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Peer-reviewedCC BYNano letters

Interplay of Meissner Currents and Magnetic Vortices in NbSe2 Probed by Tunneling Spectroscopy.

  • Maya Klang1,2
  • Shahar Simon1,2
  • Oded Millo1,2
  • Hadar Steinberg1,2
  1. 1The Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem91904, Israel.
  2. 2The Center for Nanoscience and Nanotechnology, Hebrew University, Jerusalem91904, Israel.
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Abstract

Mapping edge supercurrents in thin superconducting films and resolving the Meissner and vortex contributions provide important insights into the nature of type II two-dimensional superconductors. Here, we perform tunneling spectroscopy measurements on thin exfoliated NbSe2 flakes to probe Doppler shifts of the quasiparticle density of states and extract the current density at the flake edge with a resolution of 5-10 μA/μm. We observe a distinct hysteretic response of the tunneling spectra under small out-of-plane magnetic fields, allowing a deconvolution of the Meissner and vortex current contributions. The isolated contributions of Meissner currents to the Doppler shift are corroborated using a numerical solution of the London equations. Our results demonstrate that tunneling devices are highly effective for monitoring non-equilibrium and dynamical effects in thin superconducting films.

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Cite

BibTeXRIS
BibTeX
@article{klang2026interplay,
  title = {{Interplay of Meissner Currents and Magnetic Vortices in NbSe2 Probed by Tunneling Spectroscopy.}},
  author = {Maya Klang and Shahar Simon and Oded Millo and Hadar Steinberg},
  journal = {Nano letters},
  year = {2026},
  month = sep,
  doi = {10.1021/acs.nanolett.6c02651},
  url = {https://europepmc.org/article/MED/42916856},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Interplay of Meissner Currents and Magnetic Vortices in NbSe2 Probed by Tunneling Spectroscopy.
AU  - Maya Klang
AU  - Shahar Simon
AU  - Oded Millo
AU  - Hadar Steinberg
PY  - 2026
DA  - 2026/09/01
JO  - Nano letters
DO  - 10.1021/acs.nanolett.6c02651
UR  - https://europepmc.org/article/MED/42916856
AB  - Mapping edge supercurrents in thin superconducting films and resolving the Meissner and vortex contributions provide important insights into the nature of type II two-dimensional superconductors. Here, we perform tunneling spectroscopy measurements on thin exfoliated NbSe2 flakes to probe Doppler shifts of the quasiparticle density of states and extract the current density at the flake edge with a resolution of 5-10 μA/μm. We observe a distinct hysteretic response of the tunneling spectra under small out-of-plane magnetic fields, allowing a deconvolution of the Meissner and vortex current contributions. The isolated contributions of Meissner currents to the Doppler shift are corroborated using a numerical solution of the London equations. Our results demonstrate that tunneling devices are highly effective for monitoring non-equilibrium and dynamical effects in thin superconducting films.
SN  - 1530-6984
SN  - 1530-6992
ER  -