Parallel magnetic field suppresses dissipation in superconducting nanostrips

Yong Lei Wang, Andreas Glatz, Gregory J. Kimmel, Igor Aronson, Laxman R. Thoutam, Zhi Li Xiao, Golibjon R. Berdiyorov, François M. Peeters, George W. Crabtree, Wai Kwong Kwok

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The motion of Abrikosov vortices in type-II superconductors results in a finite resistance in the presence of an applied electric current. Elimination or reduction of the resistance via immobilization of vortices is the “holy grail” of superconductivity research. Common wisdom dictates that an increase in the magnetic field escalates the loss of energy since the number of vortices increases. Here we show that this is no longer true if the magnetic field and the current are applied parallel to each other. Our experimental studies on the resistive behavior of a superconducting Mo0.79Ge0.21 nanostrip reveal the emergence of a dissipative state with increasing magnetic field, followed by a pronounced resistance drop, signifying a reentrance to the superconducting state. Large-scale simulations of the 3D time-dependent Ginzburg–Landau model indicate that the intermediate resistive state is due to an unwinding of twisted vortices. When the magnetic field increases, this instability is suppressed due to a better accommodation of the vortex lattice to the pinning configuration. Our findings show that magnetic field and geometrical confinement can suppress the dissipation induced by vortex motion and thus radically improve the performance of superconducting materials.

Original languageEnglish (US)
Pages (from-to)E10274-E10280
JournalProceedings of the National Academy of Sciences of the United States of America
Volume114
Issue number48
DOIs
StatePublished - Nov 28 2017

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Magnetic Fields
Immobilization
Research
Superconductivity

All Science Journal Classification (ASJC) codes

  • General

Cite this

Wang, Yong Lei ; Glatz, Andreas ; Kimmel, Gregory J. ; Aronson, Igor ; Thoutam, Laxman R. ; Xiao, Zhi Li ; Berdiyorov, Golibjon R. ; Peeters, François M. ; Crabtree, George W. ; Kwok, Wai Kwong. / Parallel magnetic field suppresses dissipation in superconducting nanostrips. In: Proceedings of the National Academy of Sciences of the United States of America. 2017 ; Vol. 114, No. 48. pp. E10274-E10280.
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abstract = "The motion of Abrikosov vortices in type-II superconductors results in a finite resistance in the presence of an applied electric current. Elimination or reduction of the resistance via immobilization of vortices is the “holy grail” of superconductivity research. Common wisdom dictates that an increase in the magnetic field escalates the loss of energy since the number of vortices increases. Here we show that this is no longer true if the magnetic field and the current are applied parallel to each other. Our experimental studies on the resistive behavior of a superconducting Mo0.79Ge0.21 nanostrip reveal the emergence of a dissipative state with increasing magnetic field, followed by a pronounced resistance drop, signifying a reentrance to the superconducting state. Large-scale simulations of the 3D time-dependent Ginzburg–Landau model indicate that the intermediate resistive state is due to an unwinding of twisted vortices. When the magnetic field increases, this instability is suppressed due to a better accommodation of the vortex lattice to the pinning configuration. Our findings show that magnetic field and geometrical confinement can suppress the dissipation induced by vortex motion and thus radically improve the performance of superconducting materials.",
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Wang, YL, Glatz, A, Kimmel, GJ, Aronson, I, Thoutam, LR, Xiao, ZL, Berdiyorov, GR, Peeters, FM, Crabtree, GW & Kwok, WK 2017, 'Parallel magnetic field suppresses dissipation in superconducting nanostrips', Proceedings of the National Academy of Sciences of the United States of America, vol. 114, no. 48, pp. E10274-E10280. https://doi.org/10.1073/pnas.1619550114

Parallel magnetic field suppresses dissipation in superconducting nanostrips. / Wang, Yong Lei; Glatz, Andreas; Kimmel, Gregory J.; Aronson, Igor; Thoutam, Laxman R.; Xiao, Zhi Li; Berdiyorov, Golibjon R.; Peeters, François M.; Crabtree, George W.; Kwok, Wai Kwong.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 114, No. 48, 28.11.2017, p. E10274-E10280.

Research output: Contribution to journalArticle

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AU - Wang, Yong Lei

AU - Glatz, Andreas

AU - Kimmel, Gregory J.

AU - Aronson, Igor

AU - Thoutam, Laxman R.

AU - Xiao, Zhi Li

AU - Berdiyorov, Golibjon R.

AU - Peeters, François M.

AU - Crabtree, George W.

AU - Kwok, Wai Kwong

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N2 - The motion of Abrikosov vortices in type-II superconductors results in a finite resistance in the presence of an applied electric current. Elimination or reduction of the resistance via immobilization of vortices is the “holy grail” of superconductivity research. Common wisdom dictates that an increase in the magnetic field escalates the loss of energy since the number of vortices increases. Here we show that this is no longer true if the magnetic field and the current are applied parallel to each other. Our experimental studies on the resistive behavior of a superconducting Mo0.79Ge0.21 nanostrip reveal the emergence of a dissipative state with increasing magnetic field, followed by a pronounced resistance drop, signifying a reentrance to the superconducting state. Large-scale simulations of the 3D time-dependent Ginzburg–Landau model indicate that the intermediate resistive state is due to an unwinding of twisted vortices. When the magnetic field increases, this instability is suppressed due to a better accommodation of the vortex lattice to the pinning configuration. Our findings show that magnetic field and geometrical confinement can suppress the dissipation induced by vortex motion and thus radically improve the performance of superconducting materials.

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