Anomalous magnetization transition accompanying the irreversibility line in high-temperature superconductors
H. H. Wen, S. L. Li, Z. X. Zhao
DOI 10.1103/PhysRevB.62.716 · 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
By measuring the temperature-dependent diamagnetic moments in the field cooling and zero-field-cooling processes on Bi2Sr2CaCu2O8, Bi2Sr2−xLaxCuO6 and overdoped La2−xSrxCuO4 single crystals, it is found that there are two distinct transitions on each M(T) curve at a high field (above about 1 kOe), but only one transition at a lower field. The unexpected second step on the M(T) curves at the irreversibility point cannot be understood within the picture of a second-order vortex-glass melting. For YBa2Cu3O7−δ single crystals, this anomalous step was not observed up to a field of 5 T revealing a vortex glass transition behavior. Possible reasons are given to interpret this anomaly.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 85.4 | Pressure not reported | onset |
| Bi2Sr2-xLaxCuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 28 | Pressure not reported | onset |
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 26 | Pressure not reported | onset |
Similar papers
Accommodation of vortices to tilted line defects in high-Tc superconductors with various electronic anisotropies
similarity 0.96V. Hardy et al.
Source status unknown — claims are unverified
Anomalous behavior of the flux line lattice of vibrating high-Tc superconductors at 30 K in magnetic fields parallel to the CuO2 planes
similarity 0.96Y. Kopelevich et al.
Source status unknown — claims are unverified
Fluctuation of vortices in single-crystal Tl2Ba2CuO6 superconductors
similarity 0.95F. Zuo et al.
Source status unknown — claims are unverified
Absence of an energy gap in measurements of Cu-O superconductors with high-resolution electron-energy-loss spectroscopy
similarity 0.95R. B. Phelps et al.
Source status unknown — claims are unverified
Classification of the interlayer coupling in high-Tc cuprates from low-field magnetization studies
similarity 0.95N. E. Hussey et al.
Source status unknown — claims are unverified
Enhancement of the superconducting critical temperature in Bi2Sr2CaCu2O8+δ by controlling disorder outside CuO2 planes
similarity 0.95H. Hobou et al.
Source status unknown — claims are unverified