Absolute calibration of microwave loss in ESR spectrometers | Zendy

Glarum Sivert H. | Zendy; Ramirez Arthur P. | Zendy; Haddon Robert C. | Zendy

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Absolute calibration of microwave loss in ESR spectrometers

Author(s) -

Glarum Sivert H.,

Ramirez Arthur P.,

Haddon Robert C.

Publication year - 1994

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.19940060112

Subject(s) - microwave , materials science , spectrometer , calibration , voltmeter , superconductivity , characterization (materials science) , microwave power , microwave cavity , analytical chemistry (journal) , magnetic field , optics , power (physics) , physics , nanotechnology , condensed matter physics , chemistry , chromatography , quantum mechanics

Studies of field‐dependent microwave losses are useful for the detection and characterization of superconducting materials. The measurements are made in a conventional ESR spectrometer, but until now the data interpretation has been mainly qualitative. A calibration procedure using just a frequency counter, DC voltmeter, and ball bearing is decribed. This allows a quantitative determination of magnetic losses to ∼ 5% accuracy without the need to determine the cavity Q , power level, or field strength.

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