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Ferro I phase and gadolinium
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Collingwood, Joanna F., Palmer, Stuart B., Lees, Martin R., Edwards, C., Santos, J. A. (Jorge A.), Sousa, J. B. and Jiles, David. (2009) Ferro I phase and gadolinium. Physical Review B, Vol.79 (No.10). pp. 104401-1. doi:10.1103/PhysRevB.79.104401 ISSN 1098-0121.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.79.104401
Abstract
Certain Gd alloys, such as Gd-Y, are known to exhibit an apparent "double ferromagnetism" in which the c axis component orders on cooling from the paramagnetic phase (T-C1), while the basal-plane component remains effectively paramagnetic. Subsequently the basal-plane component orders at a lower temperature (T-C2). Our measurements of low-field ac susceptibility and magnetization for high-quality Gd and Gd-Y single crystals suggest that either the behavior originally used to identify ferro I, namely, the concave-upward growth of the a axis moment in the approach on cooling to T-SR, is not necessarily an indicator of the phase, or that ferro I is also present in pure Gd. Of the several models that exist to describe ferro I, the results from this study favor the random-cone model.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TA Engineering (General). Civil engineering (General) |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
| Library of Congress Subject Headings (LCSH): | Gadolinium, Ferromagnetism, Curie temperature, Magnetic susceptibility, Magnetization, Paramagnetism, Yttrium alloys | ||||
| Journal or Publication Title: | Physical Review B | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1098-0121 | ||||
| Official Date: | March 2009 | ||||
| Dates: |
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| Volume: | Vol.79 | ||||
| Number: | No.10 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | pp. 104401-1 | ||||
| DOI: | 10.1103/PhysRevB.79.104401 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) |
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