Transport studies of La2−xSrxCuO4 near the insulator-metal-superconductor transition
B. Ellman, H. M. Jaeger, D. P. Katz, T. F. Rosenbaum, A. S. Cooper, G. P. Espinosa
DOI 10.1103/PhysRevB.39.9012 · 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 have measured the temperature-dependent resistivities of a series of samples of La2−xSrxCuO4 with 0.02≤x≤0.1 over the temperature range 0.05 K≤T≤300 K. We find the onset of superconductivity as x is increased to be correlated with a substantial drop in the magnitude of the normal-state resistivity. We observe no change, however, in the qualitative shape of the resistivity as the superconducting threshold is crossed. We also find that the low-temperature (T≤8.0 K) resistivities of the least concentrated samples can be described by variable range hopping, with a crossover between Coulomb gap and single-particle behavior occurring as x is increased.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La1.935Sr0.065CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La1.925Sr0.075CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La1.9Sr0.1CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Doping dependence of coupling between charge carriers and bosonic modes in the normal state of high-Tc superconductors
similarity 0.95H. Saadaoui & M. Azzouz
Source status unknown — claims are unverified
Magnetic properties and electronic conduction of superconducting La2−xSrxCuO4
similarity 0.95T. Nakano et al.
Source status unknown — claims are unverified
Doping dependence of scattering rate for linear-in-temperature resistivity in cuprate superconductors
similarity 0.95Mingyang Qin et al.
Source status unknown — claims are unverified
Superconductor-to-metal transition in overdoped La2−xSrxCuO4
similarity 0.95J.-S. Zhou et al.
Source status unknown — claims are unverified
Copper oxide superconductors: A distinguishable thermodynamic state
similarity 0.95J. B. Goodenough et al.
Source status unknown — claims are unverified
Relation between the electronic structure and the superconductivity of cuprates as revealed by Cu 2p photoemission and theoretical investigations
similarity 0.95A. K. Santra et al.
Source status unknown — claims are unverified