Electronic structure and superconductivity in unconventional cuprates Ba$_2$CuO$_{3+\delta}$

27 Sep 2019 Le Congcong Jiang Kun Li Yinxiang Qin Shengshan Wang Ziqiang Zhang Fuchun Hu Jiangping

We study the recently discovered $73$K high-$T_c$ superconductor Ba$_2$CuO$_{3+\delta}$ at $\delta\simeq0.2$ grown under high pressure. Neutron experiments find that the polycrystal exhibits a structure similar to La$_2$CuO$_4$, but with dramatically different lattice parameters due to the CuO$_6$ octahedron compression... (read more)

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Categories


  • SUPERCONDUCTIVITY
  • STRONGLY CORRELATED ELECTRONS