Anomalous quenching of the remanent resistivity in YBCO ceramics

Emma Mogilko; Yehuda Schlesinger; Leonid Burlachkov

doi:10.1016/s0921-4526(99)02230-9

Anomalous quenching of the remanent resistivity in YBCO ceramics

Emma Mogilko
, Yehuda Schlesinger
, Leonid Burlachkov

Department of Physics - at Bar-Ilan University

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

2 Scopus citations

Abstract

We report an anomalous reduction of the resistivity in certain YBCO ceramics, upon applying and consequently removing a low DC magnetic field. This phenomenon is observed just below T_c, while at lower temperatures the observed remanent resistivity is higher than the pristine, similar to the characteristic "field-on" resistivity hump. We show that this effect can be interpreted as originating in an intricate interplay of the frozen-in screening currents and the superconducting percolating current in the presence of the complex intergranular boundary system.

Original language	English
Pages (from-to)	911-912
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	284-288
Issue number	PART I
DOIs	https://doi.org/10.1016/s0921-4526(99)02230-9
State	Published - 2000

Keywords

Granularity
Remanent resistivity
YBaCuO ceramics

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10.1016/s0921-4526(99)02230-9

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abstract = "We report an anomalous reduction of the resistivity in certain YBCO ceramics, upon applying and consequently removing a low DC magnetic field. This phenomenon is observed just below Tc, while at lower temperatures the observed remanent resistivity is higher than the pristine, similar to the characteristic {"}field-on{"} resistivity hump. We show that this effect can be interpreted as originating in an intricate interplay of the frozen-in screening currents and the superconducting percolating current in the presence of the complex intergranular boundary system.",

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AU - Mogilko, Emma

AU - Schlesinger, Yehuda

AU - Burlachkov, Leonid

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Y1 - 2000

N2 - We report an anomalous reduction of the resistivity in certain YBCO ceramics, upon applying and consequently removing a low DC magnetic field. This phenomenon is observed just below Tc, while at lower temperatures the observed remanent resistivity is higher than the pristine, similar to the characteristic "field-on" resistivity hump. We show that this effect can be interpreted as originating in an intricate interplay of the frozen-in screening currents and the superconducting percolating current in the presence of the complex intergranular boundary system.

AB - We report an anomalous reduction of the resistivity in certain YBCO ceramics, upon applying and consequently removing a low DC magnetic field. This phenomenon is observed just below Tc, while at lower temperatures the observed remanent resistivity is higher than the pristine, similar to the characteristic "field-on" resistivity hump. We show that this effect can be interpreted as originating in an intricate interplay of the frozen-in screening currents and the superconducting percolating current in the presence of the complex intergranular boundary system.

KW - Granularity

KW - Remanent resistivity

KW - YBaCuO ceramics

UR - https://www.scopus.com/pages/publications/0033721317

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DO - 10.1016/s0921-4526(99)02230-9

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SN - 0921-4526

VL - 284-288

SP - 911

EP - 912

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART I

ER -

Anomalous quenching of the remanent resistivity in YBCO ceramics

Abstract

Keywords

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