Publikation:

Observation of a New Mechanism of Spontaneous Generation of Magnetic Flux in a Superconductor

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paper_342_PRL_biehler_runge_leidere2005.pdf
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2005

Autor:innen

Maniv, Ariel
Polturak, Emil
Koren, Gad
Bliokh, Yuri
Biehler, Björn
Shapiro, Boris
Shapiro, Irena

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-27253
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https://doi.org/10.1103/PhysRevLett.94.247005
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Attribution-NonCommercial-NoDerivs 2.0 Generic

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Physical Review Letters. 2005, 94, 247005. Available under: doi: 10.1103/PhysRevLett.94.247005

Zusammenfassung

We report the discovery of a new mechanism of spontaneous generation of a magnetic flux in a superconductor cooled through Tc. Values of the spontaneous flux appear random from one cooldown to the next, following a Gaussian distribution. The width of the distribution increases with the size of the temperature gradient in the sample. Our observations appear inconsistent with the well-known mechanisms of flux generation. The dependence on the temperature gradient suggests that the flux may be generated through an instability of the thermoelectric superconducting-normal quasiparticle counterflow.

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530 Physik

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ISO 690MANIV, Ariel, Emil POLTURAK, Gad KOREN, Yuri BLIOKH, Björn BIEHLER, Bernd-Uwe RUNGE, Paul LEIDERER, Boris SHAPIRO, Irena SHAPIRO, 2005. Observation of a New Mechanism of Spontaneous Generation of Magnetic Flux in a Superconductor. In: Physical Review Letters. 2005, 94, 247005. Available under: doi: 10.1103/PhysRevLett.94.247005
BibTex
@article{Maniv2005Obser-4978,
  year={2005},
  doi={10.1103/PhysRevLett.94.247005},
  title={Observation of a New Mechanism of Spontaneous Generation of Magnetic Flux in a Superconductor},
  volume={94},
  journal={Physical Review Letters},
  author={Maniv, Ariel and Polturak, Emil and Koren, Gad and Bliokh, Yuri and Biehler, Björn and Runge, Bernd-Uwe and Leiderer, Paul and Shapiro, Boris and Shapiro, Irena},
  note={Article Number: 247005}
}
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