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

Ramirez, Juan Gabriel, Basaran, Ali C., De La Venta, J., Pereiro, Juan ORCID: https://orcid.org/0000-0002-2582-3498 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 (9) , 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:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Publisher:	IOP Publishing
ISSN:	0034-4885
Funders:	AFOSR
Date of Acceptance:	3 June 2014
Last Modified:	01 Nov 2022 11:12
URI:	https://orca.cardiff.ac.uk/id/eprint/94214

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