Evidence for magnetic-field-induced decoupling of superconducting bilayers in La2−xCa1+xCu2O6
Ruidan Zhong, J. A. Schneeloch, Hang Chi, Qiang Li, Genda Gu, J. M. Tranquada
DOI 10.1103/PhysRevB.97.134520 · 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
We report a study of magnetic susceptibility and electrical resistivity as a function of temperature and magnetic field in superconducting crystals of La2−xCa1+xCu2O6 with x=0.10 and 0.15 and transition temperature Tcm=54 K (determined from the susceptibility). When an external magnetic field is applied perpendicular to the CuO2 bilayers, the resistive superconducting transition measured with currents flowing perpendicular to the bilayers is substantially lower than that found with currents flowing parallel to the bilayers. Intriguingly, this anisotropic behavior is quite similar to that observed for the magnetic irreversibility points with the field applied either perpendicular or parallel to the bilayers. We discuss the results in the context of other studies that have found evidence for the decoupling of superconducting layers induced by a perpendicular magnetic field.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La1.9Ca1.1Cu2O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 54 | Pressure not reported | onset |
| La1.85Ca1.15Cu2O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 54 | Pressure not reported | onset |
| La2-xCa1+xCu2O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 54 | Pressure not reported | onset |
| La2-xCa1+xCu2O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 52 | Pressure not reported | zero_resistance |
| La2-xCa1+xCu2O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 46 | Pressure not reported | unknown |
| La2-xCa1+xCu2O6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 40 | Pressure not reported | unknown |
Similar papers
Quasi-two-dimensional fluctuations in the magnetization of La1.9Ca1.1Cu2O6+δ superconductors
similarity 0.95Xiaoya Shi et al.
Source status unknown — claims are unverified
Growth and structural characterization of large superconducting crystals of La2−xCa1+xCu2O6
similarity 0.95J. A. Schneeloch et al.
Source status unknown — claims are unverified
Magnetic pair-breaking effects: Moment formation and critical doping level in superconducting La1.85Sr0.15Cu1−xAxO4 systems (A=Fe,Co,Ni,Zn,Ga,Al)
similarity 0.93Gang Xiao et al.
Source status unknown — claims are unverified
In situ epitaxial growth of superconducting La-based bilayer cuprate thin films
similarity 0.93I. Tsukada et al.
Source status unknown — claims are unverified
Two superconducting transitions in single-crystal La2−xBaxCuO4
similarity 0.93X. Y. Tee et al.
Source status unknown — claims are unverified
Evidence for superconductivity above 40 K in the La-Ba-Cu-O compound system
similarity 0.93C. W. Chu et al.
Source status unknown — claims are unverified