Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals

The rotation of magnetic field H off the plane of twin boundaries (TBs) has been found to induce transition of an ordered vortex solid phase to a disordered one due to transverse deformations of vortex lines near the TBs. It has been shown that the variation of both the depinning current density Jc...

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Бібліографічні деталі
Дата:2009
Автори: Petrusenko, Yu.T., Bondarenko, A.V.
Формат: Стаття
Мова:English
Опубліковано: НТК «Інститут монокристалів» НАН України 2009
Назва видання:Functional Materials
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Онлайн доступ:http://dspace.nbuv.gov.ua/handle/123456789/136620
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Цитувати:Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals // Yu.T. Petrusenko, A.V. Bondarenko // Functional Materials. — 2009. — Т. 16, № 1. — С. 11-16. — Бібліогр.: 21 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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spelling irk-123456789-1366202018-06-17T03:08:28Z Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals Petrusenko, Yu.T. Bondarenko, A.V. Characterization and properties The rotation of magnetic field H off the plane of twin boundaries (TBs) has been found to induce transition of an ordered vortex solid phase to a disordered one due to transverse deformations of vortex lines near the TBs. It has been shown that the variation of both the depinning current density Jc and the activation energy Uplef corresponding to plastic vortex creep with angle θ = ∠ H,TB are not changed qualitatively with increasing concentration of point defects nd, but this variation is strongly affected by the evolution of a kinked structure of vortex lines with the angle θ. It has been also shown that the current density Jc and energy Uplef behave quite differently as the angle θ and the concentration nd vary, and in particular, angular variation of the pinning force in the creep regime Fp, which is defined by competition between the current density Jc and the energy Uplef, depends on the concentration nd and on the driving force value. Встановлено, що поворот магнітного поля Н з виходом з площини меж двійників (МД) ініціює перехід упорядкованої вихрової фази у неупорядковану внаслідок появи поперечних деформацій вихрових ниток в околі МД. Показано, що зміна густини струму депінінгу Je та енергії активації Uplef, яка відповідає пластичному крипу вихорів, з кутом θ = ∠Н,МД якісно не змінюється при збільшенні концентрації точкових дефектів nd, і ця зміна визначається еволюцією зигзагоподібної структури вихрових ниток з кутом θ. Густина струму Je та енергія Uplef змінюються у протилежних напрямках як з кутом θ, так і з концентрацією nd, а конкретна кутова залежність сили пінінгу у режимі крипу FP, яка визначається конкуренцією між густиною струму Je та енергією Uplef, залежить від концентрації nd та від величини рушійної сили. Установлено, что поворот магнитного поля Н с выходом из плоскости границ двойников (ГД) инициирует переход упорядоченной вихревой фазы в неупорядоченную из-за появления поперечных деформаций вихревых нитей в окрестности ГД. Показано, что изменение плотности тока депиннинга Je и энергии активации Uplef, соответствующей пластическому крипу вихрей, с углом θ = ∠Н,ГД качественно не меняется при увеличении концентрации точечных дефектов nd, и это изменение определяется эволюцией зигзагообразной структуры вихревых нитей с углом θ. Плотность тока Je и энергия Uplef изменяются противоположным образом как с углом θ, так и с концентрацией nd, а конкретная угловая зависимость силы пиннинга в режиме крипа FP, которая определяется конкуренцией между плотностью тока J е и энергией Uplef, зависит от концентрации nd и величины движущей силы. 2009 Article Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals // Yu.T. Petrusenko, A.V. Bondarenko // Functional Materials. — 2009. — Т. 16, № 1. — С. 11-16. — Бібліогр.: 21 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/136620 en Functional Materials НТК «Інститут монокристалів» НАН України
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
language English
topic Characterization and properties
Characterization and properties
spellingShingle Characterization and properties
Characterization and properties
Petrusenko, Yu.T.
Bondarenko, A.V.
Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals
Functional Materials
description The rotation of magnetic field H off the plane of twin boundaries (TBs) has been found to induce transition of an ordered vortex solid phase to a disordered one due to transverse deformations of vortex lines near the TBs. It has been shown that the variation of both the depinning current density Jc and the activation energy Uplef corresponding to plastic vortex creep with angle θ = ∠ H,TB are not changed qualitatively with increasing concentration of point defects nd, but this variation is strongly affected by the evolution of a kinked structure of vortex lines with the angle θ. It has been also shown that the current density Jc and energy Uplef behave quite differently as the angle θ and the concentration nd vary, and in particular, angular variation of the pinning force in the creep regime Fp, which is defined by competition between the current density Jc and the energy Uplef, depends on the concentration nd and on the driving force value.
format Article
author Petrusenko, Yu.T.
Bondarenko, A.V.
author_facet Petrusenko, Yu.T.
Bondarenko, A.V.
author_sort Petrusenko, Yu.T.
title Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals
title_short Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals
title_full Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals
title_fullStr Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals
title_full_unstemmed Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals
title_sort interplay of point and planar defects in the phase state formation and dynamics of abrikosov vortices in yba₂cu₃o₇-δ crystals
publisher НТК «Інститут монокристалів» НАН України
publishDate 2009
topic_facet Characterization and properties
url http://dspace.nbuv.gov.ua/handle/123456789/136620
citation_txt Interplay of point and planar defects in the phase state formation and dynamics of Abrikosov vortices in YBa₂Cu₃O₇-δ crystals // Yu.T. Petrusenko, A.V. Bondarenko // Functional Materials. — 2009. — Т. 16, № 1. — С. 11-16. — Бібліогр.: 21 назв. — англ.
series Functional Materials
work_keys_str_mv AT petrusenkoyut interplayofpointandplanardefectsinthephasestateformationanddynamicsofabrikosovvorticesinyba2cu3o7dcrystals
AT bondarenkoav interplayofpointandplanardefectsinthephasestateformationanddynamicsofabrikosovvorticesinyba2cu3o7dcrystals
first_indexed 2025-07-10T01:45:15Z
last_indexed 2025-07-10T01:45:15Z
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