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ANSTO Publications Online >
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Please use this identifier to cite or link to this item:
http://apo.ansto.gov.au/dspace/handle/10238/2751
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| Title: | Effect of non-magnetic dilution of the Tb sublattice in TbCo3B2. |
| Authors: | Wolfson, EJ Caspi, EN Ettedgui, H Shaked, H Avdeev, M |
| Keywords: | Neutron Diffraction Dilution Magnetic Moments Terbium Crystallography X-Ray Diffraction |
| Issue Date: | 20-Jan-2010 |
| Publisher: | Institute of Physics |
| Citation: | Wolfson, E. J., Caspi, E. N., Ettedgui, H., Shaked, H., & Avdeev, M. (2010). Effect of non-magnetic dilution of the Tb sublattice in TbCo3B2. Journal of Physics-Condensed Matter, 22(2), 7. |
| Abstract: | Solid solutions of Tb1-xYxCo3B2 (x = 0.05, 0.1, 0.25, 0.4 and 0.5) were studied by neutron powder diffraction, x-ray diffraction, AC susceptibility and SQUID magnetization measurements. Their magnetic and crystallographic properties were deduced and examined together with those previously published for the end compounds (x = 0, 1). These solid solutions have hexagonal symmetry and are paramagnetic at RT, and undergo a magnetic ordering transition of the Co sublattice, with the magnetic moments along the hexagonal axis, at T-Co similar to 150(15) K, independent of Y concentration. A second magnetic ordering transition of the Tb sublattice T-Tb <= 30 K accompanied by the rotation of the magnetic moments towards the basal plane, was observed for solid solutions with Y concentration x <= 0.25. This transition was also found to be accompanied by a crystallographic symmetry decrease. Unexpectedly, neutron powder diffraction showed that the magnitude of the ordered magnetic moment of the Tb ion decreases with Tb concentration. © 2010, Institute of Physics |
| URI: | http://dx.doi.org/10.1088/0953-8984/22/2/026001 http://apo.ansto.gov.au/dspace/handle/10238/2751 |
| ISSN: | 0953-8984 |
| Appears in Collections: | Journal Articles |
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