Oxygen-doped Mott-Hubbard cuprate superconductor La1.85Y0.15CuO4−δ from transport measurements

W. Yu; B. Liang; P. Li; S. Fujino; T. Murakami; I. Takeuchi; R. L. Greene

doi:10.1103/PhysRevB.75.020503

← Back to search

Oxygen-doped Mott-Hubbard cuprate superconductor La1.85Y0.15CuO4−δ from transport measurements

W. Yu, B. Liang, P. Li, S. Fujino, T. Murakami, I. Takeuchi, R. L. Greene

DOI 10.1103/PhysRevB.75.020503 · Physical Review B

T1

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 report resistivity, Hall effect, Nernst effect, and magnetoresistance measurements on T′-phase La1.85Y0.15CuO4−δ (LYCO) films prepared by pulsed laser deposition under different oxygen conditions. Our results show that superconductivity in LYCO originates from an oxygen-doped Mott-like insulator and not from a weakly correlated, half-filled band metal as proposed previously.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La1.85Y0.15CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	10.5	Pressure not reported	unknown
La1.85Y0.15CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	10.5	Pressure not reported	unknown
La1.85Y0.15CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	10.5	Pressure not reported	unknown
La1.85Y0.15CuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	10.5	Pressure not reported	unknown