Multicritical phase diagram and random field effects in superconducting bismuthates
Amnon Aharony, Assa Auerbach
DOI 10.1103/PhysRevLett.70.1874 · Physical Review Letters
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
The temperature-concentration phase diagram of doped bismuthate superconductors is described using a coarse grained anisotropic Heisenberg model. In contrast to previous treatments, we find a robust region of coexistence between the charge density wave (CDW) and the superconducting phases. Random fields break the CDW phase into metastable domains, which may explain various recent experiments. A partial Meissner effect without bulk superconductivity is predicted at low doping concentrations and at low temperatures.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| BaPbxBi1-xO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Ba1-xKxBiO3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Phenomenological and spectroscopic evidence for defect-induced high-temperature superconductivity
similarity 0.97J. C. Phillips
Source status unknown — claims are unverified
Metastable behavior of the superconducting phase in the BaBi1−xPbxO3 system
similarity 0.97D. T. Marx et al.
Source status unknown — claims are unverified
Importance of structural instability to high-temperature superconductivity
similarity 0.97A. Bussmann-Holder et al.
Source status unknown — claims are unverified
Electronic collective modes and superconductivity in layered conductors
similarity 0.97A. Bill et al.
Source status unknown — claims are unverified
Bipolaronic superconductivity: Thermodynamics, magnetic properties, and possibility of existence in real substances
similarity 0.96A. S. Alexandrov et al.
Source status unknown — claims are unverified
Effects of disorder on superconductivity of systems with coexisting itinerant electrons and local pairs
similarity 0.96G. Pawłowski et al.
Source status unknown — claims are unverified