Magnetic field and temperature phase diagram of the pressurized organic superconductor κ−(BEDT−TTF)2Cu[N(CN)2]Br in the field parallel to the conducting plane
S. Kamiya, Y. Shimojo, M. A. Tanatar, T. Ishiguro, H. Yamochi, G. Saito
DOI 10.1103/PhysRevB.65.134510 · 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
The upper critical field Hc2 of the layered organic superconductor κ−(BEDT−TTF)2Cu[N(CN)2]Br has been studied with emphasis on the field direction parallel to the conducting plane. Application of hydrostatic pressure changes the shape of the Hc2(T) diagram, removing a notable curvature observed at ambient pressure in the high-temperature region and giving almost linear dependence. The change is ascribed to the dominance of the orbital pair-breaking effect under pressure as opposed to the Pauli paramagnetic limiting of Hc2 at ambient pressure. An abrupt change by pressure of the slope of the Hc2(T) curve in a temperature range near Tc is ascribed to the phase change in the material due to the ordering of the ethylene fragments of the BEDT-TTF molecules.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| (BEDT-TTF)2Cu[N(CN)2]Br Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 11.6 | Pressure unresolved | unknown |
| (BEDT-TTF)2Cu[N(CN)2]Br Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 11.3 | 0.0001 GPa | unknown |
| (BEDT-TTF)2Cu[N(CN)2]Br Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 6.3 | 0.15 GPa | unknown |
| (BEDT-TTF)2Cu[N(CN)2]Br Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 4.3 | 0.2 GPa | unknown |
| (BEDT-TTF)2Cu[N(CN)2]Br Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2.4 | 0.24 GPa | unknown |
| (BEDT-TTF)2Cu(NCS)2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Interlayer magnetoresistance in the organic superconductor κ−(BEDT−TTF)2Cu[N(CN)2]Br near the superconducting transition
similarity 0.96F. Zuo et al.
Source status unknown — claims are unverified
Effects of inhomogeneity on the interlayer magnetoresistance in the organic superconductor κ−(BEDT−TTF)2Cu[N(CN)2]Br
similarity 0.96F. Zuo et al.
Source status unknown — claims are unverified
Influence of internal disorder on the superconducting state in the organic layered superconductor κ−(BEDT−TTF)2Cu[N(CN)2]Br
similarity 0.96M. Pinterić et al.
Source status unknown — claims are unverified
Anomalous low-temperature and high-field magnetoresistance in the organic superconductor β″−(BEDT−TTF)2SF5CH2CF2SO3
similarity 0.95F. Zuo et al.
Source status unknown — claims are unverified
Critical fields and mixed-state properties of the layered organic superconductor κ-(BEDT−TTF)2I3
similarity 0.95S. Wanka et al.
Source status unknown — claims are unverified
Effects of randomness on the critical temperature in quasi-two-dimensional organic superconductors
similarity 0.95Enver Nakhmedov et al.
Source status unknown — claims are unverified