In-plane anisotropy and magnetostriction constants of Fe/Ga0.8In0.2As films with Cr overlayers
Creators
- 1. Department of Engineering Materials, University of Sheffield, Sheffield S1 3JD (United Kingdom)
- 2. Department of Electronics, University of York, York YO10 5DD (United Kingdom)
Description
Thin Fe films on the lattice-matched Ga0.8In0.2As substrate were investigated as part of a determination of the origin of the in-plane uniaxial anisotropy that is present in Fe/GaAs and Fe/InAs films. The epitaxial Fe films were grown using molecular beam epitaxy (MBE), and were capped with a Cr overlayer. The in-plane anisotropies of each film were inferred from the normalized magnetization loops measured using a magneto-optic Kerr effect (MOKE) magnetometer. Using a fitting method to the magnetization data, the cubic and uniaxial anisotropy constants for each film were determined. The Villari method was used to determine the magnetostriction constants. For all the films, they were negative, and became more negative as the Fe thickness decreased. The magnetic parameters of the Fe/Ga0.8In0.2As films were compared with those of the Fe/GaAs and Fe/InAs films, to determine the origin of the uniaxial in-plane anisotropy
Availability note (English)
Available online at http://stacks.iop.org/0953-8984/17/7253/cm5_46_009.pdf or at the Web site for the Journal of Physics. Condensed Matter (ISSN 1361-648X) http://www.iop.org/Additional details
Identifiers
- URL
- http://stacks.iop.org/0953-8984/17/7253/cm5_46_009.pdf;
- DOI
- 10.1088/0953-8984/17/46/009;
- PII
- S0953-8984(05)03774-4;
Publishing Information
- Journal Title
- Journal of Physics. Condensed Matter
- Journal Volume
- 17
- Journal Issue
- 46
- Journal Page Range
- p. 7253-7262
- ISSN
- 0953-8984
- CODEN
- JCOMEL
INIS
- Country of Publication
- United Kingdom
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37059335
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANISOTROPY; FILMS; GALLIUM ARSENIDES; INDIUM ARSENIDES; INTERFACES; IRON; KERR EFFECT; MAGNETIZATION; MAGNETOMETERS; MAGNETOSTRICTION; MOLECULAR BEAM EPITAXY; SUBSTRATES; THICKNESS
- Descriptors DEC
- ARSENIC COMPOUNDS; ARSENIDES; CRYSTAL GROWTH METHODS; DIELECTRIC PROPERTIES; DIMENSIONS; ELECTRICAL PROPERTIES; ELEMENTS; EPITAXY; GALLIUM COMPOUNDS; INDIUM COMPOUNDS; MAGNETIC PROPERTIES; MEASURING INSTRUMENTS; METALS; PHYSICAL PROPERTIES; PNICTIDES; TRANSITION ELEMENTS