21 in the Zn-substituted La2-xSrxCu1-yZnyO4 single crystals
Correlated Decrease between the Superconducting Volume Fraction and Tc and Possible Phase Separation in the Overdoped Regime of La2-xSrxCuO4
Giant suppression of superconductivity at x=0.21 in the Zn-substituted La2-xSrxCu1-yZnyO4 single crystals
Spectromicroscopy of electronic phase separation in KFeSe superconductor
Structural phase separation in AFeSe system has been studied
by different experimental techniques, however, it should be important to know
how the electronic uniformity is influenced, on which length scale the
electronic phases coexist, and what is their spatial distribution. Here, we
have used novel scanning photoelectron microscopy (SPEM) to study the
electronic phase separation in KFeSe, providing a direct
measurement of the topological spatial distribution of the different electronic
phases. The SPEM results reveal a peculiar interconnected conducting
filamentary phase that is embedded in the insulating texture. The filamentary
structure with a particular topological geometry could be important for the
high T superconductivity in the presence of a phase with a large magnetic
moment in AFeSe materials.Comment: 14 pages,3 figure
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