1972
DOI: 10.1002/pssa.2210140128
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Relation entre les spectres de magnéto-réflexion et d'effet Faraday. Application à des composés de type grenat et spinelle

Abstract: Nous considérons un milieu absorbant soumis à un champ magnétique. La détermination du dichroïsme magnétique nécessite la connaissance: des constantes optiques n et k, de la rotation Kerr θ et de l'ellipticité Kerr (ou du dichroïsme différentiel ΔR/R en lumière eireulaire droite et gauche). Nous montrons que si le milieu n'est pas trop absorbant (k ≦ 1) il n'est pas nécessaire de connaǐtre toutes ces grandeurs; en effet, le spectre ΔR/R n'est autre que le spectre de biréfringence circulaire magnétique, et la r… Show more

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Cited by 5 publications
(1 citation statement)
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“…Kerr microscopes have also recently been developed to achieve satisfying contrast in the case of weak &io effects (0, -0.1") by using sensitive CCD cameras and sophisticated image processing [4-61. The measurement of rotations and ellipticities with a resolution of a few p a d is achieved with the help of a photoelastic modulator [7,8] driven at a fairly high frequency, e.g. f = 50 kHz [7], Linear detection of the 6, or cli signal is obtained when placing the rellecting sample between polarizers, which are orientated 45" to each other.…”
Section: Introductionmentioning
confidence: 99%
“…Kerr microscopes have also recently been developed to achieve satisfying contrast in the case of weak &io effects (0, -0.1") by using sensitive CCD cameras and sophisticated image processing [4-61. The measurement of rotations and ellipticities with a resolution of a few p a d is achieved with the help of a photoelastic modulator [7,8] driven at a fairly high frequency, e.g. f = 50 kHz [7], Linear detection of the 6, or cli signal is obtained when placing the rellecting sample between polarizers, which are orientated 45" to each other.…”
Section: Introductionmentioning
confidence: 99%