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Title: Soft x-ray magneto-optical Kerr effect (invited) (abstract)

Abstract

Recently, there has been a great deal of interest in x-ray magnetic circular dichroism (MCD) and its applications to the study of magnetic thin films and multilayers due to the dramatically enhanced dichroic effect and its element specific nature. In this work, the soft x-ray magneto-optical Kerr effect, an effect closely related to MCD, is investigated. Detailed comparison between MCD and the Kerr effect is discussed. As an example, recent results from a thin bcc Co film will be presented. In the Kerr effect measurement, specular reflectivity as a function of incident angle and photon energy was measured using both linearly polarized and circularly polarized x rays. To give the largest effect, in the case of linearly polarized light, specular reflectivity was measured in the transverse configuration, while in the case of circularly polarized light, the measurement was carried out in the longitudinal configuration. In both cases very large changes in reflectivity, up to 40% in the linearly polarized case and 75% in the circularly polarized case, were observed near the Co [ital L][sub II] and [ital L][sub III] absorption edges upon reversal of the direction of the magnetic field. These results agree very well with a macroscopic model calculation.

Authors:
 [1];  [2];  [1];  [3];  [1]
  1. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)
  2. AT T Bell Laboratories, Murray Hill, New Jersey 07974 (United States)
  3. Naval Research Laboratory, Washington, DC 20375 (United States)
Publication Date:
OSTI Identifier:
7072864
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics; (United States)
Additional Journal Information:
Journal Volume: 75:10; Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COBALT; MAGNETO-OPTICAL EFFECTS; SOFT X RADIATION; BCC LATTICES; KERR EFFECT; MAGNETIC CIRCULAR DICHROISM; REFLECTIVITY; THIN FILMS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; DICHROISM; DIELECTRIC PROPERTIES; ELECTRICAL PROPERTIES; ELECTROMAGNETIC RADIATION; ELEMENTS; FILMS; IONIZING RADIATIONS; METALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; SURFACE PROPERTIES; TRANSITION ELEMENTS; X RADIATION; 360104* - Metals & Alloys- Physical Properties

Citation Formats

Kao, C C, Chen, C T, Johnson, E D, Idzerda, Y U, and Hastings, J B. Soft x-ray magneto-optical Kerr effect (invited) (abstract). United States: N. p., 1994. Web. doi:10.1063/1.355575.
Kao, C C, Chen, C T, Johnson, E D, Idzerda, Y U, & Hastings, J B. Soft x-ray magneto-optical Kerr effect (invited) (abstract). United States. https://doi.org/10.1063/1.355575
Kao, C C, Chen, C T, Johnson, E D, Idzerda, Y U, and Hastings, J B. 1994. "Soft x-ray magneto-optical Kerr effect (invited) (abstract)". United States. https://doi.org/10.1063/1.355575.
@article{osti_7072864,
title = {Soft x-ray magneto-optical Kerr effect (invited) (abstract)},
author = {Kao, C C and Chen, C T and Johnson, E D and Idzerda, Y U and Hastings, J B},
abstractNote = {Recently, there has been a great deal of interest in x-ray magnetic circular dichroism (MCD) and its applications to the study of magnetic thin films and multilayers due to the dramatically enhanced dichroic effect and its element specific nature. In this work, the soft x-ray magneto-optical Kerr effect, an effect closely related to MCD, is investigated. Detailed comparison between MCD and the Kerr effect is discussed. As an example, recent results from a thin bcc Co film will be presented. In the Kerr effect measurement, specular reflectivity as a function of incident angle and photon energy was measured using both linearly polarized and circularly polarized x rays. To give the largest effect, in the case of linearly polarized light, specular reflectivity was measured in the transverse configuration, while in the case of circularly polarized light, the measurement was carried out in the longitudinal configuration. In both cases very large changes in reflectivity, up to 40% in the linearly polarized case and 75% in the circularly polarized case, were observed near the Co [ital L][sub II] and [ital L][sub III] absorption edges upon reversal of the direction of the magnetic field. These results agree very well with a macroscopic model calculation.},
doi = {10.1063/1.355575},
url = {https://www.osti.gov/biblio/7072864}, journal = {Journal of Applied Physics; (United States)},
issn = {0021-8979},
number = ,
volume = 75:10,
place = {United States},
year = {Sun May 15 00:00:00 EDT 1994},
month = {Sun May 15 00:00:00 EDT 1994}
}