Published January 2006
| Version v1
Journal article
Spin correlations and a mesoscopic structure in Ni-Mn-Ga
Creators
- 1. Russian Academy of Sciences, Konstantinov St. Petersburg Nuclear Physics Institute (Russian Federation)
- 2. National Academy of Sciences of Ukraine, Institute of Metal Physics (Ukraine)
- 3. Laboratoire Leon Brillouin (France)
- 4. Russian Academy of Sciences, Institute of Radio Engineering and Electronics (Russian Federation)
Description
The mesoscopic structures of the Heusler alloys Ni49.1Mn29.4Ga21.5 and Ni2MnGa are studied by small-angle polarized neutron scattering in the temperature range 15 < T < 400 K. The characteristic temperatures of phase transformations (ferromagnetic, martensitic, and premartensitic transformations) and the characteristic sizes of mesoscopic inhomogeneities in them have been determined. Differences in the spin dynamics of these phases and magnetic-nuclear interference upon neutron scattering have been revealed. The evolutions of the mesoscopic structures in the nonstoichiometric and stoichiometric alloys are found to be substantially different
Additional details
Identifiers
Publishing Information
- Journal Title
- Journal of Experimental and Theoretical Physics
- Journal Volume
- 102
- Journal Issue
- 1
- Journal Page Range
- p. 102-113
- ISSN
- 1063-7761
- CODEN
- JTPHES
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39081826
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CORRELATIONS; GALLIUM ALLOYS; HEUSLER ALLOYS; INTERFERENCE; NEUTRON DIFFRACTION; NICKEL ALLOYS; PHASE TRANSFORMATIONS; SPIN; STOICHIOMETRY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K
- Descriptors DEC
- ALLOYS; ALUMINIUM ALLOYS; ANGULAR MOMENTUM; COHERENT SCATTERING; COPPER ALLOYS; COPPER BASE ALLOYS; CORROSION RESISTANT ALLOYS; DIFFRACTION; MANGANESE ALLOYS; PARTICLE PROPERTIES; SCATTERING; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2006 Publishing, Inc.