The structural and magnetic properties of Mn{sub 2-x}Fe{sub x}NiGa Heusler alloys
Journal Article
·
· Journal of Applied Physics
- School of Material Science and Engineering, Hebei University of Technology, Tianjin 300130 (China)
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
- School of Material Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083 (China)
The effect of Fe substitution on the phase transformation and magnetic properties of Mn{sub 2}NiGa has been studied. A single bcc phase was obtained in Mn{sub 2-x}Fe{sub x}NiGa (x=0-0.6). With the substitution of Fe for Mn, the lattice constant decreases gradually. The martensitic transformation can be observed when x=0-0.3. Both the martensitic transformation and austenitic transformation temperatures decrease monotonically with increasing Fe content, which is different from common electron concentration dependence in Ni-Mn-Ga system. The saturation magnetizations M{sub s} of Mn{sub 2-x}Fe{sub x}NiGa in both austenitic and martensitic phases increase obviously with the doping of Fe, while the variation of T{sub C} shows an opposite tendency. Theoretical calculations indicate that both austenitic and martensitic phases are ferrimagnets. The Fe moment varies from positive to negative after the tetragonal distortion, which leads to the decrease of the saturation magnetization.
- OSTI ID:
- 21476080
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 1 Vol. 107; ISSN JAPIAU; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
ALLOYS
ALUMINIUM ALLOYS
AUSTENITIC STEELS
BCC LATTICES
CARBON ADDITIONS
CONCENTRATION RATIO
COPPER ALLOYS
COPPER BASE ALLOYS
CORROSION RESISTANT ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DIMENSIONLESS NUMBERS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FERRIMAGNETIC MATERIALS
GALLIUM ALLOYS
HEUSLER ALLOYS
IRON
IRON ALLOYS
IRON BASE ALLOYS
LATTICE PARAMETERS
LEPTONS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETIZATION
MANGANESE ALLOYS
MARTENSITIC STEELS
MATERIALS
METALS
NICKEL ALLOYS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STEELS
TRANSITION ELEMENT ALLOYS
TRANSITION ELEMENTS
ALLOYS
ALUMINIUM ALLOYS
AUSTENITIC STEELS
BCC LATTICES
CARBON ADDITIONS
CONCENTRATION RATIO
COPPER ALLOYS
COPPER BASE ALLOYS
CORROSION RESISTANT ALLOYS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DIMENSIONLESS NUMBERS
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FERRIMAGNETIC MATERIALS
GALLIUM ALLOYS
HEUSLER ALLOYS
IRON
IRON ALLOYS
IRON BASE ALLOYS
LATTICE PARAMETERS
LEPTONS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MAGNETIZATION
MANGANESE ALLOYS
MARTENSITIC STEELS
MATERIALS
METALS
NICKEL ALLOYS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
STEELS
TRANSITION ELEMENT ALLOYS
TRANSITION ELEMENTS