Neutron polarization analysis on the multiferroic TbMn<subscript>2</subscript>O<subscript>5</subscript>
In: Physica B, Jg. 404 (2009-09-01), Heft 17, S. 2517-2519
academicJournal
Zugriff:
Abstract: Polycrystalline TbMn2O5 was prepared by the standard solid-state reaction method and characterized by powder X-ray diffraction and magnetization to assure it is of single phase. Heat capacity measurements on the compound reveal an antiferromagnetic phase transition at ∼45K. A broad peak below ∼6K in the heat capacity measurements corresponds to the crossover transition of Tb3+ ordering. To confirm these magnetic orderings, neutron powder diffractions on TbMn2O5 with XYZ neutron polarization analysis were performed at the diffuse neutron scattering (DNS) spectrometer, FRJ-II, by using neutron wavelength of 4.8Å in the temperature range of 1.8–250K. Magnetic scattering was separated from nuclear coherent and spin incoherent scattering contributions. Long-range ordered magnetic peaks were observed below ∼39K which is consistent with the heat capacity results. The drastic increasing intensities below ∼6K indicate the ferromagnetic transition in Tb3+ orderings. [Copyright &y& Elsevier]
| Titel: |
Neutron polarization analysis on the multiferroic TbMn<subscript>2</subscript>O<subscript>5</subscript>
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| Autor/in / Beteiligte Person: | Chang, L.J. ; Su, Y. ; Schweika, W. ; Brückel, Th. ; Chen, Y.Y. ; Jang, D.S. ; Liu, R.S. |
| Zeitschrift: | Physica B, Jg. 404 (2009-09-01), Heft 17, S. 2517-2519 |
| Veröffentlichung: | 2009 |
| Medientyp: | academicJournal |
| ISSN: | 0921-4526 (print) |
| DOI: | 10.1016/j.physb.2009.06.011 |
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