Disorder-induced power-law response of a superconducting vortex on a plane

N. Shapira; Y. Lamhot; O. Shpielberg; Y. Kafri; B. J. Ramshaw; D. A. Bonn; Ruixing Liang; W. N. Hardy; O. M. Auslaender

doi:10.1103/PhysRevB.92.100501

Disorder-induced power-law response of a superconducting vortex on a plane

N. Shapira, Y. Lamhot, O. Shpielberg, Y. Kafri, B. J. Ramshaw, D. A. Bonn, Ruixing Liang, W. N. Hardy, O. M. Auslaender

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

Abstract

We report drive-response experiments on individual superconducting vortices on a plane, a realization for a (1+1)-dimensional directed polymer in random media. For this we use magnetic force microscopy to image and manipulate individual vortices trapped on a twin boundary in YBa₂Cu₃O₇-δ near optimal doping. We find that when we drag a vortex with the magnetic tip, it moves in a series of jumps. As theory suggests, the jump-size distribution does not depend on the applied force and is consistent with power-law behavior. The measured power is much larger than widely accepted theoretical calculations.

Original language	English
Article number	100501
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	92
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.92.100501
State	Published - 3 Sep 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2015 American Physical Society.

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.92.100501

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abstract = "We report drive-response experiments on individual superconducting vortices on a plane, a realization for a (1+1)-dimensional directed polymer in random media. For this we use magnetic force microscopy to image and manipulate individual vortices trapped on a twin boundary in YBa2Cu3O7-δ near optimal doping. We find that when we drag a vortex with the magnetic tip, it moves in a series of jumps. As theory suggests, the jump-size distribution does not depend on the applied force and is consistent with power-law behavior. The measured power is much larger than widely accepted theoretical calculations.",

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AU - Shpielberg, O.

AU - Kafri, Y.

AU - Ramshaw, B. J.

AU - Bonn, D. A.

AU - Liang, Ruixing

AU - Hardy, W. N.

AU - Auslaender, O. M.

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AB - We report drive-response experiments on individual superconducting vortices on a plane, a realization for a (1+1)-dimensional directed polymer in random media. For this we use magnetic force microscopy to image and manipulate individual vortices trapped on a twin boundary in YBa2Cu3O7-δ near optimal doping. We find that when we drag a vortex with the magnetic tip, it moves in a series of jumps. As theory suggests, the jump-size distribution does not depend on the applied force and is consistent with power-law behavior. The measured power is much larger than widely accepted theoretical calculations.

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Disorder-induced power-law response of a superconducting vortex on a plane

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