Antiferromagnetic rare earth coupling in Pr1-xTbxNi and Nd1-xTbxNi single crystals
Creators
- 1. Graduate School of Science and Engineering, University of Toyama, Gofuku 3190, Toyama 930-8555 (Japan)
- 2. Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581 (Japan)
- 3. School of Physical, Environmental and Mathematical Sciences, University of New South Wales, Australian Defence Force Academy, Canberra, ACT 2600 (Australia)
Description
Magnetization and specific heat measurements were carried out on pseudo-binary Pr1-xTbxNi (x = 0.0, 0.1) and Nd1-xTbxNi (x = 0.0, 0.05, 0.1, 0.15) single crystals. The magnetic transition temperatures for Pr1-xTbxNi increased with x, whereas those for Nd1-xTbxNi decreased slightly as x increased. The effective magnetic moments, deduced from the temperature dependence of susceptibility, increased with x for both systems. The saturation magnetizations observed at the magnetically easy directions for all samples suggest that the magnetic coupling between the Pr (or Nd) and Tb moments is antiferromagnetic. A noticeable increase in magnetization in higher external field, onset at 5 T, is observed for Pr0.9Tb0.1Ni and indicates that there is a rearrangement of the magnetic moments. Calculations of the crystal electric field effect of Pr and Tb in Pr1-xTbxNi were carried out using a simple point-charge model.
Availability note (English)
Available from http://dx.doi.org/10.1016/j.jallcom.2009.07.132Additional details
Identifiers
- DOI
- 10.1016/j.jallcom.2009.07.132;
- PII
- S0925-8388(09)01499-6;
Publishing Information
- Journal Title
- Journal of Alloys and Compounds
- Journal Volume
- 487
- Journal Issue
- 1-2
- Journal Page Range
- p. 5-10
- ISSN
- 0925-8388
- CODEN
- JALCEU
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41122907
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ANISOTROPY; ANTIFERROMAGNETISM; CRYSTAL GROWTH; MAGNETIC MOMENTS; MAGNETIZATION; MONOCRYSTALS; NEODYMIUM ALLOYS; NICKEL ALLOYS; POINT CHARGE; PRASEODYMIUM ALLOYS; SPECIFIC HEAT; TEMPERATURE DEPENDENCE; TERBIUM ALLOYS; TRANSITION TEMPERATURE
- Descriptors DEC
- ALLOYS; CRYSTALS; ELECTRIC CHARGES; MAGNETISM; PHYSICAL PROPERTIES; RARE EARTH ALLOYS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT ALLOYS
Optional Information
- Copyright
- Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.