skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Polarization and resonance studies of x-ray magnetic scattering in holmium

Abstract

We report the results of an x-ray-scattering study of the polarization and resonance properties of the magnetic cross section of holmium. Off resonance, we have measured the degree of linear polarization for several different chemical and magnetic reflections, and shown that the results are consistent with a nonresonant description of the x-ray-scattering cross section. When the incident x-ray energy is tuned near the {ital L}{sub III} absorption edge, large resonant enhancements of the magnetic scattering, and resonant integer harmonics, are observed. Detailed measurements of the dependence of the integrated magnetic intensity on the incident x-ray energy, on the x-ray momentum transfer, and on the sample temperature are described for incident x-ray energies in a range of 250 eV below and above the {ital L}{sub III} absorption edge. In addition, we have characterized the energy dependence of the linearly {sigma}- and {pi}-polarized components of the magnetic scattering in this range, and fitted the resulting line shapes to a simple model of the resonant cross section, including electric dipole and quadrupole transitions among atomic orbitals. The most striking feature of the line shapes is their asymmetry, which results from the interference of the resonant and nonresonant cross sections. Smaller resonant enhancements ofmore » the magnetic scattering are reported for incident x-ray energies tuned near the {ital L}{sub II} and {ital L}{sub I} absorption edges.« less

Authors:
;  [1]; ; ;  [2];  [3];  [4]
  1. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (USA)
  2. AT T Bell Laboratories, 600 Mountain Ave., Murray Hill, New Jersey 07973 (USA)
  3. CHESS, Cornell University, Ithaca, New York 14853 (USA)
  4. Institut Laue-Langevin, 38042, Grenoble, CEDEX, (France)
Publication Date:
OSTI Identifier:
5693074
DOE Contract Number:  
AC02-76CH00016
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter; (USA)
Additional Journal Information:
Journal Volume: 43:7; Journal ID: ISSN 0163-1829
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; HOLMIUM; MAGNETIC PROPERTIES; E1-TRANSITIONS; ENERGY DEPENDENCE; POLARIZATION; X-RAY DIFFRACTION; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; ENERGY-LEVEL TRANSITIONS; METALS; MULTIPOLE TRANSITIONS; PHYSICAL PROPERTIES; RARE EARTHS; SCATTERING; 360104* - Metals & Alloys- Physical Properties

Citation Formats

Gibbs, D, Gruebel, G, Harshman, D R, Isaacs, E D, McWhan, D B, Mills, D, and Vettier, C. Polarization and resonance studies of x-ray magnetic scattering in holmium. United States: N. p., 1991. Web. doi:10.1103/PhysRevB.43.5663.
Gibbs, D, Gruebel, G, Harshman, D R, Isaacs, E D, McWhan, D B, Mills, D, & Vettier, C. Polarization and resonance studies of x-ray magnetic scattering in holmium. United States. doi:10.1103/PhysRevB.43.5663.
Gibbs, D, Gruebel, G, Harshman, D R, Isaacs, E D, McWhan, D B, Mills, D, and Vettier, C. Fri . "Polarization and resonance studies of x-ray magnetic scattering in holmium". United States. doi:10.1103/PhysRevB.43.5663.
@article{osti_5693074,
title = {Polarization and resonance studies of x-ray magnetic scattering in holmium},
author = {Gibbs, D and Gruebel, G and Harshman, D R and Isaacs, E D and McWhan, D B and Mills, D and Vettier, C},
abstractNote = {We report the results of an x-ray-scattering study of the polarization and resonance properties of the magnetic cross section of holmium. Off resonance, we have measured the degree of linear polarization for several different chemical and magnetic reflections, and shown that the results are consistent with a nonresonant description of the x-ray-scattering cross section. When the incident x-ray energy is tuned near the {ital L}{sub III} absorption edge, large resonant enhancements of the magnetic scattering, and resonant integer harmonics, are observed. Detailed measurements of the dependence of the integrated magnetic intensity on the incident x-ray energy, on the x-ray momentum transfer, and on the sample temperature are described for incident x-ray energies in a range of 250 eV below and above the {ital L}{sub III} absorption edge. In addition, we have characterized the energy dependence of the linearly {sigma}- and {pi}-polarized components of the magnetic scattering in this range, and fitted the resulting line shapes to a simple model of the resonant cross section, including electric dipole and quadrupole transitions among atomic orbitals. The most striking feature of the line shapes is their asymmetry, which results from the interference of the resonant and nonresonant cross sections. Smaller resonant enhancements of the magnetic scattering are reported for incident x-ray energies tuned near the {ital L}{sub II} and {ital L}{sub I} absorption edges.},
doi = {10.1103/PhysRevB.43.5663},
journal = {Physical Review, B: Condensed Matter; (USA)},
issn = {0163-1829},
number = ,
volume = 43:7,
place = {United States},
year = {1991},
month = {3}
}