Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current
<p dir="ltr">We use the anisotropic time-dependent Ginzburg-Landau theory to investigate the effect of a square array of out-of-plane magnetic dots on the dynamics of Josephson vortices (fluxons) in artificial stacks of superconducting-normal-superconducting (SNS) Josephson junctions...
محفوظ في:
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| مؤلفون آخرون: | , , |
| منشور في: |
2015
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| _version_ | 1864513557584936960 |
|---|---|
| author | Golibjon R. Berdiyorov (4414261) |
| author2 | Sergey Savel’ev (19691257) Feodor V. Kusmartsev (17216896) François M. Peeters (5076800) |
| author2_role | author author author |
| author_facet | Golibjon R. Berdiyorov (4414261) Sergey Savel’ev (19691257) Feodor V. Kusmartsev (17216896) François M. Peeters (5076800) |
| author_role | author |
| dc.creator.none.fl_str_mv | Golibjon R. Berdiyorov (4414261) Sergey Savel’ev (19691257) Feodor V. Kusmartsev (17216896) François M. Peeters (5076800) |
| dc.date.none.fl_str_mv | 2015-11-03T03:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1140/epjb/e2015-60628-9 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Effect_of_ordered_array_of_magnetic_dots_on_the_dynamics_of_Josephson_vortices_in_stacked_SNS_Josephson_junctions_under_DC_and_AC_current/27050317 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Nanotechnology Physical sciences Condensed matter physics Solid State and Materials |
| dc.title.none.fl_str_mv | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">We use the anisotropic time-dependent Ginzburg-Landau theory to investigate the effect of a square array of out-of-plane magnetic dots on the dynamics of Josephson vortices (fluxons) in artificial stacks of superconducting-normal-superconducting (SNS) Josephson junctions in the presence of external DC and AC currents. Periodic pinning due to the magnetic dots distorts the triangular lattice of fluxons and results in the appearance of commensurability features in the current-voltage characteristics of the system. For the larger values of the magnetization, additional peaks appear in the voltage-time characteristics of the system due to the creation and annihilation of vortex-antivortex pairs. Peculiar changes in the response of the system to the applied current is found resulting in a “superradiant” vortex-flow state at large current values, where a rectangular lattice of moving vortices is formed. Synchronizing the motion of fluxons by adding a small ac component to the biasing dc current is realized. However, we found that synchronization becomes difficult for large magnetization of the dots due to the formation of vortex-antivortex pairs.</p><h2>Other Information</h2><p dir="ltr">Published in: The European Physical Journal B<br>License: <a href="https://creativecommons.org/licenses/by/4.0" rel="license" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1140/epjb/e2015-60628-9" target="_blank">https://dx.doi.org/10.1140/epjb/e2015-60628-9</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_ced229d2b6370a1cb288ab83b037ba60 |
| identifier_str_mv | 10.1140/epjb/e2015-60628-9 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/27050317 |
| publishDate | 2015 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC currentGolibjon R. Berdiyorov (4414261)Sergey Savel’ev (19691257)Feodor V. Kusmartsev (17216896)François M. Peeters (5076800)EngineeringNanotechnologyPhysical sciencesCondensed matter physicsSolid State and Materials<p dir="ltr">We use the anisotropic time-dependent Ginzburg-Landau theory to investigate the effect of a square array of out-of-plane magnetic dots on the dynamics of Josephson vortices (fluxons) in artificial stacks of superconducting-normal-superconducting (SNS) Josephson junctions in the presence of external DC and AC currents. Periodic pinning due to the magnetic dots distorts the triangular lattice of fluxons and results in the appearance of commensurability features in the current-voltage characteristics of the system. For the larger values of the magnetization, additional peaks appear in the voltage-time characteristics of the system due to the creation and annihilation of vortex-antivortex pairs. Peculiar changes in the response of the system to the applied current is found resulting in a “superradiant” vortex-flow state at large current values, where a rectangular lattice of moving vortices is formed. Synchronizing the motion of fluxons by adding a small ac component to the biasing dc current is realized. However, we found that synchronization becomes difficult for large magnetization of the dots due to the formation of vortex-antivortex pairs.</p><h2>Other Information</h2><p dir="ltr">Published in: The European Physical Journal B<br>License: <a href="https://creativecommons.org/licenses/by/4.0" rel="license" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1140/epjb/e2015-60628-9" target="_blank">https://dx.doi.org/10.1140/epjb/e2015-60628-9</a></p>2015-11-03T03:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1140/epjb/e2015-60628-9https://figshare.com/articles/journal_contribution/Effect_of_ordered_array_of_magnetic_dots_on_the_dynamics_of_Josephson_vortices_in_stacked_SNS_Josephson_junctions_under_DC_and_AC_current/27050317CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/270503172015-11-03T03:00:00Z |
| spellingShingle | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current Golibjon R. Berdiyorov (4414261) Engineering Nanotechnology Physical sciences Condensed matter physics Solid State and Materials |
| status_str | publishedVersion |
| title | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current |
| title_full | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current |
| title_fullStr | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current |
| title_full_unstemmed | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current |
| title_short | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current |
| title_sort | Effect of ordered array of magnetic dots on the dynamics of Josephson vortices in stacked SNS Josephson junctions under DC and AC current |
| topic | Engineering Nanotechnology Physical sciences Condensed matter physics Solid State and Materials |