Published November 19, 2008 | Version v1
Journal article Metadata-only

Correlation between magnetic properties and the electronic structures of soft magnetic ternary Fe78-xYxB22 (x = 4-9) bulk metallic glasses

Creators

  • 1. Department of Physics, Tamkang University, Tamsui 251, Taiwan (China)
  • 2. Department of Applied Physics, National University of Kaohsiung, Kaohsiung 811, Taiwan (China)
  • 3. Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan (China)
  • 4. National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan (China)
  • 5. Department of Material Science and Engineering, National Tsing Hua University, Hsinchu 300, Taiwan (China)
  • 6. Department of Material Science and Engineering, Feng Chia University, Taichung 407, Taiwan (China)

Description

Fe and Y K-edge extended x-ray absorption fine structure, Fe(Y) L3,2-edge (L3-edge) x-ray absorption near-edge structure (XANES) and valence-band photoemission spectroscopy (VB-PES) measurements have been carried out to study soft magnetic ternary Fe78-xYxB22 bulk metallic glasses (BMGs). The combined XANES and VB-PES results do not show broadening of the Fe 3d band to support the previous interpretation of the reduction of the magnetic moment in BMGs by Y-induced decrease of exchange splitting of Fe 3d orbitals. Instead, the density of delocalized/itinerant Fe 3d states in the vicinity of the Fermi level is found to be reduced by Y substitution, which reduces the strength of itinerant-states-mediated ferromagnetic coupling between local spins on the Fe ions and the total magnetic moment of the Fe-based BMGs.

Availability note (English)

Available from http://dx.doi.org/10.1088/0953-8984/20/46/465105

Additional details

Identifiers

DOI
10.1088/0953-8984/20/46/465105;
PII
S0953-8984(08)80047-1;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
20
Journal Issue
46
Journal Page Range
[6 p.]
ISSN
0953-8984
CODEN
JCOMEL

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
41008260
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION SPECTROSCOPY; BORON ALLOYS; COUPLING; DENSITY; ELECTRONIC STRUCTURE; FERMI LEVEL; FINE STRUCTURE; IRON; IRON ALLOYS; IRON IONS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; METALLIC GLASSES; PHOTOEMISSION; SPIN; TERNARY ALLOY SYSTEMS; VALENCE; X RADIATION; X-RAY SPECTROSCOPY; YTTRIUM ALLOYS
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; ANGULAR MOMENTUM; CHARGED PARTICLES; ELECTROMAGNETIC RADIATION; ELEMENTS; EMISSION; ENERGY LEVELS; IONIZING RADIATIONS; IONS; METALS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; RADIATIONS; SECONDARY EMISSION; SPECTROSCOPY; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS