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Signs of anisotropic magnetoresistance in Co2MnGa Heusler alloy epitaxial thin films based on current direction
- Source :
- Applied Physics Express. 12:103005
- Publication Year :
- 2019
- Publisher :
- IOP Publishing, 2019.
-
Abstract
- Anisotropic magnetoresistance (AMR) effects in Co x (Mn0.44Ga0.56)100−x epitaxial thin films were investigated in the temperature range of 5–300 K by changing the current (I) direction to the crystal axis and the Co content (x). The AMR ratios were mostly positive for I // Co2MnGa[100] and negative for I // Co2MnGa[110] and showed peak values at x = 49.7 at% for both current directions. AMR ratios calculated from s–d scattering theory, including crystal field effects with density of states information from first-principles calculations, well reproduced experimental features.
- Subjects :
- 010302 applied physics
Materials science
Condensed matter physics
Magnetoresistance
Field (physics)
Alloy
General Engineering
General Physics and Astronomy
02 engineering and technology
engineering.material
Atmospheric temperature range
021001 nanoscience & nanotechnology
01 natural sciences
Crystal
0103 physical sciences
Density of states
engineering
Scattering theory
Current (fluid)
0210 nano-technology
Subjects
Details
- ISSN :
- 18820786 and 18820778
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Applied Physics Express
- Accession number :
- edsair.doi...........c9dfb0ff07c1e73d4d6b6cf1feb27eeb