Superconductor phase diagram

Figure 8.9 Simplified generic phase diagram for cuprate superconductors.

High temperature superconductors (HTS), 23 814, 826, 829. See also Anisotropic HTS HTS entries applications of, 23 852-872 layered, 23 827, 840 magnetic phase diagram of, 23 838-842 p- and n-type, 23 838 structural anisotropy and fluxon line fragmentation in, 23 841 thallium- and mercury-based, 23 848-850... 

Magnetic phase diagram, of high temperature superconductors,... 

Figure 1.19. Generic T-P phase diagram for BFS. The origin on the pressure axis is arbitrarily set for (TMTTF)2PF6. MH, Mott-Hubbard M, Metal SP, Spin-Peierls AF, Antiferromagnetic SDW, Spin-Density-Wave SC, Superconductor. Adapted from Auban-Senzier J6rome, 2003.

Keywords Charge transfer solid Electronic dimensionality Functional organic solid Ionicity diagram Organic metal Organic superconductor Phase transition Quantum spin liquid state Switching... 

Ishiguro T, Ito H, Yamauchi Y, Ohmichi E, Kubota M, Yamochi H, Saito G, Kartsovnik MV, Tanatar MA, Sushko YV, Logvenov GY (1997) Electronic phase diagrams and Fermi surfaces of k-(ET)2X, the high T organic superconductors. Synth Met 85 1471-1478... 

The idealized formula Bi2Sr2CaCu208 5 represents the next step in the "homologous series" of Bi-Sr-Ca-Cu-O superconductors. This phase has been reported to have a superconducting transition between 80 and 95 K. Because of the added complexity of the fourth element, Ca, no complete equilibrium phase diagram for the Bi-Sr-Ca-Cu-0 system has been published. A myriad of partial... 

Figure 7.27 Symmetry in the phase diagrams of electron and hole superconductors Nd2-, Ce Cu04 y and Laj- Sr CuO., . (after Maple, 1990).

We have hitherto discussed cuprate superconductors with holes as charge carriers. Cuprates of T structure (Fig. 7.16) such as Nd2-jcCe Cu04 and Nd2Cu04 F are electron superconductors. There is however some symmetry in the phase diagrams of the electron and hole superconductors (Maple, 1990) as can be seen from Fig. 7.27. 

In addition to the vortex lattice occupying the main part of the H-T-phase diagram of borocarbide superconductors, several other vortex phases have been identified in the nonmagnetic borocarbides. Mun et al. (1996) found, by transport measurements on YNi2B2C,... 

The problem of phase separation in cuprates superconductors has been longely debated [1-8], Recently, several experiments show the formation of electronic crystals at critical densities [9, 10], These results provide a strong experimental support for the scenario proposed some years ago (11-14) for the phase diagram of cuprate superconductors where generalized Wigner... 

Cuprate superconductors exhibit complicated phase diagrams which are functions of the doping parameter, x which controls the amount of the electron-transfer into or out of the cuprate plane. See for example Fig. 8.2. 

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