Title: Observing vortex motion on NbSe2 with STM
Authors: Timmermans, Matias ×
Samuely, T
Raes, B
Van de Vondel, Joris
Moshchalkov, Victor #
Issue Date: 2014
Publisher: North-Holland
Series Title: Physica C, Superconductivity vol:503 pages:154-157
Abstract: The resistive state of a superconductor in magnetic field has been thoroughly investigated both by experiments
and by theoretical simulations. However, a local study of vortex dynamics inducing dissipation
was performed only recently by means of scanning Hall probe microscopy (SHPM). In this work we
extend this idea and we visualize the oscillatory motion of vortices in NbSe2 using scanning tunneling
microscopy (STM). In contrast to previous experiments, sensitive to magnetic fields, the STM probes
the local density of states and the local topography. Its ability to resolve vortices is limited by the coherence
length. In the case of type-II superconductors this is expected to resolve vortex motion beyond the
detection limit of the SHPM. We experimentally verify the enhanced sensitivity by observing vortex
motion in a very dense vortex lattice (H = 600 mT)
ISSN: 0921-4534
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physics and Astronomy - miscellaneous
Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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