Superconductivity of Metals with a Superlattice of Voids

Rudko, V. N.; Sugakov, V. I.

doi:10.1002/pssb.2221260230

Cited by 6 publications

(4 citation statements)

References 23 publications

(4 reference statements)

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“…Надґратниці нанопор впливають на оптичні, механічні, термічні та надпровідні властивості твердих тіл, що представляють інтерес до практичного застосування [65,66].…”

Section: експериментальні дослідження явища просторово-періодичного вunclassified

Physical Kinetics of Redistribution of Point Defects in Irradiated Crystals

Oliinyk

Tatarenko

2012

Usp. Fiz. Met.

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Дано огляд літературних даних експериментальних спостережень самоор-ганізації дисипативних структур у кристалах під опроміненням. Розгляну-то вплив опромінення на стійкість однорідного розподілу густини точкових дефектів та утворення ними дисипативних модульованих структур на по-верхні та в об'ємі твердого тіла. Зазначено теоретичні підходи щодо опису умов утворення таких структур.Literary review of experimental data concerned with the observation of the self-organization of dissipative structures in crystals under irradiation is presented. An influence of irradiation on the stability of the homogeneous distribution of density of point defects and the formation of their dissipative modulated structures on the surface and in the bulk of a solid is considered. Theoretical approaches to the describing of the conditions of formation of such structures are mentioned.Обозреваются литературные данные экспериментальных наблюдений са-моорганизации диссипативных структур в кристаллах при облучении. Рас-смотрено влияние облучения на устойчивость однородного распределения плотности точечных дефектов и образования ими диссипативных модули-рованных структур на поверхности и в объёме твёрдого тела. Отмечены теоретические подходы к описанию условий образования таких структур.Ключові слова: опромінення, вакансії, нестійкість, самоорганізація, диси-пативна структура, модульована структура, нанопори, надґратниця.

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Section: експериментальні дослідження явища просторово-періодичного вunclassified

Physical Kinetics of Redistribution of Point Defects in Irradiated Crystals

Oliinyk

Tatarenko

2012

Usp. Fiz. Met.

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“…Let us consider the magnetic properties of a type-II porous superconductor in a magnetic field higher than the second critical field of the bulk superconductor H c2 . It was shown that at H H c2 surface superconductivity areas arise around voids [26]. Since the Ginsburg-Landau parameter κ 1, interaction of the superconducting currents with the intrinsic magnetic field can be neglected.…”

Section: The Third Critical Field Of a Superconducting Domain Localiz...mentioning

confidence: 99%

“…To calculate the magnetic moment it is necessary to take into account the nonlinear term in the Ginzburg-Landau equation. According to [26] we may present the variation function in the form…”

Section: Diamagnetic Properties Of a Porous Superconductormentioning

confidence: 99%

Surface superconductivity areas localized near nanosize spherical defects in elastic anisotropic crystals

Shevtsova¹

2006

Supercond. Sci. Technol.

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The properties of superconductors are very sensitive to the existence of structural defects. Long-range strains which appear around structural defects lead to the formation of surface superconducting domains localized at these defects at temperatures significantly higher than the bulk superconductor critical temperature. For a spherical structural defect, the critical temperature Tc of origination of a superconducting domain localized near a void, the non-monotonic dependence of the third critical field on the defect radius caused by magnetic field quanta entrapping, and the magnetization have been calculated, taking into account the anisotropic dependence of the critical temperature on pressure.

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“…It results in an increase of the third critical field and makes possible channeling of Cooper pairs between voids. In case of the void superlattice the third critical field of the superconductor was determined in [2] and it was shown that the diamagnetic contribution of currents circulating around the voids may be by several orders of magnitude greater than the intrinsic paramagnetic susceptibility of metals.…”

Section: Introductionmentioning

confidence: 99%

Superconductors with a Superlattice of Voids

Rudko

Shevtsova

1993

Physica Status Solidi (b)

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The problem of the interaction between the vortex lattice in superconductors with the void superlattice is investigated. It is shown that the effect of the void superlattice is strong enough and under conditions that can be easily realized, changes the symmetry of the latter. Then the minimum of free energy is reached for the vortex lattice whose unit cell before deformation in the vicinity of voids has the form of a parallelogram with, in general, unequal sides. mCCJIenOBaH BOnpOC 0 B3aHMOAefiCTBHH BAXPeBOfi peUIeTKII (BP) CO CBepXpelrreTKOfi n0p. nOKa3aH0, YTO BO3nefiCTBIIe CBepXpeLUeTKH IIOp Ha BEIXpeByIo PeIIIeTKy RBnReTCR AOCTdTOYHO CIIJIbHbIM II npII JIerKO peaJIH3yeMbIX yCflOBEIRX IIPIIBOAAT K M3MeHeHBK) CEiMMeTpIIII nOCJIenHe2. npM 3TOM MIIHEIMYM CBO6OnHOfi 3~epm11 AocTm-aeTcx AJIR BHxpeBofi peruemq w.2 s n e~e~~a p~a x mefiKa no ne4opMaqm ~6n11311 nop npencTasnaeT c060fi napannenorpaMM c HepaBHbIMH, B o 6 m e~ cnyyae, CTopoHaMH.

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Superconductivity of Metals with a Superlattice of Voids

Cited by 6 publications

References 23 publications

Physical Kinetics of Redistribution of Point Defects in Irradiated Crystals

Physical Kinetics of Redistribution of Point Defects in Irradiated Crystals

Surface superconductivity areas localized near nanosize spherical defects in elastic anisotropic crystals

Superconductors with a Superlattice of Voids

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