Type-I and Type-II Superconductivity in Wide Josephson Junctions

Schwidtal, K.

doi:10.1103/physrevb.2.2526

Cited by 34 publications

(10 citation statements)

References 13 publications

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“…In the case of non-homogeneous boundary conditions it has been shown in one dimension [9] and confirmed experimentally [12] that for a given magnetic field there is a maximum total current crossing the junction. This maximum current displays an interference like pattern when the external magnetic field is varied.…”

mentioning

confidence: 85%

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A Semi-Linear Elliptic Pde Model for the Static Solution of Josephson Junctions

Caputo

Flytzanis

Vavalis

1995

Int. J. Mod. Phys. C

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In this study we derive a semi-linear Elliptic Partial Differential Equation (PDE) problem that models the static (zero voltage) behavior of a Josephson window junction. Iterative methods for solving this problem are proposed and their computer implementation is discussed. The preliminary computational results that are given, show the modeling power of our approach and exhibit its computational efficiency.

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mentioning

confidence: 85%

“…Another way of studying the problem is to use a variational approach. The energy of the system given in Figure 2 in the absence of external currents is (12)…”

Section: mentioning

confidence: 99%

A Semi-Linear Elliptic Pde Model for the Static Solution of Josephson Junctions

Caputo

Flytzanis

Vavalis

1995

Int. J. Mod. Phys. C

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“…A first experimental observation of the magnetic field dependence of the maximum Josephson current was obtained in work [10]. Lately, many experimental and theoretical investigations of this effect have been made for junctions of different types, which are classified as so-called "short" [11][12][13][14], with dimensions that are small compared to the Josephson penetration depth l λ J and "long" [15][16][17][18], for which l λ J . Nowadays, the investigations of the behaviour of Josephson junctions in an external magnetic field for the case of annular tunnel junctions [19,20] and junctions with a ferromagnetic interlayer are also actively developed [21].…”

Section: Introductionmentioning

confidence: 99%

The effect of an external magnetic field on the maximum current of SNINS junctions near the critical temperature

Pastukh¹,

Sakhnyuk²,

Svidzinsky³

2018

Condens. Matter Phys.

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The behaviour of superconducting junctions of SNINS-type (where S is superconductor, N is normal metal, I is insulator) with anharmonic current-phase relations in the external magnetic field near the critical temperature was investigated. The dependence of the maximum current on the value of the magnetic flux in a wide range of electron transmission coefficient values was considered. Also, it was investigated how the presence of a normal layer of an arbitrary thickness in the scale of coherence length and in the presence of impurities in superconducting regions affect the sensitivity of the maximum current to the magnetic field magnitude.

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“…[2,5] Particularly, some "metastable" states (experimental points under overlap curve) were observed in Ref. [6]. Static bound states of fluxons in LJJ with artificial inhomogeneities were experimentally found in Ref.…”

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Created-by-current states in long Josephson junctions

Boyadjiev,

Andreeva,

Semerdjieva

et al. 2007

Preprint

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Critical curves "critical current -external magnetic field" of long Josephson junctions with inhomogeneity and variable width are studied. We demonstrate the existence of the regions of magnetic field where some fluxon states are stable only, if the external current through the junction is different from zero. Position and size of such regions depend on length of the junction, its geometry, parameters of inhomogeneity and form of the junction. The noncentral (left and right) pure fluxon states are appeared in the inhomogeneous Josephson junction with increase in the junction length. We demonstrate new bifurcation points with change in width of the inhomogeneity and amplitude of the Josephson current through the inhomogeneity.

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Type-I and Type-II Superconductivity in Wide Josephson Junctions

Cited by 34 publications

References 13 publications

A Semi-Linear Elliptic Pde Model for the Static Solution of Josephson Junctions

A Semi-Linear Elliptic Pde Model for the Static Solution of Josephson Junctions

The effect of an external magnetic field on the maximum current of SNINS junctions near the critical temperature

Created-by-current states in long Josephson junctions

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