Measurement of the vortex-core radius by scanning tunneling microscopy

U. Hartmann; Alexandre Avraamovitch Golubov; T. Drechsler; M. Yu Kupriyanov; C. Heiden

doi:10.1016/0921-4526(94)90523-1

Measurement of the vortex-core radius by scanning tunneling microscopy

U. Hartmann, Alexandre Avraamovitch Golubov, T. Drechsler, M. Yu Kupriyanov, C. Heiden

Faculty of Science and Technology

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Abstract

Using a scanning tunneling microscope operated in a spectroscopic mode we imaged flux-line lattices in niobium diselenide at various external magnetic fields. From the evaluation of a large number of tunneling-current profiles taken across the individual vortices we deduced the dependence of the vortex-code radius on the applied magnetic field. It was found that the core radius shows a pronounced decrease with increasing field, even for H/Hc2<<1. This behavior is qualitatively well characterized by self-consistent solutions of the Usadel equations.

Original language	Undefined
Pages (from-to)	387-388
Journal	Physica B
Volume	194-19
Issue number	1-3
DOIs	https://doi.org/10.1016/0921-4526(94)90523-1
Publication status	Published - 1994

Keywords

IR-57384

Access to Document

10.1016/0921-4526(94)90523-1

Hartmann94measurement

Cite this

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title = "Measurement of the vortex-core radius by scanning tunneling microscopy",

abstract = "Using a scanning tunneling microscope operated in a spectroscopic mode we imaged flux-line lattices in niobium diselenide at various external magnetic fields. From the evaluation of a large number of tunneling-current profiles taken across the individual vortices we deduced the dependence of the vortex-code radius on the applied magnetic field. It was found that the core radius shows a pronounced decrease with increasing field, even for H/Hc2<<1. This behavior is qualitatively well characterized by self-consistent solutions of the Usadel equations.",

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author = "U. Hartmann and Golubov, {Alexandre Avraamovitch} and T. Drechsler and Kupriyanov, {M. Yu} and C. Heiden",

year = "1994",

doi = "10.1016/0921-4526(94)90523-1",

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pages = "387--388",

journal = "Physica B",

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T1 - Measurement of the vortex-core radius by scanning tunneling microscopy

AU - Hartmann, U.

AU - Golubov, Alexandre Avraamovitch

AU - Drechsler, T.

AU - Kupriyanov, M. Yu

AU - Heiden, C.

PY - 1994

Y1 - 1994

N2 - Using a scanning tunneling microscope operated in a spectroscopic mode we imaged flux-line lattices in niobium diselenide at various external magnetic fields. From the evaluation of a large number of tunneling-current profiles taken across the individual vortices we deduced the dependence of the vortex-code radius on the applied magnetic field. It was found that the core radius shows a pronounced decrease with increasing field, even for H/Hc2<<1. This behavior is qualitatively well characterized by self-consistent solutions of the Usadel equations.

AB - Using a scanning tunneling microscope operated in a spectroscopic mode we imaged flux-line lattices in niobium diselenide at various external magnetic fields. From the evaluation of a large number of tunneling-current profiles taken across the individual vortices we deduced the dependence of the vortex-code radius on the applied magnetic field. It was found that the core radius shows a pronounced decrease with increasing field, even for H/Hc2<<1. This behavior is qualitatively well characterized by self-consistent solutions of the Usadel equations.

KW - IR-57384

U2 - 10.1016/0921-4526(94)90523-1

DO - 10.1016/0921-4526(94)90523-1

M3 - Article

VL - 194-19

SP - 387

EP - 388

JO - Physica B

JF - Physica B

SN - 0921-4526

IS - 1-3

ER -