Superconducting d -wave stripes in cuprates: Valence bond order coexisting with nodal quasiparticles
Superconducting d -wave stripes in cuprates: Valence bond order coexisting with nodal quasiparticles
复制标题
铜酸盐中的超导 d 波条纹：价键序与节点准粒子共存
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Oliver Rosch
中科院分区：
文献类型：
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作者：
M. Vojta;Oliver Rosch
We point out that unidirectional bond-centered charge-density-wave states in cuprates involve electronic order in both $s$- and $d$-wave channels, with nonlocal Coulomb repulsion suppressing the $s$-wave component. The resulting bond-charge-density wave, coexisting with superconductivity, is compatible with recent photoemission and tunneling data and as well as neutron-scattering measurements, once long-range order is destroyed by slow fluctuations or glassy disorder. In particular, the real-space structure of $d$-wave stripes is consistent with the scanning-tunneling-microscopy measurements on both underdoped ${mathrm{Bi}}_{2}{mathrm{Sr}}_{2}mathrm{Ca}{mathrm{Cu}}_{2}{mathrm{O}}_{8+ensuremath{delta}}$ and ${mathrm{Ca}}_{2ensuremath{-}x}{mathrm{Na}}_{x}mathrm{Cu}{mathrm{O}}_{2}{mathrm{Cl}}_{2}$ of Kohsaka et al. [Science 315, 1380 (2007)].
We point out that unidirectional bond-centered charge-density-wave states in cuprates involve electronic order in both $s$- and $d$-wave channels, with nonlocal Coulomb repulsion suppressing the $s$-wave component. The resulting bond-charge-density wave, coexisting with superconductivity, is compatible with recent photoemission and tunneling data and as well as neutron-scattering measurements, once long-range order is destroyed by slow fluctuations or glassy disorder. In particular, the real-space structure of $d$-wave stripes is consistent with the scanning-tunneling-microscopy measurements on both underdoped ${mathrm{Bi}}_{2}{mathrm{Sr}}_{2}mathrm{Ca}{mathrm{Cu}}_{2}{mathrm{O}}_{8+ensuremath{delta}}$ and ${mathrm{Ca}}_{2ensuremath{-}x}{mathrm{Na}}_{x}mathrm{Cu}{mathrm{O}}_{2}{mathrm{Cl}}_{2}$ of Kohsaka et al. [Science 315, 1380 (2007)].