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Magnetic Compton scattering study of the magnetocaloric material Gd7Pd3
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Shenton-Taylor, C., Duffy, J. A., Taylor, J. W., Steer, C. A., Timms, David N., Cooper, Malcolm and Blaauw, L. V. (2007) Magnetic Compton scattering study of the magnetocaloric material Gd7Pd3. Journal of Physics: Condensed Matter, Vol.19 (No.18). Article: 186208. doi:10.1088/0953-8984/19/18/186208 ISSN 0953-8984.
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Official URL: http://dx.doi.org/10.1088/0953-8984/19/18/186208
Abstract
The spin-dependent momentum density of Gd7Pd3 was probed by the magnetic Compton scattering technique with elliptically polarized synchrotron radiation. A contribution to the spin moment from Pd 4d electrons was observed, at 2 and 280 K, alongside a large Gd 4f moment and a smaller Gd 5d moment. The total spin moment, at 2 K, was determined as 50.8 +/- 0.7 mu(B) (f.u.)(-1). The Gd 4f contribution to the spin moment was determined as 43.4 +/- 1.8 mu(B) (f.u.)(-1), the Gd 5d moment as 4.4 +/- 0.7 mu B (f.u.)(-1) and the Pd 4d spin moment contribution as 2.9 +/- 1.1 mu B (f.u.)(-1), where f.u. represents a formula unit. At 280 K the total spin moment was 27.3 +/- 0.9 mu(B) (f.u.)(-1) with individual contributions determined as a Gd 4f spin moment of 23.8 +/- 1.1 mu B (f.u.)(-1), a Gd 5d contribution of 2.2 +/- 0.5 mu B (f.u.)(-1) and a Pd 5d spin moment of 1.2 +/- 0.6 mu B (f.u.)(-1).
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Journal of Physics: Condensed Matter | ||||
| Publisher: | Institute of Physics Publishing Ltd. | ||||
| ISSN: | 0953-8984 | ||||
| Official Date: | 9 May 2007 | ||||
| Dates: |
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| Volume: | Vol.19 | ||||
| Number: | No.18 | ||||
| Number of Pages: | 7 | ||||
| Page Range: | Article: 186208 | ||||
| DOI: | 10.1088/0953-8984/19/18/186208 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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