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Magnetic field modulated microwave spectroscopy across phase transitions and the search for new superconductors

Ramirez, G, Basaran, A, De La Venta, J, Pereiro Viterbo, Juan and Schuller, Ivan K 2014. Magnetic field modulated microwave spectroscopy across phase transitions and the search for new superconductors. Reports on Progress in Physics 77 , 093902. 10.1088/0034-4885/77/9/093902

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Abstract

This article introduces magnetic field modulated microwave spectroscopy (MFMMS) as a unique and high-sensitivity technique for use in the search for new superconductors. MFMMS measures reflected microwave power as a function of temperature. The modulation induced by the external ac magnetic field enables the use of phase locked detection with the consequent sensitivity enhancement. The MFMMS signal across several prototypical structural, magnetic, and electronic transitions is investigated. A literature review on microwave absorption across superconducting transitions is included. We show that MFMMS can be used to detect superconducting transitions selectively with very high sensitivity.

Item Type: Article
Date Type: Published Online
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QC Physics
Publisher: Institute of Physics
ISSN: 0034-4885
Funders: AFOSR
Date of Acceptance: 3 June 2014
Last Modified: 21 Feb 2019 15:56
URI: http://orca.cf.ac.uk/id/eprint/94214

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