Magnetic properties of full-Heusler alloy Co{sub 2}Fe{sub 1-x}Mn{sub x}Al films grown by molecular-beam epitaxy

Journal Article · Mon Dec 06 00:00:00 EST 2010 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3525376· OSTI ID:21518203

Meng, K K; Wang, S L; Xu, P F; Chen, L; Zhao, J H ^[1]; Yan, W S ^[2]

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1. State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing 100083 (China)
2. National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui 230029 (China)

We have investigated magnetic properties of single-crystalline full-Heusler alloy Co{sub 2}Fe{sub 1-x}Mn{sub x}Al films (0<x<1) grown on GaAs (001) by molecular-beam epitaxy at different temperatures. It is found that as x increases, the films grown at 160 deg. C have complex magnetic phases, but show pure ferromagnetic properties when grown at 280 deg. C. We attribute this magnetic behavior to the competition between ferromagnetic and antiferromagnetic Mn-Mn interactions, which are proved by x-ray magnetic circular dichroism measurements. Moreover, we have investigated in-plane magnetic anisotropies of Co{sub 2}Fe{sub 1-x}Mn{sub x}Al films with pure ferromagnetic phases and deduced the corresponding anisotropy constants which also remarkably depend on x.

• OSTI ID: 21518203
• Journal Information: Applied Physics Letters, Vol. 97, Issue 23; Other Information: DOI: 10.1063/1.3525376; (c) 2010 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
ANISOTROPY
ANTIFERROMAGNETIC MATERIALS
ANTIFERROMAGNETISM
COBALT ALLOYS
FERROMAGNETIC MATERIALS
FILMS
HEUSLER ALLOYS
IRON ALLOYS
MAGNETIC CIRCULAR DICHROISM
MAGNETIC PROPERTIES
MANGANESE ALLOYS
MOLECULAR BEAM EPITAXY
MONOCRYSTALS
QUATERNARY ALLOY SYSTEMS
X RADIATION
ALLOY SYSTEMS
ALLOYS
COPPER ALLOYS
COPPER BASE ALLOYS
CORROSION RESISTANT ALLOYS
CRYSTAL GROWTH METHODS
CRYSTALS
DICHROISM
ELECTROMAGNETIC RADIATION
EPITAXY
IONIZING RADIATIONS
MAGNETIC MATERIALS
MAGNETISM
MATERIALS
PHYSICAL PROPERTIES
RADIATIONS
TRANSITION ELEMENT ALLOYS