Anomalous, hysteretic, transverse magnetoresistance in superconducting thin films with magnetic vortex arrays

J. E. Villegas; A. Sharoni; C. P. Li; Ivan K. Schuller

doi:10.1063/1.3159466

Anomalous, hysteretic, transverse magnetoresistance in superconducting thin films with magnetic vortex arrays

J. E. Villegas, A. Sharoni, C. P. Li, Ivan K. Schuller

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Abstract

We have studied a superconducting/ferromagnetic hybrid system in which the normal to superconducting phase transition is controlled by the magnetic history. An anomalous transverse resistance appears at the phase transition, which shows magnetic hysteresis and a strong current dependence. We show that the anomaly originates from current redistributions due to the inhomogeneous superconductivity of this system.

Original language	English
Article number	252507
Journal	Applied Physics Letters
Volume	94
Issue number	25
DOIs	https://doi.org/10.1063/1.3159466
State	Published - 2009
Externally published	Yes

Bibliographical note

Funding Information:
Work supported by NSF and US-AFOSR. We thank the referee for suggesting the model used in the data analysis.

Funding

Work supported by NSF and US-AFOSR. We thank the referee for suggesting the model used in the data analysis.

Funders	Funder number
US-AFOSR
National Science Foundation

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10.1063/1.3159466

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AU - Li, C. P.

AU - Schuller, Ivan K.

N1 - Funding Information: Work supported by NSF and US-AFOSR. We thank the referee for suggesting the model used in the data analysis.

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AB - We have studied a superconducting/ferromagnetic hybrid system in which the normal to superconducting phase transition is controlled by the magnetic history. An anomalous transverse resistance appears at the phase transition, which shows magnetic hysteresis and a strong current dependence. We show that the anomaly originates from current redistributions due to the inhomogeneous superconductivity of this system.

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Anomalous, hysteretic, transverse magnetoresistance in superconducting thin films with magnetic vortex arrays

Abstract

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