On the theory of ferromagnet/superconductor heterostructures

Faure, Maxime; Buzdin, Alexandre I.; Gusakova, D.

doi:10.1016/j.physc.2007.01.013

Cited by 19 publications

(18 citation statements)

References 22 publications

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“…In the Cooper limit case (k s d s 51), we obtain the main results of the paper [9]. If the layers F 1 and F 2 , and interfaces F 1 /S and S/F 2 have identical parameters, the problem is reduced to the known expression for the symmetrical F/S/F trilayer [3,7,11].…”

Section: Resultsmentioning

confidence: 76%

“…The layers may have different parameters: coherence lengths, thicknesses, free path length, Fermi velocities, zone parameters, exchange fields, and so on. Fauré et al [9] have shown in simple Cooper limit for the F 1 /S/F 2 trilayer that the differences in the ferromagnetic layer thicknesses (d f ), exchange fields (I), interface transparencies, and spin-flip scattering times lead to significant modifications of phase diagrams and change (amplify or attenuate) the spin-valve effect.…”

Section: Introductionmentioning

confidence: 99%

“…The distinctions in materials (F 1 and F 2 ) and their properties, in thicknesses (d f1 and d f2 ), and in the parameters of interfaces (F 1 /S and S/F 2 ) are considered among the causes of incommensurability of layers. Unlike the work [9], we expand the theory beyond the simple Cooper limit. We also take into account the complication of phase diagrams related to occurrence of the p-phase magnetism (in the F 1 /S/F 2 system) and discuss possible spin-switch application.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Proximity effect in the finite and incommensurate ferromagnet/superconductor systems

Proshin

Luchkin

Khusainov

2009

Journal of Magnetism and Magnetic Materials

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Section: Resultsmentioning

confidence: 76%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Proximity effect in the finite and incommensurate ferromagnet/superconductor systems

Proshin

Luchkin

Khusainov

2009

Journal of Magnetism and Magnetic Materials

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“…A similar nonsymmetrical design was fabricated and examined by Fauré et al [31] (and also by Cadden-Zimansky et al [32] with different F-layer thickness), however, in that case they considered a thin superconducting layer, 2 S S d ≤ ξ  (in the notations of paper [31] the superconducting layer thickness is determined as d S ≤ ξ S ). In our case the analysis is valid also at the condition 2 ,…”

Section: The F/s/f Core Structure Of Superconducting Spin Valvementioning

confidence: 99%

Reentrance phenomenon in superconductor/ferromagnet nanostructures and their application in superconducting spin valves for superconducting electronics

Сидоренко

2017

Low Temperature Physics

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In superconductor/ferromagnet layered structures, a Fulde-Ferrell-Larkin-Ovchinnikov-like inhomogeneous superconducting pairing give rise. The singlet and zero-projection triplet components of the pairing oscillate in space, and the presence of interfaces causes interference phenomena. As the result of the interference, the superconducting critical temperature T c oscillates as a function of the ferromagnetic layer thicknesses or, even more spectacular, reentrant superconductivity appears. Two ferromagnetic layers can be combined with a superconducting layer into a superconducting spin valve. Proper design and choice of the material parameters give possibility to control superconducting T c manipulating with magnetic configurations in the system. The conditions to get large spin-valve effect, i.e., a large shift in the critical temperature, are reviewed in the article.

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“…Recently, a report on the optical properties in the ferromagnetsuperconductor superlattice demonstrates the occurrence of novel feature of an electromagnetic metamaterial, i.e., the negative index of refraction [19]. Moreover, the inherent spin-valve effect can be theoretically investigated in the hybrid structure of ferromagnetsuperconductor-ferromagnet [20].…”

Section: Introductionmentioning

confidence: 99%

Microwave Properties of a High-Temperature Superconductor and Ferromagnetic Bilayer Structure

Wu¹,

Chen²

2011

PIER

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Abstract-Microwave properties for a bilayer structure made of the high-temperature superconducting and the ferromagnetic materials are theoretically investigated. The properties are explored through the effective surface impedance calculated by using the enhanced twofluid model for high-temperature superconductors together with the transmission line theory. The calculated effective surface impedance will be numerically analyzed as a function of the frequency, the temperature, and the thicknesses of the constituent layers. It is found that, for a thinner superconducting film, the effective surface resistance is a strong function of the frequency, and the effective surface reactance exhibits a peak and a dip in the frequency-domain. In the study of the effect of thickness in ferromagnetic substrate, there is a peak frequency in the surface reactance for a thinner substrate. There is also a threshold thickness for the ferromagnetic substrate such that it behaves like a bulk substrate when its thickness is larger than this threshold value. In the temperature dependence of surface reactance, the peak near critical temperature is shifted to lower temperature and broadened as the film thickness decreases.

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On the theory of ferromagnet/superconductor heterostructures

Cited by 19 publications

References 22 publications

Proximity effect in the finite and incommensurate ferromagnet/superconductor systems

Proximity effect in the finite and incommensurate ferromagnet/superconductor systems

Reentrance phenomenon in superconductor/ferromagnet nanostructures and their application in superconducting spin valves for superconducting electronics

Microwave Properties of a High-Temperature Superconductor and Ferromagnetic Bilayer Structure

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