Critical Currents and Surface Superconductivity

Park, J. G.

doi:10.1103/physrevlett.16.1196

Cited by 48 publications

(11 citation statements)

References 10 publications

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“…This slight variation in T c may be due to the different effective time scales involved in magnetic and electrical measurements. The possible surface superconductivity [16,17] of these intermetallic compounds is also not excluded. For comparison of resistivity results with the magnetic 2 θ Intensity (arb.…”

Section: Resultsmentioning

confidence: 95%

Superconductivity in Zr2(Co1−xCux)

Syu

Chen

et al. 2013

Physica C: Superconductivity

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Section: Resultsmentioning

confidence: 95%

Superconductivity in Zr2(Co1−xCux)

Syu

Chen

et al. 2013

Physica C: Superconductivity

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“…The critical field ͑H c ͒ at the low- 15 of the superconductor is expected to contribute strongly or from the surface superconductivity. 16 Recently it has been proposed that in a quasi-one-dimensional superconducting wire, such hysteresis might appear due to splitting of the band of single electron states in a series of subbands. 17 Detail discussion about the hysteresis in the light of the proposed theory is beyond the scope of this paper.…”

Section: Clean Superconducting In Nanowires Encapsulated Within Insulmentioning

confidence: 99%

Clean superconducting In nanowires encapsulated within insulating ZnS nanotubes

Sheet

Gautam

Thakur

et al. 2009

Applied Physics Letters

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We have synthesized indium (In) nanowires in pure form and large scale, encapsulated within insulating ZnS nanotubes, and examined the intrinsic superconductivity in one-dimensional limit. We demonstrate that the property of the superconducting nanowires encapsulated within insulating nanotubes can be controlled down to diameters much smaller than the characteristic lengths. The critical temperature and critical magnetic field of the one-dimensional In nanowires are not affected down to a diameter of 40 nm, almost 10% of the coherence length of bulk In. This study further suggests that superconducting interconnects, with controlled physical properties, in nanocircuits could be achieved by such encapsulation.

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“…Fink and Barnes 18 proposed instead to define the critical current by the condition that the Gibbs free energy in the critical state is equal to that of the normal state. This hypothesis gave apparently better agreement with experiments and was therefore used in several papers, [19][20][21] but it now seems that there is experimental evidence against it. 8 From the theorist's point of view it is difficult to see how the free-energy criterion used by Fink and Barnes can be fitted into the GL scheme, which should allow one to predict realistic critical currents.…”

Section: Introductionmentioning

confidence: 93%

Ginzburg-Landau Theory of Surface Superconductivity and Magnetic Hysteresis

Christiansen

Smith

1968

Phys. Rev.

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The magnetization properties of a long superconducting cylinder with an ideal surface and a radius much larger than the low-field penetration depth are discussed on the basis of numerical solutions to the onedimensional Ginzburg-Landau equations for a half-space. The current-carrying properties of the complete set of nodeless surface solutions and Meissner solutions are discussed in detail, and a separate numerical investigation of infinitesimal solutions is included. A stability criterion is derived, and infinitesimal solutions are shown to be unstable below # c3 . Finally these results are used for determining critical currents and magnetization curves. It is shown that there is a new kind of superheating and supercooling due to the shielding properties of the surface sheath. 445 446 P. V. CHRISTIANSEN AND H. SMITH

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Critical Currents and Surface Superconductivity

Cited by 48 publications

References 10 publications

Superconductivity in Zr2(Co1−xCux)

Superconductivity in Zr2(Co1−xCux)

Clean superconducting In nanowires encapsulated within insulating ZnS nanotubes

Ginzburg-Landau Theory of Surface Superconductivity and Magnetic Hysteresis

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