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Dostęp zamkniętyDeformations of the $α$-Fe$\sb 2$O$\sb 3$ rhombohedral lattice across the N\'eel temperature
| cris.lastimport.scopus | 2024-02-12T20:32:23Z |
| dc.abstract.en | High-resolution synchrotron radiation powder diffraction patterns of $α$-Fe$\sb 2$O$\sb 3$ measured between room temperature and 1100K, \it i.e. above the N\'eel temperature \it T$\sb N$ = 950K, have been analyzed. The integral breadths of the Bragg peaks show a \it hkl-dependent anisotropy, both below and above \it T$\sb N$. This anisotropy can be quantitatively described by using a statistical peak-broadening model [Stephens (1999). \it J. Appl. Cryst. \bf 32, 281]. Model calculations show that the rhombohedral $α$-Fe$\sb 2$O$\sb 3$ lattice is deformed and the deformation leads to a monoclinic lattice with the unique monoclinic axis along the hexagonal [110] direction both below and above \it T$\sb N$. The monoclinic symmetry of bulk $α$-Fe$\sb 2$O$\sb 3$ is compatible with $α$-Fe$\sb 2$O$\sb 3$ nanowire growth along the [110] direction reported in Fu \it et al. [\it Chem. Phys. Lett. (2001), \bf 350, 491]. |
| dc.affiliation | Uniwersytet Warszawski |
| dc.contributor.author | Fabrykiewicz, Piotr |
| dc.contributor.author | Stękiel, Michał |
| dc.contributor.author | Przeniosło, Radosław |
| dc.contributor.author | Sosnowska, Izabela |
| dc.date.accessioned | 2024-01-24T21:19:22Z |
| dc.date.available | 2024-01-24T21:19:22Z |
| dc.date.issued | 2017 |
| dc.description.finance | Nie dotyczy |
| dc.identifier.doi | 10.1107/S2052520616017935 |
| dc.identifier.issn | 2052-5206 |
| dc.identifier.uri | https://repozytorium.uw.edu.pl//handle/item/104460 |
| dc.language | eng |
| dc.pbn.affiliation | physical sciences |
| dc.relation.ispartof | Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials |
| dc.rights | ClosedAccess |
| dc.sciencecloud | nosend |
| dc.subject.en | Neel temperature high-resolution synchrotron powder diffraction peak-broadening ferromagnetism |
| dc.title | Deformations of the $α$-Fe$\sb 2$O$\sb 3$ rhombohedral lattice across the N\'eel temperature |
| dc.type | JournalArticle |
| dspace.entity.type | Publication |