Quantum tunneling of vortices in Bi-2212 with randomly oriented columnar defects

J. R. Thompson; J. G. Ossandon; L. Krusin-Elbaum; K. J. Song; D. K. Christen; J. L. Ullmann

doi:10.1016/S0921-4526(99)02196-1

Quantum tunneling of vortices in Bi-2212 with randomly oriented columnar defects

J. R. Thompson^*
, J. G. Ossandon
, L. Krusin-Elbaum
, K. J. Song
, D. K. Christen
, J. L. Ullmann

^*Corresponding author for this work

Physics Education

Oak Ridge National Laboratory
University of Tennessee
Universidad de Talca
IBM
Los Alamos National Laboratory

Research output: Contribution to journal › Journal article › peer-review

1 Scopus citations

Abstract

Vortex pinning in textured Bi-2212/Ag superconducting tapes was enhanced by randomly oriented columnar defects, formed by GeV proton-induced fission of Bi-nuclei. Studies of J versus time in the range 2-40 K shows that thermally activated current decay decreased greatly. However, temperature-independent quantum tunneling of vortices considerably limits J and its temporal stability for a significant fraction of the finite-J_c region.

Original language	English
Pages (from-to)	877-878
Number of pages	2
Journal	Physica B: Physics of Condensed Matter
Volume	284-288
Issue number	PART I
DOIs	https://doi.org/10.1016/S0921-4526(99)02196-1
State	Published - 2000

Keywords

Bi-2212
Columnar defects
Flux creep
Irradiation
Quantum vortex tunneling

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10.1016/S0921-4526(99)02196-1

Cite this

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title = "Quantum tunneling of vortices in Bi-2212 with randomly oriented columnar defects",

abstract = "Vortex pinning in textured Bi-2212/Ag superconducting tapes was enhanced by randomly oriented columnar defects, formed by GeV proton-induced fission of Bi-nuclei. Studies of J versus time in the range 2-40 K shows that thermally activated current decay decreased greatly. However, temperature-independent quantum tunneling of vortices considerably limits J and its temporal stability for a significant fraction of the finite-Jc region.",

keywords = "Bi-2212, Columnar defects, Flux creep, Irradiation, Quantum vortex tunneling",

author = "Thompson, \{J. R.\} and Ossandon, \{J. G.\} and L. Krusin-Elbaum and Song, \{K. J.\} and Christen, \{D. K.\} and Ullmann, \{J. L.\}",

year = "2000",

doi = "10.1016/S0921-4526(99)02196-1",

language = "English",

volume = "284-288",

pages = "877--878",

journal = "Physica B: Physics of Condensed Matter",

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T1 - Quantum tunneling of vortices in Bi-2212 with randomly oriented columnar defects

AU - Thompson, J. R.

AU - Ossandon, J. G.

AU - Krusin-Elbaum, L.

AU - Song, K. J.

AU - Christen, D. K.

AU - Ullmann, J. L.

PY - 2000

Y1 - 2000

N2 - Vortex pinning in textured Bi-2212/Ag superconducting tapes was enhanced by randomly oriented columnar defects, formed by GeV proton-induced fission of Bi-nuclei. Studies of J versus time in the range 2-40 K shows that thermally activated current decay decreased greatly. However, temperature-independent quantum tunneling of vortices considerably limits J and its temporal stability for a significant fraction of the finite-Jc region.

AB - Vortex pinning in textured Bi-2212/Ag superconducting tapes was enhanced by randomly oriented columnar defects, formed by GeV proton-induced fission of Bi-nuclei. Studies of J versus time in the range 2-40 K shows that thermally activated current decay decreased greatly. However, temperature-independent quantum tunneling of vortices considerably limits J and its temporal stability for a significant fraction of the finite-Jc region.

KW - Bi-2212

KW - Columnar defects

KW - Flux creep

KW - Irradiation

KW - Quantum vortex tunneling

UR - https://www.scopus.com/pages/publications/0033722533

U2 - 10.1016/S0921-4526(99)02196-1

DO - 10.1016/S0921-4526(99)02196-1

M3 - Journal article

AN - SCOPUS:0033722533

SN - 0921-4526

VL - 284-288

SP - 877

EP - 878

JO - Physica B: Physics of Condensed Matter

JF - Physica B: Physics of Condensed Matter

IS - PART I

ER -

Quantum tunneling of vortices in Bi-2212 with randomly oriented columnar defects

Abstract

Keywords

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