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The Application of Kramers‐Kronig Relations to the Analysis of the Resonance Lines of Metallic Samples in ESR Spectroscopy
Author(s) -
Jarosz J.
Publication year - 1981
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221050117
Subject(s) - laser linewidth , kramers–kronig relations , resonance (particle physics) , spectroscopy , line (geometry) , metal , chemistry , analytical chemistry (journal) , intermetallic , spectral line , spectrometer , nuclear magnetic resonance , atomic physics , physics , optics , laser , chromatography , refractive index , geometry , mathematics , organic chemistry , alloy , quantum mechanics , astronomy
Abstract The application of Kramers‐Kronig (K‐K) relations is employed to the analysis of the shape of asymmetrical resonance lines observed for metallic samples, using ESR spectrometers. Intermetallic Gd 1− x Ho x Al 2 compounds with x equal to 0, 0.01, 0.02, 0.03, and 0.04 are investigated, taking advantage of this method. For x equal to 0 and 0.02 samples are investigated, with particle sizes changing from 5 × 10 −6 to 2.5 × 10 −3 m. Agreement is found between the obtained results and those predicted by Dyson and Bloembergen. Using the pure absorption line separated from the observed resonance line, the g factor and the linewidth DH are calculated. Good agreement is achieved with the g and DH values calculated according to the method described by Peter et al.