Published May 1, 2016 | Version v1
Journal article Metadata-only

Structure analyses of Cu nanoclusters in the soft magnetic Fe85.2Si1B9P4Cu0.8 alloy by XAFS and fcc cluster model

Creators

  • 1. Research and Development Center for Ultra High Efficiency Nano-crystalline Soft Magnetic Material, Institute for Materials Research, Tohoku University, Sendai 980- 8577,Japan (Japan)
  • 2. Sendai National College of Technology, Medeshima, Natori, Miyagi 981-1239 (Japan)
  • 3. Industrial Application Division, Japan Synchrotron Radiation Research Institute (JASRI), Kouto, Sayo, Hyogo 679-5198 (Japan)

Description

Size of the clusters and structure details of fcc Cu clusters in nanocrystalline soft magnetic alloy of Fe85-86Si1-2B8P4Cu1 (NANOMET) are investigated. A linear combination fitting of XAFS data indicates that about 30% of Cu atoms are partitioned in the fcc clusters and the rest in the amorphous matrix. EXAFS of the fcc Cu nanocluster embedded in amorphous matrix is calculated on the basis of a simple fcc structure model using FEFF9. Surface effect of the nanoclusters is considered by counting a fraction of the nearest neighbour atoms in amorphous matrix. Good agreement with the experimental result is obtained for the fcc nanocluster with 9 coordination shells which consists of total 177 atoms within 1.5 nm in a diameter. (paper)

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/712/1/012106

Additional details

Identifiers

DOI
10.1088/1742-6596/712/1/012106;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
712
Journal Issue
1
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
16. international conference on X-ray absorption fine structure
Acronym
XAFS16
Dates
23-28 Aug 2015
Place
Karlsruhe (Germany)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
49017454
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORPTION SPECTROSCOPY; AMORPHOUS STATE; ATOMIC CLUSTERS; BORON ALLOYS; COPPER; COPPER ALLOYS; CRYSTALS; FCC LATTICES; FINE STRUCTURE; IRON BASE ALLOYS; MATRIX MATERIALS; NANOSTRUCTURES; PHOSPHORUS ADDITIONS; SILICON ALLOYS; SURFACES; X-RAY SPECTROSCOPY
Descriptors DEC
ALLOYS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CUBIC LATTICES; ELEMENTS; IRON ALLOYS; MATERIALS; METALS; SPECTROSCOPY; THREE-DIMENSIONAL LATTICES; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENTS