Fluctuational Superconductivity of Magnetic Systems

Savchenko, M. A.; Stefanovich, A. V.

doi:10.1007/978-3-642-74287-3

Research Reports in Physics

1990

DOI: 10.1007/978-3-642-74287-3

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Fluctuational Superconductivity of Magnetic Systems

M. A. Savchenko¹,

A. V. Stefanovich²

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1993

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Cited by 11 publications

(2 citation statements)

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“…In order to write the sufficient condition, we must calculate the correction to the longitudinal sound velocity near the superconductive phase transition point. Corresponding calculations lead us to the following result [6,7].  is the susceptibility of free electrons in the field () Ax (that is an analog of Pauli susceptibility) (see [3]),…”

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confidence: 96%

To the microscopic theory of the superconductive phase in antiferromagnetic metal compounds

Savchenko,

Savchenko

2021

The Journal of v. N. Karazin Kharkiv National University, Series "Physics"

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The theory of the conductivity in antiferromagnetic metal compounds is constructed on the basic of the fluctuational theory of the magnetic superconductors. The superconductor in which there exist localized magnetic moments was considered. It is supposed that magnetic moments are orientated antiferromagnetically in basis plane of the crystal. An estimation for the critical temperature was obtained and necessary and enough conditions of the appearance of high-temperature superconductive phase in rare earth metal compounds were got. The criterion of an appearance of the high-temperature superconductive phase in antiferromagnetic compounds is found.

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mentioning

confidence: 96%

To the microscopic theory of the superconductive phase in antiferromagnetic metal compounds

Savchenko,

Savchenko

2021

The Journal of v. N. Karazin Kharkiv National University, Series "Physics"

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“…In this work we use a formalism that was previously suggested in [3][4][5], where the initial Hamiltonian is presented in the form of three subsystems, viz., the spin, phonon, and the subsystem that is responsible for their interaction (the spin-phonon subsystem).…”

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confidence: 99%

The effect of spin fluctuations on phase transitions in magnetic systems

2014

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In this paper we study the problem of admitting an exact solution of the effect of spin fluctuations on phase transition when modeling a multiferroic superconducting system in a strong magnetic field. New results are obtained for phase portraits of the system of equations for amplitudes of spin density and temper ature waves. The possibility is justified for the transition of the system to a phase in which superconductivity and antiferromagnetic ordering coexist, particularly via slowly fluctuating spin density waves.

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High-temperature superconductivity of ceramic systems

Ilyichev¹,

Savchenko²,

Stefanovich³

1989

Solid State Communications

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Fluctuational Superconductivity of Magnetic Systems

Cited by 11 publications

References 0 publications

To the microscopic theory of the superconductive phase in antiferromagnetic metal compounds

To the microscopic theory of the superconductive phase in antiferromagnetic metal compounds

The effect of spin fluctuations on phase transitions in magnetic systems

High-temperature superconductivity of ceramic systems

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