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Design and construction of a point-contact spectroscopy rig with lateral scanning capability

Title: Design and construction of a point-contact spectroscopy rig with lateral scanning capability.
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Name(s): Tortello, M., author
Park, W. K., author
Ascencio, C. O., author
Saraf, P., author
Greene, L. H., author
Type of Resource: text
Genre: Text
Date Issued: 2016-06
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The design and realization of a cryogenic rig for point-contact spectroscopy measurements in the needle-anvil configuration is presented. Thanks to the use of two piezoelectric nano-positioners, the tip can move along the vertical (z) and horizontal (x) direction and thus the rig is suitable to probe different regions of a sample in situ. Moreover, it can also form double point-contacts on different facets of a single crystal for achieving, e.g., an interferometer configuration for phase-sensitive measurements. For the later purpose, the sample holder can also host a Helmholtz coil for applying a small transverse magnetic field to the junction. A semi-rigid coaxial cable can be easily added for studying the behavior of Josephson junctions under microwave irradiation. The rig can be detached from the probe and thus used with different cryostats. The performance of this new probe has been tested in a Quantum Design PPMS system by conducting point-contact Andreev reflection measurements on Nb thin films over large areas as a function of temperature and magnetic field. Published by AIP Publishing.
Identifier: FSU_libsubv1_wos_000379177000050 (IID), 10.1063/1.4953340 (DOI)
Keywords: Conductivity, dependence, field, gap, junctions, nb, order, superconductors, transition
Publication Note: The publisher’s version of record is available at http://www.dx.doi.org/10.1063/1.4953340
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000379177000050
Owner Institution: FSU
Is Part Of: Review of Scientific Instruments.
0034-6748
Issue: iss. 6, vol. 87

Choose the citation style.
Tortello, M., Park, W. K., Ascencio, C. O., Saraf, P., & Greene, L. H. (2016). Design and construction of a point-contact spectroscopy rig with lateral scanning capability. Review Of Scientific Instruments. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000379177000050