Spatial inhomogeneities in the energy response of a tunnel junction detector due to penetration of Abrikosov vortices

J. B. Le Grand; J. Martin; R. Gross; R. P. Huebener; A. W. Hamster; G. C.S. Brons; D. J. Adelerhof; J. Flokstra; P. A.J. De Korte

doi:10.1016/0168-9002(95)01116-1

Spatial inhomogeneities in the energy response of a tunnel junction detector due to penetration of Abrikosov vortices

J. B. Le Grand, J. Martin, R. Gross, R. P. Huebener, A. W. Hamster, G. C.S. Brons, D. J. Adelerhof, J. Flokstra, P. A.J. De Korte

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2 Scopus citations

Abstract

For the application of superconductive tunnel junctions (STJs) as high resolution X-ray detectors the homogeneity of the detector response is of utmost importance. In this article it is shown how this homogeneity is degraded by the penetration of Abrikosov vortices (AVs) into the junction electrodes. These AVs may exist because of small misalignments in the parallel magnetic field, which is applied to suppress the Josephson current and Fiske steps. By means of Low Temperature Scanning Electron Microscopy (LTSEM) the response of the tunnel junction to local energy deposition is mapped and found to be reduced in areas where AVs are present. On the basis of these experiments the threshold perpendicular field at which vortices start to penetrate the junction is derived.

Original language	English
Pages (from-to)	131-132
Number of pages	2
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	370
Issue number	1
DOIs	https://doi.org/10.1016/0168-9002(95)01116-1
State	Published - 11 Feb 1996
Externally published	Yes

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Le Grand, J. B., Martin, J., Gross, R., Huebener, R. P., Hamster, A. W., Brons, G. C. S., Adelerhof, D. J., Flokstra, J., & De Korte, P. A. J. (1996). Spatial inhomogeneities in the energy response of a tunnel junction detector due to penetration of Abrikosov vortices. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 370(1), 131-132. https://doi.org/10.1016/0168-9002(95)01116-1

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title = "Spatial inhomogeneities in the energy response of a tunnel junction detector due to penetration of Abrikosov vortices",

abstract = "For the application of superconductive tunnel junctions (STJs) as high resolution X-ray detectors the homogeneity of the detector response is of utmost importance. In this article it is shown how this homogeneity is degraded by the penetration of Abrikosov vortices (AVs) into the junction electrodes. These AVs may exist because of small misalignments in the parallel magnetic field, which is applied to suppress the Josephson current and Fiske steps. By means of Low Temperature Scanning Electron Microscopy (LTSEM) the response of the tunnel junction to local energy deposition is mapped and found to be reduced in areas where AVs are present. On the basis of these experiments the threshold perpendicular field at which vortices start to penetrate the junction is derived.",

author = "{Le Grand}, {J. B.} and J. Martin and R. Gross and Huebener, {R. P.} and Hamster, {A. W.} and Brons, {G. C.S.} and Adelerhof, {D. J.} and J. Flokstra and {De Korte}, {P. A.J.}",

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Le Grand, JB, Martin, J, Gross, R, Huebener, RP, Hamster, AW, Brons, GCS, Adelerhof, DJ, Flokstra, J & De Korte, PAJ 1996, 'Spatial inhomogeneities in the energy response of a tunnel junction detector due to penetration of Abrikosov vortices', Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 370, no. 1, pp. 131-132. https://doi.org/10.1016/0168-9002(95)01116-1

Spatial inhomogeneities in the energy response of a tunnel junction detector due to penetration of Abrikosov vortices. / Le Grand, J. B.; Martin, J.; Gross, R. et al.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 370, No. 1, 11.02.1996, p. 131-132.

Research output: Contribution to journal › Article › peer-review

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AB - For the application of superconductive tunnel junctions (STJs) as high resolution X-ray detectors the homogeneity of the detector response is of utmost importance. In this article it is shown how this homogeneity is degraded by the penetration of Abrikosov vortices (AVs) into the junction electrodes. These AVs may exist because of small misalignments in the parallel magnetic field, which is applied to suppress the Josephson current and Fiske steps. By means of Low Temperature Scanning Electron Microscopy (LTSEM) the response of the tunnel junction to local energy deposition is mapped and found to be reduced in areas where AVs are present. On the basis of these experiments the threshold perpendicular field at which vortices start to penetrate the junction is derived.

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Le Grand JB, Martin J, Gross R, Huebener RP, Hamster AW, Brons GCS et al. Spatial inhomogeneities in the energy response of a tunnel junction detector due to penetration of Abrikosov vortices. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 1996 Feb 11;370(1):131-132. doi: 10.1016/0168-9002(95)01116-1

Spatial inhomogeneities in the energy response of a tunnel junction detector due to penetration of Abrikosov vortices

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