Local studies of vortex instabilities and memory effects in NbSe2

Y. Paltiel; E. Zeldov; Y. N. Myasoedov; S. Bhattacharya; M. J. Higgins; E. Y. Andrei; Z. L. Xiao; H. Shtrikman; P. L. Gammel; D. J. Bishop

doi:10.1016/S0921-4534(00)01122-9

Local studies of vortex instabilities and memory effects in NbSe₂

Y. Paltiel^*, E. Zeldov, Y. N. Myasoedov, S. Bhattacharya, M. J. Higgins, E. Y. Andrei, Z. L. Xiao, H. Shtrikman, P. L. Gammel, D. J. Bishop

^*Corresponding author for this work

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

Abstract

Recent studies have shown a number of surprising vortex dynamics phenomena which include: low frequency noise, slow voltage oscillations, history dependent dynamic response, memory of the direction, amplitude, and frequency of the previously applied current, suppression of the ac response by a small dc bias, and a strong frequency dependence. These phenomena are incompatible with the current understanding of bulk vortex dynamics. We propose a generic mechanism in terms of the competition between the injection of a disordered vortex phase through the surface barriers, and the annealing of this metastable disorder by the transport current. The model is confirmed by investigating the current distribution across 2H-NbSe₂ crystals using arrays of Hall sensors.

Original language	American English
Pages (from-to)	1221-1222
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	341-348
DOIs	https://doi.org/10.1016/S0921-4534(00)01122-9
State	Published - 2000
Externally published	Yes

Bibliographical note

Funding Information:
This work was supported by the Israel Science Foundation - Center of Excellence Program, by the German-Israeli Foundation GIF, and by NSF-DMR-9705389.

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10.1016/S0921-4534(00)01122-9

Cite this

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title = "Local studies of vortex instabilities and memory effects in NbSe2",

abstract = "Recent studies have shown a number of surprising vortex dynamics phenomena which include: low frequency noise, slow voltage oscillations, history dependent dynamic response, memory of the direction, amplitude, and frequency of the previously applied current, suppression of the ac response by a small dc bias, and a strong frequency dependence. These phenomena are incompatible with the current understanding of bulk vortex dynamics. We propose a generic mechanism in terms of the competition between the injection of a disordered vortex phase through the surface barriers, and the annealing of this metastable disorder by the transport current. The model is confirmed by investigating the current distribution across 2H-NbSe2 crystals using arrays of Hall sensors.",

author = "Y. Paltiel and E. Zeldov and Myasoedov, {Y. N.} and S. Bhattacharya and Higgins, {M. J.} and Andrei, {E. Y.} and Xiao, {Z. L.} and H. Shtrikman and Gammel, {P. L.} and Bishop, {D. J.}",

note = "Funding Information: This work was supported by the Israel Science Foundation - Center of Excellence Program, by the German-Israeli Foundation GIF, and by NSF-DMR-9705389.",

year = "2000",

doi = "10.1016/S0921-4534(00)01122-9",

language = "American English",

volume = "341-348",

pages = "1221--1222",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

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TY - JOUR

T1 - Local studies of vortex instabilities and memory effects in NbSe2

AU - Paltiel, Y.

AU - Zeldov, E.

AU - Myasoedov, Y. N.

AU - Bhattacharya, S.

AU - Higgins, M. J.

AU - Andrei, E. Y.

AU - Xiao, Z. L.

AU - Shtrikman, H.

AU - Gammel, P. L.

AU - Bishop, D. J.

N1 - Funding Information: This work was supported by the Israel Science Foundation - Center of Excellence Program, by the German-Israeli Foundation GIF, and by NSF-DMR-9705389.

PY - 2000

Y1 - 2000

N2 - Recent studies have shown a number of surprising vortex dynamics phenomena which include: low frequency noise, slow voltage oscillations, history dependent dynamic response, memory of the direction, amplitude, and frequency of the previously applied current, suppression of the ac response by a small dc bias, and a strong frequency dependence. These phenomena are incompatible with the current understanding of bulk vortex dynamics. We propose a generic mechanism in terms of the competition between the injection of a disordered vortex phase through the surface barriers, and the annealing of this metastable disorder by the transport current. The model is confirmed by investigating the current distribution across 2H-NbSe2 crystals using arrays of Hall sensors.

AB - Recent studies have shown a number of surprising vortex dynamics phenomena which include: low frequency noise, slow voltage oscillations, history dependent dynamic response, memory of the direction, amplitude, and frequency of the previously applied current, suppression of the ac response by a small dc bias, and a strong frequency dependence. These phenomena are incompatible with the current understanding of bulk vortex dynamics. We propose a generic mechanism in terms of the competition between the injection of a disordered vortex phase through the surface barriers, and the annealing of this metastable disorder by the transport current. The model is confirmed by investigating the current distribution across 2H-NbSe2 crystals using arrays of Hall sensors.

UR - http://www.scopus.com/inward/record.url?scp=0343832317&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(00)01122-9

DO - 10.1016/S0921-4534(00)01122-9

M3 - Article

AN - SCOPUS:0343832317

SN - 0921-4534

VL - 341-348

SP - 1221

EP - 1222

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

ER -

Local studies of vortex instabilities and memory effects in NbSe₂

Abstract

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