Flip-flopping fractional flux quanta

T. Ortlepp, T. Ortlepp, A. Ariando, O. Mielke, C.J.M. Verwijs, K.F.K. Foo, Horst Rogalla, F.H. Uhlmann, Johannes W.M. Hilgenkamp

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Abstract

The d-wave pairing symmetry in high–critical temperature superconductors makes it possible to realize superconducting rings with built-in phase shifts. Such rings have a twofold degenerate ground state that is characterized by the spontaneous generation of fractional magnetic flux quanta with either up or down polarity. We have incorporated phase–biased superconducting rings in a logic circuit, a flip-flop, in which the fractional flux polarity is controllably toggled by applying single flux quantum pulses at the input channel. The integration of p rings into conventional rapid single flux quantum logic as natural two-state devices should alleviate the need for bias current lines, improve device symmetry, and enhance the operation margins
Original languageUndefined
Pages (from-to)1495-
JournalScience
Volume312
Issue number5779
DOIs
Publication statusPublished - 2006

Keywords

  • IR-74123
  • METIS-233514

Cite this

Ortlepp, T., Ortlepp, T., Ariando, A., Mielke, O., Verwijs, C. J. M., Foo, K. F. K., ... Hilgenkamp, J. W. M. (2006). Flip-flopping fractional flux quanta. Science, 312(5779), 1495-. https://doi.org/10.1126/science.1126041
Ortlepp, T. ; Ortlepp, T. ; Ariando, A. ; Mielke, O. ; Verwijs, C.J.M. ; Foo, K.F.K. ; Rogalla, Horst ; Uhlmann, F.H. ; Hilgenkamp, Johannes W.M. / Flip-flopping fractional flux quanta. In: Science. 2006 ; Vol. 312, No. 5779. pp. 1495-.
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title = "Flip-flopping fractional flux quanta",
abstract = "The d-wave pairing symmetry in high–critical temperature superconductors makes it possible to realize superconducting rings with built-in phase shifts. Such rings have a twofold degenerate ground state that is characterized by the spontaneous generation of fractional magnetic flux quanta with either up or down polarity. We have incorporated phase–biased superconducting rings in a logic circuit, a flip-flop, in which the fractional flux polarity is controllably toggled by applying single flux quantum pulses at the input channel. The integration of p rings into conventional rapid single flux quantum logic as natural two-state devices should alleviate the need for bias current lines, improve device symmetry, and enhance the operation margins",
keywords = "IR-74123, METIS-233514",
author = "T. Ortlepp and T. Ortlepp and A. Ariando and O. Mielke and C.J.M. Verwijs and K.F.K. Foo and Horst Rogalla and F.H. Uhlmann and Hilgenkamp, {Johannes W.M.}",
note = "Originally published in Science Express on 20 April 2006",
year = "2006",
doi = "10.1126/science.1126041",
language = "Undefined",
volume = "312",
pages = "1495--",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
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Ortlepp, T, Ortlepp, T, Ariando, A, Mielke, O, Verwijs, CJM, Foo, KFK, Rogalla, H, Uhlmann, FH & Hilgenkamp, JWM 2006, 'Flip-flopping fractional flux quanta', Science, vol. 312, no. 5779, pp. 1495-. https://doi.org/10.1126/science.1126041

Flip-flopping fractional flux quanta. / Ortlepp, T.; Ortlepp, T.; Ariando, A.; Mielke, O.; Verwijs, C.J.M.; Foo, K.F.K.; Rogalla, Horst; Uhlmann, F.H.; Hilgenkamp, Johannes W.M.

In: Science, Vol. 312, No. 5779, 2006, p. 1495-.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Flip-flopping fractional flux quanta

AU - Ortlepp, T.

AU - Ortlepp, T.

AU - Ariando, A.

AU - Mielke, O.

AU - Verwijs, C.J.M.

AU - Foo, K.F.K.

AU - Rogalla, Horst

AU - Uhlmann, F.H.

AU - Hilgenkamp, Johannes W.M.

N1 - Originally published in Science Express on 20 April 2006

PY - 2006

Y1 - 2006

N2 - The d-wave pairing symmetry in high–critical temperature superconductors makes it possible to realize superconducting rings with built-in phase shifts. Such rings have a twofold degenerate ground state that is characterized by the spontaneous generation of fractional magnetic flux quanta with either up or down polarity. We have incorporated phase–biased superconducting rings in a logic circuit, a flip-flop, in which the fractional flux polarity is controllably toggled by applying single flux quantum pulses at the input channel. The integration of p rings into conventional rapid single flux quantum logic as natural two-state devices should alleviate the need for bias current lines, improve device symmetry, and enhance the operation margins

AB - The d-wave pairing symmetry in high–critical temperature superconductors makes it possible to realize superconducting rings with built-in phase shifts. Such rings have a twofold degenerate ground state that is characterized by the spontaneous generation of fractional magnetic flux quanta with either up or down polarity. We have incorporated phase–biased superconducting rings in a logic circuit, a flip-flop, in which the fractional flux polarity is controllably toggled by applying single flux quantum pulses at the input channel. The integration of p rings into conventional rapid single flux quantum logic as natural two-state devices should alleviate the need for bias current lines, improve device symmetry, and enhance the operation margins

KW - IR-74123

KW - METIS-233514

U2 - 10.1126/science.1126041

DO - 10.1126/science.1126041

M3 - Article

VL - 312

SP - 1495-

JO - Science

JF - Science

SN - 0036-8075

IS - 5779

ER -

Ortlepp T, Ortlepp T, Ariando A, Mielke O, Verwijs CJM, Foo KFK et al. Flip-flopping fractional flux quanta. Science. 2006;312(5779):1495-. https://doi.org/10.1126/science.1126041