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Title: Polarization-modulated magnetic soft-x-ray transmission microscopy

Abstract

An adjustable aperture element has been integrated into the full-field soft-x-ray microscope at the Advanced Light Source to select either the right or left elliptically polarized x rays emitted at an inclined angle from a bending magnet. Magnetic contrast recorded at the Fe L{sub 3} edge in a 59-nm-thin Gd{sub 25}Fe{sub 75} layer can be modulated and scales with the degree of circular polarization in agreement with theoretical calculations. Nonmagnetic background contributions can be reduced and magnetic contrast is enhanced by comparing two images taken with opposite circular polarization. The fast modulation speed of this technique allows for lock-in recording schemes in high-resolution magnetic soft-x-ray microscopy.

Authors:
; ; ; ;  [1];  [2]
  1. Ernest Orlando Lawrence Berkeley National Laboratory, Center for X-ray Optics, 1 Cyclotron Road, Berkeley, California 94720 (United States)
  2. (Korea, Republic of)
Publication Date:
OSTI Identifier:
20719664
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 98; Journal Issue: 9; Other Information: DOI: 10.1063/1.2128051; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ADVANCED LIGHT SOURCE; APERTURES; BINARY ALLOY SYSTEMS; GADOLINIUM ALLOYS; IMAGES; IRON ALLOYS; LAYERS; MAGNETIC CIRCULAR DICHROISM; MAGNETS; MODULATION; OPTICAL MICROSCOPES; OPTICAL MICROSCOPY; POLARIZATION; SOFT X RADIATION

Citation Formats

Kang, Bo-Sun, Kim, Dong-Hyun, Anderson, Erik, Fischer, Peter, Cho, Gyuseong, and Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701. Polarization-modulated magnetic soft-x-ray transmission microscopy. United States: N. p., 2005. Web. doi:10.1063/1.2128051.
Kang, Bo-Sun, Kim, Dong-Hyun, Anderson, Erik, Fischer, Peter, Cho, Gyuseong, & Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701. Polarization-modulated magnetic soft-x-ray transmission microscopy. United States. doi:10.1063/1.2128051.
Kang, Bo-Sun, Kim, Dong-Hyun, Anderson, Erik, Fischer, Peter, Cho, Gyuseong, and Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701. Tue . "Polarization-modulated magnetic soft-x-ray transmission microscopy". United States. doi:10.1063/1.2128051.
@article{osti_20719664,
title = {Polarization-modulated magnetic soft-x-ray transmission microscopy},
author = {Kang, Bo-Sun and Kim, Dong-Hyun and Anderson, Erik and Fischer, Peter and Cho, Gyuseong and Korea Advanced Institute of Science and Technology, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701},
abstractNote = {An adjustable aperture element has been integrated into the full-field soft-x-ray microscope at the Advanced Light Source to select either the right or left elliptically polarized x rays emitted at an inclined angle from a bending magnet. Magnetic contrast recorded at the Fe L{sub 3} edge in a 59-nm-thin Gd{sub 25}Fe{sub 75} layer can be modulated and scales with the degree of circular polarization in agreement with theoretical calculations. Nonmagnetic background contributions can be reduced and magnetic contrast is enhanced by comparing two images taken with opposite circular polarization. The fast modulation speed of this technique allows for lock-in recording schemes in high-resolution magnetic soft-x-ray microscopy.},
doi = {10.1063/1.2128051},
journal = {Journal of Applied Physics},
number = 9,
volume = 98,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 2005},
month = {Tue Nov 01 00:00:00 EST 2005}
}