Filling dependence of the zigzag Hubbard ladder for the quasi-one-dimensional superconductor Pr2Ba4Cu7O15−δ
Kouichi Okunishi
DOI 10.1103/PhysRevB.75.174514 · Physical Review B
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Abstract
We investigate filling dependence of the zigzag Hubbard ladder using density-matrix renormalization group method. We illustrate the chemical-potential vs electron-density and spin gap vs electron-density curves, which reflect characteristic properties of the electron state. On the basis of the obtained phase diagram, we discuss the connection to a quasi-one-dimensional superconductor Pr2Ba4Cu7O15−δ.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Pr2Ba4Cu7O15-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 18 | Pressure not reported | onset |
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