The effect of FeF2 on the magneto-optic response in FeF2/Fe/FeF2 sandwiches
Creators
- 1. Institute of Physics, VSB-Technical University of Ostrava (Czech Republic)
- 2. Institute of Physics, Charles University, Prague (Czech Republic)
- 3. Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, Colorado Springs, CO 80918 (United States)
- 4. Research Institute of Electronics, Shizuoka University, Hamamatsu (Japan)
- 5. Seagate Technology, 7801 Computer Ave., Bloomington, MN 55435 (United States)
- 6. Department of Mathematics and Descriptive Geometry, VSB-Technical University of Ostrava (Czech Republic)
Description
The room temperature optical constants n and k of MBE grown FeF2 films are reported. Because of poor chemical stability, FeF2 had to be coated with a protective Au layer. Reflection spectral ellipsometry in the photon energy range between 1.3 and 5.2 eV was performed on structures with a typical profile Au(0.5 nm)/FeF2(120 nm)/Au(30 nm)/Ag(20 nm)/Fe(0.6 nm) grown on GaAs(0 0 1) substrate. The spectra of n and k in FeF2 were subsequently employed in the design of FeF2/Fe/FeF2 sandwiches considered as magneto-optic (MO) sensors for weak microwave currents. Their MO response was evaluated using reflection MO (Kerr) spectroscopy at polar magnetization. The present results may be of interest in MO studies of magnetic nanostructures with Fe/FeF2/Fe, including MO magnetometry and MO magnetic domain imaging.
Availability note (English)
Available from http://dx.doi.org/10.1088/0022-3727/43/15/155301Additional details
Identifiers
- DOI
- 10.1088/0022-3727/43/15/155301;
- PII
- S0022-3727(10)33231-1;
Publishing Information
- Journal Title
- Journal of Physics. D, Applied Physics
- Journal Volume
- 43
- Journal Issue
- 15
- Journal Page Range
- [6 p.]
- ISSN
- 0022-3727
- CODEN
- JPAPBE
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42059363
- Subject category
- S77: NANOSCIENCE AND NANOTECHNOLOGY;
- Descriptors DEI
- ELLIPSOMETRY; GALLIUM ARSENIDES; IRON; IRON FLUORIDES; LAYERS; MAGNETIZATION; MICROWAVE RADIATION; MOLECULAR BEAM EPITAXY; NANOSTRUCTURES; PHOTONS; REFLECTION; SENSORS; SPECTROSCOPY; TEMPERATURE RANGE 0273-0400 K
- Descriptors DEC
- ARSENIC COMPOUNDS; ARSENIDES; BOSONS; CRYSTAL GROWTH METHODS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; EPITAXY; FLUORIDES; FLUORINE COMPOUNDS; GALLIUM COMPOUNDS; HALIDES; HALOGEN COMPOUNDS; IRON COMPOUNDS; MASSLESS PARTICLES; MEASURING METHODS; METALS; PNICTIDES; RADIATIONS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS