Structural, magnetic and transport properties of half-metallic ferrimagnet Mn2VGa
Creators
- 1. Magnetism and Magnetic Materials Laboratory, Department of Physics, Indian Institute of Technology (Madras), Chennai 600036 (India)
- 2. Defence Metallurgical Research Laboratory, Hyderabad 500058 (India)
- 3. IFW Dresden, Institute for Metallic Materials, P.O. Box 270116, D-01171 Dresden (Germany)
- 4. UGC-DAE Consortium for Scientific Research, Mumbai Centre, R5-Shed, BARC, Trombay, Mumbai 400 085 (India)
Description
Polycrystalline Mn2VGa samples were synthesized using an arc furnace. X-ray diffraction (XRD) pattern was analyzed using General Structural Analysis System (GSAS) package and the refined lattice parameter was found to be 5.905 A. We found magnetic ordering in the system below 783 K and the spontaneous magnetization was observed to be following the Bloch T3/2 law below 80 K. The magnetic moment per formula unit at 5 K was observed to be 1.88 μB. The temperature variation of the electrical resistance was found to follow the relation Rn=R0n+aTα (α=1.616) and (Rn-normalized electrical resistance) in the temperature range of 25-300 K and we observed almost a temperature independent variation of the electrical resistance below 25 K indicating the absence of spin-flip scattering
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jmmm.2008.06.003Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2008.06.003;
- PII
- S0304-8853(08)00692-6;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 320
- Journal Issue
- 21
- Journal Page Range
- p. 2737-2740
- ISSN
- 0304-8853
- CODEN
- JMMMDC
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40009477
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ARC FURNACES; CHARGED-PARTICLE TRANSPORT; ELECTRIC CONDUCTIVITY; GALLIUM ALLOYS; LATTICE PARAMETERS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MAGNETIZATION; MANGANESE ALLOYS; POLYCRYSTALS; SPIN FLIP; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; TEMPERATURE RANGE 0400-1000 K; VANADIUM ALLOYS; X-RAY DIFFRACTION
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; CRYSTALS; DIFFRACTION; ELECTRIC FURNACES; ELECTRICAL PROPERTIES; FURNACES; PHYSICAL PROPERTIES; RADIATION TRANSPORT; SCATTERING; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.