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Different effects of Ce-doping on orbital and spin ordering in perovskite vanadate Sm1-xCexVO3.
- Source :
-
Chinese Physics B . 2013, Vol. 22 Issue 4, p1-4. 4p. - Publication Year :
- 2013
-
Abstract
- The effects of Ce-doping on the phase transition of the orbital/spin ordering (OO/SO) are studied through the structural, magnetic, and electrical transport measurements of perovskite vanadate Sm1-xCexVO3. The measurements of structure show that the cell volume decreases as x ≤ 0.05, and then increases as Ce-doping level increases further. The OO state exists but is suppressed progressively in the sample with x ≤ 0.2 and disappears as x > 0.2. The temperature at which the C-type SO transition is present increases monotonically with Ce-doping level increasing. The temperature dependence of resistivity for each of the samples shows a semiconducting transport behavior and the transport can be well described by the thermal activation model. The activation energy first decreases as x ≤ 0.2, and then increases for further doping. The obtained results are discussed in terms of the mixed-valent state of the doped-Ce ions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 16741056
- Volume :
- 22
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Chinese Physics B
- Publication Type :
- Academic Journal
- Accession number :
- 90156255
- Full Text :
- https://doi.org/10.1088/1674-1056/22/4/047501