Possible enhancement of superconductivity in ladder-type cuprates by longitudinal compression
Hikaru Sakamoto, Kazuhiko Kuroki
DOI 10.1103/PhysRevResearch.2.022055 · Physical Review Research
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We study theoretically the effect of uniaxial deformation of ladder-type cuprate superconductors. Model construction based on first principles calculation shows that the rung-to-leg ratio of the nearest-neighbor hoppings counterintuitively increases when the lattice is compressed in the longitudinal (leg) direction. This leads to an enhancement of the superconducting transition temperature, which intuitively is expected when compressed in the rung direction. Such a trend is traced back to the on-site hybridization between Cu4s and Cudx2−y2 orbitals, which varies and changes sign upon lattice deformation.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (Sr,Ca)14Cu24O41 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 10 | Pressure not reported | onset |
| SrCu2O3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Tunneling and break junction spectroscopy of the ambient-pressure semiconducting and superconducting gap structures in the ladder compound (Sr, Ca)14Cu24O41
similarity 0.94Toshikazu Ekino et al.
Source status unknown — claims are unverified
Pressure-Induced Dimensional Crossover and Superconductivity in the Hole-Doped Two-Leg Ladder Compound Sr14−xCaxCu24O41
similarity 0.94T. Nagata et al.
Source status unknown — claims are unverified
Possible high-Tc superconductivity due to incipient narrow bands originating from hidden ladders in Ruddlesden-Popper compounds
similarity 0.94Daisuke Ogura et al.
Source status unknown — claims are unverified
d-wave superconductivity in coupled ladders
similarity 0.94J. P. L. Faye et al.
Source status unknown — claims are unverified
High-Tc superconductivity due to coexisting wide and narrow bands: A fluctuation exchange study of the Hubbard ladder as a test case
similarity 0.94Kazuhiko Kuroki et al.
Source status unknown — claims are unverified
d-wave superconductivity of the hole-doped (SrCa)10Cu17O29 ladder compound
similarity 0.93A. I. D’yachenko et al.
Source status unknown — claims are unverified