Published May 7, 2015 | Version v1
Journal article Metadata-only

X-ray magnetic circular dichroism study of epitaxial magnetite ultrathin film on MgO(100)

Creators

  • 1. Spintronics and Nanodevice Laboratory, Department of Electronics, University of York, York YO10 5DD (United Kingdom)
  • 2. York-Nanjing International Center for Spintronics (YNICS), School of Electronics Science and Engineering, Nanjing University, Nanjing 210093 (China)
  • 3. Center for Condensed Matter Sciences, National Taiwan University, Taipei 106, Taiwan (China)
  • 4. IBM Research Division, Almaden Research Center, San Jose, California 95120 (United States)
  • 5. Diamond Light Source, Didcot OX11 0DE (United Kingdom)

Description

The spin and orbital magnetic moments of the Fe3O4 epitaxial ultrathin film synthesized by plasma assisted simultaneous oxidization on MgO(100) have been studied with X-ray magnetic circular dichroism. The ultrathin film retains a rather large total magnetic moment, i.e., (2.73 ± 0.15) μB/f.u., which is ∼70% of that for the bulk-like Fe3O4. A significant unquenched orbital moment up to 0.54 ± 0.05 μB/f.u. was observed, which could come from the symmetry breaking at the Fe3O4/MgO interface. Such sizable orbital moment will add capacities to the Fe3O4-based spintronics devices in the magnetization reversal by the electric field

Additional details

Identifiers

DOI
10.1063/1.4916296;
arXiv
arXiv:1501.01803v3;

Publishing Information

Journal Title
Journal of Applied Physics
Journal Volume
117
Journal Issue
17
Journal Page Range
vp.
ISSN
0021-8979
CODEN
JAPIAU

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
46115999
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
CRYSTAL STRUCTURE; ELECTRIC FIELDS; EPITAXY; FERRITES; INTERFACES; IRON OXIDES; MAGNESIUM OXIDES; MAGNETIC CIRCULAR DICHROISM; MAGNETIC MOMENTS; MAGNETITE; MAGNETIZATION; SPIN; SYMMETRY BREAKING; THIN FILMS; X RADIATION
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; ANGULAR MOMENTUM; CHALCOGENIDES; CRYSTAL GROWTH METHODS; DICHROISM; ELECTROMAGNETIC RADIATION; FERRIMAGNETIC MATERIALS; FILMS; IONIZING RADIATIONS; IRON COMPOUNDS; IRON ORES; MAGNESIUM COMPOUNDS; MAGNETIC MATERIALS; MATERIALS; MINERALS; ORES; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; RADIATIONS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
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