Effects of Zn substitution for Cu on superconducting and normal-state properties of (La,Sr)2CuO4, (Nd,Ce,Sr)2CuO4, and (Nd,Ce)2CuO4
S. Ikegawa, T. Yamashita, T. Sakurai, R. Itti, H. Yamauchi, S. Tanaka
DOI 10.1103/PhysRevB.43.2885 · Physical Review B
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
Superconducting and normal-state properties of Zn-doped samples of La1.85Sr0.15Cu1−xZnxO4−δ (T phase), Nd1.4Ce0.2Sr0.4Cu1−xZnxO4−δ (T* phase), and Nd1.85Ce0.15Cu1−xZnxO4−δ (T’ phase) are investigated for Zn content x in the range of 0–0.04. Zn doping alters the lattice parameters for the T and T* phases but does not for the T’ phase. For all of the T, T*, and T’ phases, Tc, the Meissner signal, and the shielding signal monotonically decrease for increasing x. From the magnetic-susceptibility measurement, it is suspected that isolated Cu spins are induced around doped Zn in the T phase. As the Zn content increases, the magnitude of the Hall coefficient decreases in both T and T’ phases, while the carrier density, estimated from a chemical analysis, remains constant. Possible mechanisms for this are discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La1.85Sr0.15Cu1-xZnxO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La1.85Sr0.15Cu1-xZnxO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nd1.4Ce0.2Sr0.4Cu1-xZnxO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nd1.4Ce0.2Sr0.4Cu1-xZnxO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nd1.85Ce0.15Cu1-xZnxO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nd1.85Ce0.15Cu1-xZnxO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Effects of Ni-to-Cu substitution on the properties of the high-Tcsuperconductor La1.85Sr0.15CuO4−y
similarity 0.94W. Kang et al.
Source status unknown — claims are unverified
Superconductivity under pressure of La2−xBaxCuO4 (0.05≤x≤0.25) and Nd1.85Ce0.15CuO4−δ
similarity 0.94W. J. Liverman et al.
Source status unknown — claims are unverified
Contrasting Ni- and Zn-substitution effects on magnetic properties and superconductivity in La2−xSrxCuO4
similarity 0.94T. Nakano et al.
Source status unknown — claims are unverified
Electronic Inhomogeneity and Breakdown of the Universal Thermal Conductivity of Cuprate Superconductors
similarity 0.94X. F. Sun et al.
Source status unknown — claims are unverified
Lattice instabilities and the effect of copper-oxygen-sheet distortions on superconductivity in doped La2CuO4
similarity 0.94M. K. Crawford et al.
Source status unknown — claims are unverified
Magnetic properties and electronic conduction of superconducting La2−xSrxCuO4
similarity 0.93T. Nakano et al.
Source status unknown — claims are unverified