Magnetic x-ray-scattering study of uranium arsenide
Creators
- 1. AT ampersand T Bell Laboratories, Murray Hill, NJ (USA)
- 2. Institut Laue-Langevin, 38052 Grenoble CEDEX (France)
- 3. Oak Ridge National Laboratory, Oak Ridge, TN (USA)
- 4. Brookhaven National Laboratory, Upton, NY (USA)
- 5. Eidgenossische Technische Hochschule Zurich-Honggerberg, Zurich (Switzerland)
Description
The resonant magnetic x-ray scattering in UAs has been measured from 3.4 to 5.0 keV through the MIII, MIV, and MV absorption edges. The data are fit by three dipole oscillators that add coherently. The polarization dependence of nonresonant magnetic scattering was measured at 7.6 keV in the type-IA 2q phase below T=63 K. The ratio of the (0,1/2,2)σ-π magnetic reflection to the (0,0,2)σ-σ charge reflection is 1x10-9, and the ratio calculated assuming the free-ion values of L=6 and S=3/2 is 1.04x10-9. This is a direct measurement of the strong orbital contribution to the magnetic moment in UAs. In the type-IA phase a tetragonal lattice distortion with c/a=1.0002 and a (003)σ-σ charge peak associated with a charge modulation at 2τ, where τ is the modulation wave vector of the magnetic structure, were observed
Additional details
Publishing Information
- Journal Title
- Physical Review, B: Condensed Matter
- Journal Volume
- 42
- Journal Issue
- 10
- Series
- Phys. Rev., B: Condens. Matter.
- Journal Page Range
- 6007-6017
- ISSN
- 0163-1829
- CODEN
- PRBMD
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22042797
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- KEV RANGE 01-10; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; TETRAGONAL LATTICES; URANIUM ARSENIDES; X-RAY DIFFRACTION
- Descriptors DEC
- ACTINIDE COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; COHERENT SCATTERING; CRYSTAL LATTICES; CRYSTAL STRUCTURE; DIFFRACTION; ENERGY RANGE; KEV RANGE; PHYSICAL PROPERTIES; PNICTIDES; SCATTERING; URANIUM COMPOUNDS