X-Ray Single Crystal Structure Analysis of the Three-Leg-Ladder Compound (Sr, Ca)4Cu6O10

Layered Cuprates Containing Flat Fragments: High-Pressure Synthesis, Crystal Structures and Superconducting Properties

“…These first and second series members with n = 3 and n = 5 were synthe form at 6 GPa and 1200 °C, the next member with n = 7 was not obtained ye seems that it could be obtained at higher pressures [71]. Refinement of Sr4 structure using neutron powder diffraction data confirmed the 3-leg model The Cu-O planes consist of square planar CuO2 units which are linked by b corner-sharing, corner-sharing chains of CuO2 squares form the legs of the lad in the a-direction.…”

“…These first and second series members with n = 3 and n = 5 were synthesized in bulk form at 6 GPa and 1200 °C, the next member with n = 7 was not obtained yet, although it seems that it could be obtained at higher pressures [ 71 ]. Refinement of Sr 4 Cu 6 O 10 crystal structure using neutron powder diffraction data confirmed the 3-leg model (see Figure 6 ).…”

“…Therefore, it contains spin-ladde fragment as in 80 K superconductor YBa2Cu4O8 [68,69]. Members of the spin-ladder homologous series Srn−1Cun+1O2n (n = 3, 5), Sr2Cu4O6 and Sr4Cu6O10, are stabilized by high-pressure because they have elevated crystallographi These first and second series members with n = 3 and n = 5 were synthesized in bulk form at 6 GPa and 1200 • C, the next member with n = 7 was not obtained yet, although it seems that it could be obtained at higher pressures [71]. Refinement of Sr 4 Cu 6 O 10 crystal structure using neutron powder diffraction data confirmed the 3-leg model (see Figure 6).…”