Electron-phonon interaction near a normal metal-superconductor boundary

Toplicar, James R.; Finnemore, D. K.

doi:10.1016/0038-1098(76)90671-2

Cited by 9 publications

(2 citation statements)

References 23 publications

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“…The gradual change in T, and 1 with decreasing grain size has received much interest, see for instance Watton [280], Hanak and Gittleman [281], Leger and Klein [278], and Toplicar and Finnemore [282]. The analysis in some of these papers only considers the effect of phonon softening in F(w), but certainly .…”

Section: Disordered and Amorphous Metalsmentioning

confidence: 99%

The Electron-Phonon Interaction in Normal Metals

1976

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The influence of the electron-phonon many-body renormalization effects on the electron states in normal metals is reviewed. The emphasis is on the electron-phonon mass enhancement parameter λ. The occurrence or absence of renormalization effects is discussed for different electronic properties. After a review of theoretical and experimental methods of obtaining information about λ, numerical values for this quantity are given for the elements. Other sections deal with alloys, compounds, disordered and amorphous metals, anisotropy in λ and variations in λ under pressure. Finally, brief comments are given on the electron-electron and electron-magnon renormalization of the electron mass.

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Section: Disordered and Amorphous Metalsmentioning

confidence: 99%

The Electron-Phonon Interaction in Normal Metals

1976

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“…First, the so-called Collver-Hammond [4] curve relating the variation in the highest T,-value to the Ne ratio, which presents a single broad maximum centred around 6.4 electrons per atom for 4d metal alloys, is unexplained. Secondly, both microstructuralobservations [5,6] and tunnelling data [7] show increased A-values and a higher 7, for non-transition metals with respect to their crystalline counterparts. The tendency to obtain strong-coupling superconductivity appears to be a universal feature accompanying the onset of disorder.…”

Section: Introductionmentioning

confidence: 99%

Structure and superconductivity of Nb-Zr thin films

Cavalleri

Giacomozzi

Guzmàn

et al. 1989

J. Phys.: Condens. Matter

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Structural, microstructural and superconducting characteristics of Nb-Zr thin films of composition near Nb80Zr20 have been investigated by various techniques with specific attention to the influence of sample preparation technique and of the nature and temperature of the substrate. Alloys sputter deposited at room temperature are crystalline, while those prepared at low temperature may be amorphous depending on the deposition parameters. Multilayered samples have been implemented with N2+ or Kr+ ions at various doses. Only Kr+ ions were able to induce glass formation, which was observed to depend critically on the dose. The results obtained are discussed in the light of a recent model of glass formation in irradiated films. Both for crystalline and for amorphous alloys, Tc measurements were performed using a resistance method.

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Pb junctions

Yu¹,

Kaner²

O (Without Cuprates) - Sc

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Electron-phonon interaction near a normal metal-superconductor boundary

Cited by 9 publications

References 23 publications

The Electron-Phonon Interaction in Normal Metals

The Electron-Phonon Interaction in Normal Metals

Structure and superconductivity of Nb-Zr thin films

Pb junctions

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