Ferromagnetism and coupling between charge carriers and magnetization at room temperature in Ge/MnAs multilayers
- Department of Physics and Astronomy and Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208 (United States)
Ge/MnAs multilayers are grown on (001) GaAs substrates by molecular-beam epitaxy. All samples investigated showed strong anomalous Hall effects at room temperature with p-type conductivity and temperature-dependent hysteresis loops in the magnetization. Ge/MnAs multilayers also revealed an in-plane magnetic easy axis and a vanishingly small in-plane magnetic anisotropy. These results are in sharp contrast to MnAs/GaAs digital alloys, where the reported Curie temperatures are at or below 50 K, and demonstrate the potential of germanium-based spintronic devices.
- OSTI ID:
- 20634356
- Journal Information:
- Applied Physics Letters, Vol. 85, Issue 15; Other Information: DOI: 10.1063/1.1801173; (c) 2004 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magneto-transport anisotropy in epitaxially grown hybrid MnAs/GaAs multilayer
Large anomalous Hall effect in ferromagnetic insulator-topological insulator heterostructures
Self-assembly and magnetic properties of MnAs nanowires on GaAs(001) substrate
Journal Article
·
Thu May 07 00:00:00 EDT 2015
· Journal of Applied Physics
·
OSTI ID:20634356
Large anomalous Hall effect in ferromagnetic insulator-topological insulator heterostructures
Journal Article
·
Mon Aug 04 00:00:00 EDT 2014
· Applied Physics Letters
·
OSTI ID:20634356
+3 more
Self-assembly and magnetic properties of MnAs nanowires on GaAs(001) substrate
Journal Article
·
Mon Mar 15 00:00:00 EDT 2010
· Journal of Applied Physics
·
OSTI ID:20634356
+4 more
Related Subjects
36 MATERIALS SCIENCE
ANISOTROPY
CHARGE CARRIERS
CURIE POINT
ELECTRIC CONDUCTIVITY
FERROMAGNETIC MATERIALS
FERROMAGNETISM
GALLIUM ARSENIDES
GERMANIUM
HALL EFFECT
HYSTERESIS
LAYERS
MAGNETIC SEMICONDUCTORS
MAGNETIZATION
MANGANESE ARSENIDES
MOLECULAR BEAM EPITAXY
SUBSTRATES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K
ANISOTROPY
CHARGE CARRIERS
CURIE POINT
ELECTRIC CONDUCTIVITY
FERROMAGNETIC MATERIALS
FERROMAGNETISM
GALLIUM ARSENIDES
GERMANIUM
HALL EFFECT
HYSTERESIS
LAYERS
MAGNETIC SEMICONDUCTORS
MAGNETIZATION
MANGANESE ARSENIDES
MOLECULAR BEAM EPITAXY
SUBSTRATES
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE 0273-0400 K