Slow magnetic flux diffusion in type-II superconductors

F. Bass; B. Ya Shapiro; M. Shvartser

doi:10.1016/s0038-1098(97)00190-7

Slow magnetic flux diffusion in type-II superconductors

F. Bass
, B. Ya Shapiro
, M. Shvartser

Department of Physics - at Bar-Ilan University

Bar-Ilan University

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

The nonlinear dynamics of magnetic flux, moving in a vortex-free superconductor is considered. It has been shown that the time dependent characteristic size R of magnetic flux domains is described by the scaling behavior R ∼ t^v, where v = 1/4 for circular droplets and v = 1/3 for elongated asymmetric droplets. These domains possess a sharp magnetic flux front and exist for a macroscopic long time in contradiction with usual diffusive behavior.

Original language	English
Pages (from-to)	399-401
Number of pages	3
Journal	Solid State Communications
Volume	103
Issue number	7
DOIs	https://doi.org/10.1016/s0038-1098(97)00190-7
State	Published - Aug 1997

Bibliographical note

Funding Information:
Thus,o nec and istinguisha few differentm anifesta-tions of the magneticfl ux dropletsd ynamicsin super-conductorsF. irst of all the magneticf lux can form dropletso f rathers malls izeR whichv erys lowlyc hanges with time R - t1’4. The vortex-free space between magneticf lux dropletsm anifestsi tself as long-lived “Meissner spots” which do not overlapd uet o the flux front’ss harpnesSs.e condlyt, hed ropletsc ano verlapa nd the ‘ ‘Meissner spots’’ are filled by the flux, which expandsa ccordingt o the linear diffusion mechanism (R-t’“). These coagulatedd roplets form large, Acknowledgements-This work was supportedb y the Israel Ministry of Sciencesa nd Arts, German-Israel Foundationa nd Israel Academyo f SciencesW. e also would like to thankt he Bar-Ban Minerva Centerf or Superconductivitfoyr permanenstu pport.

Funding

Thus,o nec and istinguisha few differentm anifesta-tions of the magneticfl ux dropletsd ynamicsin super-conductorsF. irst of all the magneticf lux can form dropletso f rathers malls izeR whichv erys lowlyc hanges with time R - t1’4. The vortex-free space between magneticf lux dropletsm anifestsi tself as long-lived “Meissner spots” which do not overlapd uet o the flux front’ss harpnesSs.e condlyt, hed ropletsc ano verlapa nd the ‘ ‘Meissner spots’’ are filled by the flux, which expandsa ccordingt o the linear diffusion mechanism (R-t’“). These coagulatedd roplets form large, Acknowledgements-This work was supportedb y the Israel Ministry of Sciencesa nd Arts, German-Israel Foundationa nd Israel Academyo f SciencesW. e also would like to thankt he Bar-Ban Minerva Centerf or Superconductivitfoyr permanenstu pport.

Funders
Israel Ministry of Sciencesa nd Arts, German-Israel Foundationa nd Israel Academyo f SciencesW

Keywords

A. Superconductors

Access to Document

10.1016/s0038-1098(97)00190-7

Cite this

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title = "Slow magnetic flux diffusion in type-II superconductors",

abstract = "The nonlinear dynamics of magnetic flux, moving in a vortex-free superconductor is considered. It has been shown that the time dependent characteristic size R of magnetic flux domains is described by the scaling behavior R ∼ tv, where v = 1/4 for circular droplets and v = 1/3 for elongated asymmetric droplets. These domains possess a sharp magnetic flux front and exist for a macroscopic long time in contradiction with usual diffusive behavior.",

keywords = "A. Superconductors",

author = "F. Bass and Shapiro, \{B. Ya\} and M. Shvartser",

note = "Funding Information: Thus,o nec and istinguisha few differentm anifesta-tions of the magneticfl ux dropletsd ynamicsin super-conductorsF. irst of all the magneticf lux can form dropletso f rathers malls izeR whichv erys lowlyc hanges with time R - t1{\textquoteright}4. The vortex-free space between magneticf lux dropletsm anifestsi tself as long-lived {\textquotedblleft}Meissner spots{\textquotedblright} which do not overlapd uet o the flux front{\textquoteright}ss harpnesSs.e condlyt, hed ropletsc ano verlapa nd the {\textquoteleft} {\textquoteleft}Meissner spots{\textquoteright}{\textquoteright} are filled by the flux, which expandsa ccordingt o the linear diffusion mechanism (R-t{\textquoteright}{\textquotedblleft}). These coagulatedd roplets form large, Acknowledgements-This work was supportedb y the Israel Ministry of Sciencesa nd Arts, German-Israel Foundationa nd Israel Academyo f SciencesW. e also would like to thankt he Bar-Ban Minerva Centerf or Superconductivitfoyr permanenstu pport.",

year = "1997",

month = aug,

doi = "10.1016/s0038-1098(97)00190-7",

language = "אנגלית",

volume = "103",

pages = "399--401",

journal = "Solid State Communications",

issn = "0038-1098",

publisher = "Elsevier Ltd.",

number = "7",

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AU - Shapiro, B. Ya

AU - Shvartser, M.

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N2 - The nonlinear dynamics of magnetic flux, moving in a vortex-free superconductor is considered. It has been shown that the time dependent characteristic size R of magnetic flux domains is described by the scaling behavior R ∼ tv, where v = 1/4 for circular droplets and v = 1/3 for elongated asymmetric droplets. These domains possess a sharp magnetic flux front and exist for a macroscopic long time in contradiction with usual diffusive behavior.

AB - The nonlinear dynamics of magnetic flux, moving in a vortex-free superconductor is considered. It has been shown that the time dependent characteristic size R of magnetic flux domains is described by the scaling behavior R ∼ tv, where v = 1/4 for circular droplets and v = 1/3 for elongated asymmetric droplets. These domains possess a sharp magnetic flux front and exist for a macroscopic long time in contradiction with usual diffusive behavior.

KW - A. Superconductors

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ER -

Slow magnetic flux diffusion in type-II superconductors

Abstract

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Keywords

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