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Charge density waves in d-wave superconductors: Thermodynamics and Josephson tunneling (Review Article)
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10.1063/1.4795202
/content/aip/journal/ltp/39/3/10.1063/1.4795202
http://aip.metastore.ingenta.com/content/aip/journal/ltp/39/3/10.1063/1.4795202
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Order parameter profiles for the parent BCS d-wave superconductor, , and the parent partially gapped CDW metal, . All four CDW sectors are active for the checkerboard CDW configuration, and only two unhatched sectors remain for theunidirectional one (a). The corresponding gap roses for the checkerboard (N = 4) and unidirectional (N = 2) CDW configurations. The specific calculation parameters are σ0 = 1.2, α = 10°, β = 20°, and T = 0. See explanations in the text (b).

Image of FIG. 2.
FIG. 2.

Calculated phase diagrams for and superconductors (β = 0°), as well as and ones (β = 45°). The gray boundaries correspond to the pure BCS d-wave superconductor, and the bold black ones to the pure CDW metal. The horizontal boundary at α = 45° is actual only for the checkerboard CDW configuration. See other notations and explanations in the text.

Image of FIG. 3.
FIG. 3.

Dependences of the quantities R = 2Δ(0)/Tc and Tc 0 on the parameter α for with σ0 = 1 (a). 3D map R0, α) for (b).

Image of FIG. 4.
FIG. 4.

Orientations of gap roses in both electrodes with respect to the normal n to the junction plane for the symmetrical, , and nonsymmetrical, , junction configurations.

Image of FIG. 5.
FIG. 5.

Dependences of the dimensionless Josephson tunnel current ic (a) on σ0 at various α and (b) on α at various σ0 for the symmetrical junction with γ = γ = 0.

Image of FIG. 6.
FIG. 6.

The same as in Fig. 5 , but for the symmetrical junction.

Image of FIG. 7.
FIG. 7.

Dependences of ic on α at various σ0 for the symmetrical (a) and (b) junctions with γ = γ = 0.

Image of FIG. 8.
FIG. 8.

Dependences of ic for the symmetrical junction between electrodes with α = 15° and various σ0's on the l.h.s.-electrode orientation γ for the fixed orientation of the r.h.s. electrode γ = 0 (a) and 45° (b).

Image of FIG. 9.
FIG. 9.

Dependences of ic for the symmetrical junction between electrodes with a fixed σ0 and various α's on the l.h.s.-electrode orientation γ. The orientation of the r.h.s. electrode is fixed, γ = 0.

Image of FIG. 10.
FIG. 10.

Dependences of ic on the l.h.s.-electrode orientation for the symmetrical junction between or electrodes with σ0 = 3 and α = 15°. The orientation of the r.h.s. electrode is fixed, γ′ = 0.

Image of FIG. 11.
FIG. 11.

γ-dependences of ic for the symmetrical junction between electrodes with σ0 = 3, α = 15°, and various symmetries of superconducting order parameter. The orientation of the r.h.s. electrode is fixed, γ′ = 0, with γ′ = γ′ CDW in panel (a) and γ′ = γ′ CDW —45° in panel (b). See explanations in the text.

Image of FIG. 12.
FIG. 12.

The same as in Fig. 7 , but for the non-symmetrical (a) and (b) junctions. The parameters of electrodes are the same as in Fig. 7 , and δ BCS  = 0.1. See explanations in the text.

Image of FIG. 13.
FIG. 13.

The same as in Fig. 5 , but for the non-symmetrical junctions. The parameters of electrodes are the same as in Fig. 5 , and δ BCS  = 0.1.

Image of FIG. 14.
FIG. 14.

The same as in Fig. 8a , but for the non-symmetrical junctions. The parameters of electrodes are the same as in Fig. 8a , and δ BCS  = 0.1.

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/content/aip/journal/ltp/39/3/10.1063/1.4795202
2013-03-27
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Charge density waves in d-wave superconductors: Thermodynamics and Josephson tunneling (Review Article)
http://aip.metastore.ingenta.com/content/aip/journal/ltp/39/3/10.1063/1.4795202
10.1063/1.4795202
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