Magnetostriction and thermal expansion of Er2Fe14B and its hydride
Creators
- 1. M.V. Lomonosov Moscow State University, Leninskie Gory, 119992 Moscow (Russian Federation) and International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wroclaw (Poland)
- 2. International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-421 Wroclaw (Poland)
- 3. A.A. Baikov Institute of Metallurgy and Material Science RAS, Leninski pr. 49, 119991 Moscow (Russian Federation)
- 4. M.V. Lomonosov Moscow State University, Leninskie Gory, 119992 Moscow (Russian Federation)
- 5. Institute of Low Temperature and Structure Research, 59-950 Wroclaw 2, P.O. Box 1410 (Poland)
Description
The magnetostriction and thermal expansion of the Er2Fe14BHx (x=0, 2.5) intermetallic compounds were investigated. Measurements were carried out by the strain-gauge method in the temperature range 77-420K in magnetic fields up to 1.2T. It was found that the longitudinal magnetostriction λ-bar (T) of the host compound significantly increases in value in the temperature range 320-365K that mainly connected with the contribution of the Fe-sublattice to the total magnetostriction of the Er2Fe14B. The temperature dependencies of the linear thermal expansion coefficient α(T) measured for the Er2Fe14B compound and for its hydride Er2Fe14BH2.5 have anomalies in the range of the spin-reorientation transition (SRT). It has been shown that Er2Fe14B compound has an invar effect in the temperature range 77-280K
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2005.10.181;
- PII
- S0304-8853(05)01002-4;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 300
- Journal Issue
- 1
- Journal Page Range
- p. e418-e421
- 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
- 37104011
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ERBIUM BORIDES; ERBIUM HYDRIDES; INTERMETALLIC COMPOUNDS; INVAR; IRON BORIDES; IRON HYDRIDES; MAGNETIC FIELDS; MAGNETOSTRICTION; STRAIN GAGES; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; THERMAL EXPANSION
- Descriptors DEC
- ALLOYS; BORIDES; BORON COMPOUNDS; ERBIUM COMPOUNDS; EXPANSION; HYDRIDES; HYDROGEN COMPOUNDS; IRON ALLOYS; IRON BASE ALLOYS; IRON COMPOUNDS; MAGNETIC PROPERTIES; MEASURING INSTRUMENTS; NICKEL ALLOYS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Copyright
- Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.