Published May 2006
| Version v1
Journal article
The thermal expansion coefficient and volume magnetostriction of Heusler Ni2MnGa alloys
Creators
- 1. Chelyabinsk State University, 454021 Chelyabinsk (Russian Federation)
- 2. Institute of Radioengineering and Electronics of RAS, 125009 Moscow (Russian Federation)
- 3. Institute of Fluid Science, Tohoku University, Sendai 980-8577 (Japan)
Description
In this work the thermal expansion coefficient of Ni2MnGa alloy was experimentally determined. It was shown that the thermal expansion coefficient has a peak at the point of magnetic phase transition. The value of thermal expansion coefficient jump at Curie point is Δκ=1.8x10-5 K-1. From the phenomenological Ginzburg-Landau theory of a magnetic second-order phase transition the expression for a jump of thermal expansion coefficient in Curie point was obtained. From the comparison of experimental and theoretical jumps of thermal expansion the value of volume magnetostriction for Ni2MnGa alloy was determined: B 1∼20x109 erg/cm3
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2005.10.192;
- PII
- S0304-8853(05)01013-9;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 300
- Journal Issue
- 1
- Journal Page Range
- p. e459-e461
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- 3. Moscow international symposium on magnetism 2005
- Dates
- 26-30 Jun 2005
- Place
- Moscow (Russian Federation)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37104022
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CURIE POINT; FERROMAGNETIC MATERIALS; GALLIUM ALLOYS; GINZBURG-LANDAU THEORY; MAGNETOSTRICTION; MANGANESE ALLOYS; NICKEL ALLOYS; PHASE TRANSFORMATIONS; THERMAL EXPANSION
- Descriptors DEC
- ALLOYS; EXPANSION; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; MATERIALS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION TEMPERATURE
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.