Magnetovolume effects in Dy2Fe17-xMnx
- 1. School of Physical, Environmental and Mathematical Sciences, University of New South Wales, Australian Defence Force Academy, Canberra, ACT 2600 (Australia)
- 2. Departmento de Fisica de la Materia Condensada-Instituto de Ciencia de Materiales de Aragon, Universidad de Zaragoza-CSIC, Pedro Cerbuna 12, 50009 Zaragoza (Spain)
Description
We have investigated the structural and magnetic properties of Dy2Fe17-xMnx compounds (x=0-5.0) by X-ray diffraction, linear thermal expansion (LTE) and magnetization measurements. Compared with Dy2Co17-xMnx compounds for which a linear increase of the unit cell volume with increasing Mn fraction is found, the composition dependence of the unit cell volume in the Dy2Fe17-xMnx series exhibits a relative maximum around x∼0.5 before increasing monotonically for x>=2; this behaviour can be ascribed to the existence of spontaneous volume magnetostriction as confirmed by LTE measurements. The Curie temperature (Tc) remains essentially constant (around 370K) for Mn content up to x=1 before decreasing steadily with increasing x, down to TC=232K for Dy2Fe12Mn5. The 3d-sublattice magnetization decreases monotonically with increasing Mn content
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2006.10.537;
- PII
- S0304-8853(06)01742-2;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 310
- Journal Issue
- 2
- Journal Page Range
- p. e569-e571
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- 17. international conference on magnetism
- Dates
- 20-25 Aug 2006
- Place
- Kyoto (Japan)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39029864
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- COBALT ALLOYS; CURIE POINT; DYSPROSIUM ALLOYS; IRON ALLOYS; MAGNETIZATION; MAGNETOSTRICTION; MANGANESE ALLOYS; THERMAL EXPANSION; X-RAY DIFFRACTION
- Descriptors DEC
- ALLOYS; COHERENT SCATTERING; DIFFRACTION; EXPANSION; MAGNETIC PROPERTIES; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; SCATTERING; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS; TRANSITION TEMPERATURE
Optional Information
- Copyright
- Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.