Charge-induced vortex lattice instability

A. M. Mounce; S. Oh; S. Mukhopadhyay; W. P. Halperin; A. P. Reyes; P. L. Kuhns; K. Fujita; M. Ishikado; S. Uchida

doi:10.1038/nphys1835

Charge-induced vortex lattice instability

A. M. Mounce, S. Oh, S. Mukhopadhyay, W. P. Halperin, A. P. Reyes, P. L. Kuhns, K. Fujita, M. Ishikado, S. Uchida

Physics and Astronomy

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

5 Scopus citations

Abstract

It has been predicted that superconducting vortices should be electrically charged and that this effect is particularly enhanced for high-temperature superconductors ^1,2 . Hall effect and nuclear magnetic resonance (NMR) experiments ⁴ suggest the existence of charge accumulation in the vortex core, but the effects are small and the interpretation controversial. Here we show that the Abrikosov vortex lattice, characteristic of the mixed state of superconductors, will become unstable at a sufficiently high magnetic field if there is charge trapped on the vortex core. Our NMR measurements of the magnetic fields generated by vortices in Bi ₂ Sr ₂ CaCu ₂ O _8+y single crystals ₅ provide evidence for an electrostatically driven vortex lattice reconstruction with the magnitude of charge on each vortex pancake of ̃2× 10 ^-3 e, depending on doping, in line with theoretical estimates ^1,6 .

Original language	English (US)
Pages (from-to)	125-128
Number of pages	4
Journal	Nature Physics
Volume	7
Issue number	2
DOIs	https://doi.org/10.1038/nphys1835
State	Published - Feb 2011

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Physics and Astronomy(all)

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10.1038/nphys1835

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@article{6cc44fac4fca49fbbfdec4f3ab8b3d04,

title = "Charge-induced vortex lattice instability",

abstract = " It has been predicted that superconducting vortices should be electrically charged and that this effect is particularly enhanced for high-temperature superconductors 1,2 . Hall effect and nuclear magnetic resonance (NMR) experiments 4 suggest the existence of charge accumulation in the vortex core, but the effects are small and the interpretation controversial. Here we show that the Abrikosov vortex lattice, characteristic of the mixed state of superconductors, will become unstable at a sufficiently high magnetic field if there is charge trapped on the vortex core. Our NMR measurements of the magnetic fields generated by vortices in Bi 2 Sr 2 CaCu 2 O 8+y single crystals 5 provide evidence for an electrostatically driven vortex lattice reconstruction with the magnitude of charge on each vortex pancake of{\~ }2× 10 -3 e, depending on doping, in line with theoretical estimates 1,6 .",

author = "Mounce, {A. M.} and S. Oh and S. Mukhopadhyay and Halperin, {W. P.} and Reyes, {A. P.} and Kuhns, {P. L.} and K. Fujita and M. Ishikado and S. Uchida",

note = "Funding Information: We thank E. H. Brandt, L. N. Bulaevskii, C. A. Collett, M. Eschrig, M. R. Eskildsen, W. J. Gannon, A. Gurevich, A. E. Koshelev, J. Li, V. F. Mitrovi{\'c}, J. Pollanen and J. A. Sauls for helpful discussions. This work was supported by the Department of Energy, contract DE-FG02-05ER46248, and the National High Magnetic Field Laboratory, the National Science Foundation and the State of Florida.",

year = "2011",

month = feb,

doi = "10.1038/nphys1835",

language = "English (US)",

volume = "7",

pages = "125--128",

journal = "Nature Physics",

issn = "1745-2473",

publisher = "Nature Publishing Group",

number = "2",

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T1 - Charge-induced vortex lattice instability

AU - Mounce, A. M.

AU - Oh, S.

AU - Mukhopadhyay, S.

AU - Halperin, W. P.

AU - Reyes, A. P.

AU - Kuhns, P. L.

AU - Fujita, K.

AU - Ishikado, M.

AU - Uchida, S.

N1 - Funding Information: We thank E. H. Brandt, L. N. Bulaevskii, C. A. Collett, M. Eschrig, M. R. Eskildsen, W. J. Gannon, A. Gurevich, A. E. Koshelev, J. Li, V. F. Mitrović, J. Pollanen and J. A. Sauls for helpful discussions. This work was supported by the Department of Energy, contract DE-FG02-05ER46248, and the National High Magnetic Field Laboratory, the National Science Foundation and the State of Florida.

PY - 2011/2

Y1 - 2011/2

N2 - It has been predicted that superconducting vortices should be electrically charged and that this effect is particularly enhanced for high-temperature superconductors 1,2 . Hall effect and nuclear magnetic resonance (NMR) experiments 4 suggest the existence of charge accumulation in the vortex core, but the effects are small and the interpretation controversial. Here we show that the Abrikosov vortex lattice, characteristic of the mixed state of superconductors, will become unstable at a sufficiently high magnetic field if there is charge trapped on the vortex core. Our NMR measurements of the magnetic fields generated by vortices in Bi 2 Sr 2 CaCu 2 O 8+y single crystals 5 provide evidence for an electrostatically driven vortex lattice reconstruction with the magnitude of charge on each vortex pancake of ̃2× 10 -3 e, depending on doping, in line with theoretical estimates 1,6 .

AB - It has been predicted that superconducting vortices should be electrically charged and that this effect is particularly enhanced for high-temperature superconductors 1,2 . Hall effect and nuclear magnetic resonance (NMR) experiments 4 suggest the existence of charge accumulation in the vortex core, but the effects are small and the interpretation controversial. Here we show that the Abrikosov vortex lattice, characteristic of the mixed state of superconductors, will become unstable at a sufficiently high magnetic field if there is charge trapped on the vortex core. Our NMR measurements of the magnetic fields generated by vortices in Bi 2 Sr 2 CaCu 2 O 8+y single crystals 5 provide evidence for an electrostatically driven vortex lattice reconstruction with the magnitude of charge on each vortex pancake of ̃2× 10 -3 e, depending on doping, in line with theoretical estimates 1,6 .

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Charge-induced vortex lattice instability

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