Two-dimensional laser molecular beam epitaxy and carrier modulation of infinite-layer BaCuO2 films

Dependence of the critical temperature onnin(BaCuO2Balestrino1, Martellucci2, Medaglia3 et al. 1998Phys. Rev. B433280View full textAdd to dashboardCite

“…4 It can easily include excess oxygen (BaCuO 2ϩ␦ ), thereby acting as a charge reservoir ͑CR͒ block for the second constituent IL layer (Ca 1Ϫx Sr x )CuO 2 . Superconductivity has been reported by several authors for the BaCuO 2ϩ␦ /͑Ca, Sr͒CuO 2 superlattices 5,6 with transition temperatures as high as about 70 K ͑zero resistance temperature͒.…”

Structure refinement of Ba-based infinite-layer superlattices

“…3,4 However, recently, different research teams have reported the growth of thin films ͑300-400 Å thick͒ of the pure BaCuO 2 IL phase in a narrow range of growth conditions. [5][6][7] The growth of a true IL structure was verified by x-ray diffraction, high-resolution transmission electron microscopy, and reflection high-energy electron diffraction. Values of the c-axis parameter ranging from 4.04 to 4.2 Å were reported.…”

In situ characterization of transport properties of superconducting (Cu,C)-system thin films

“…The first step for pursuing these potentials, the Cu-and (Cu, C)-systems should be understood the fundamentals of superconducting properties of (Cu, C)Ba 2 Ca 0 CuO x [(Cu, C)-1201] (n = 1), which is their fundamental and simplest structure. However, systematic transport properties survey of the (Cu, C)-1201 phase never has been carried out, because hole-doped Cu-Ba-O materials were chemically unstable in air [18][19][20].…”