Retarded magnetic relaxation in levitated superconductors

Smolyak, B. M.; Perelshtein, G. N.; Ermakov, G. V.

doi:10.1134/s1063785006020027

Cited by 8 publications

(8 citation statements)

References 5 publications

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“…In the experiments we used the same "magnet-HTS disk" system and the same method of magnetization as described in the section 3.4. The setup was upgraded to be able to measure the rate of relaxation when the sample is imposed absolutely rigid or elastic mechanical constraint with the stiffness coefficients 500 N/m or 15 N/m (the experimental details, see in the work of Smolyak et al (2006). Fig.…”

Section: Magnetic Relaxation In Levitating and "Fixed" Superconductorsmentioning

confidence: 99%

Applications of High-Tc Superconductivity

Luiz¹

2011

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in Rio de Janeiro, (UFRJ) Brazil. He obtained doctor degree in Chemical Engineering (DSc.) at COPPE -"Universidade Federal do Rio de Janeiro", (UFRJ) in Brazil. The year of degree obtaining is 1982. The research areas which were always in the focus of his activities are: thermodynamics, solid state physics, materials science and superconductivity. His present interests are: superconductivity, superconducting materials, applications of superconductivity, superconducting devices, microscopic theories of superconductivity. Until now, Dr. Luiz has published 44 articles in scientific journals, 23 books and 62 articles in annals of events. He has also published 22 presentations of events (different congresses, conference or lectures), translated 19 books, and participated in 43 graduate boards. He has already been active as the Editor of 3 published books.

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Section: Magnetic Relaxation In Levitating and "Fixed" Superconductorsmentioning

confidence: 99%

Applications of High-Tc Superconductivity

Luiz¹

2011

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“…This effect is explained by the increase in the pinning force after application of the ac field. Retardation of the magnetic force relaxation in a levitated superconductor was observed in [9]. The decrease in the force creep is assumed to be due to a magnetic bias feedback in the sample, which restores the nonequilibrium magnetic structure destructed by the creep.…”

Section: Introductionmentioning

confidence: 95%

Elimination of magnetic relaxation in superconductors on approaching a ferromagnet

Smolyak

Ermakov

2010

Physica C: Superconductivity

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“…In the paper of Smolyak et al (2006) it was noted the results of the experimental studies of magnetic force relaxation are contradictory. The direct measurements of the interaction force between magnet and superconductor (Moon et al, 1990;Riise et al, 1992;Smolyak et al, 2002) showed a considerable decrease of the force with time.…”

Section: Magnetic Relaxation In Levitating and "Fixed" Superconductorsmentioning

confidence: 99%

“…The setup was upgraded to be able to measure the rate of relaxation when the sample is imposed absolutely rigid or elastic mechanical constraint with the stiffness coefficients 500 N/m or 15 N/m (the experimental details, see in the work of Smolyak et al (2006). Fig.…”

Section: Magnetic Relaxation In Levitating and "Fixed" Superconductorsmentioning

confidence: 99%

“…The phenomenon of internal magnetic relaxation is considered in more detail below in the section 3. Smolyak et al (2006) studied the dependence of relaxation rate of magnetic force on the rigidity of constraints imposed on a "magnet-superconductor" system. The magnetic force in the suspension system decreases at maximum rate when HTS sample and magnet are rigidly fixed; that is, a rigid mechanical constraint is imposed on the suspension object (HTS sample or magnet).…”

Section: Introductionmentioning

confidence: 99%

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