Sudheendra, L. ; Seikh, Md. Motin ; Raju, A .R. ; Narayana, Chandrabhas (2001) An infrared spectroscopic study of the low-spin to intermediate-spin state (1A1–3T1) transition in rare earth cobaltates, LnCoO3 (Ln = La, Pr and Nd) Chemical Physics Letters, 340 (3-4). pp. 275-281. ISSN 0009-2614
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Official URL: https://www.sciencedirect.com/science/article/abs/...
Related URL: http://dx.doi.org/10.1016/S0009-2614(01)00439-0
Abstract
Low-spin (LS) to Intermediate-spin (IS) state transitions in crystals of LnCoO3 (Ln = La, Pr and Nd) have been investigated by variable temperature infrared spectroscopy. The spectra reveal the occurrence of the transition around 120, 220 and 275 K, respectively, in LaCoO3,PrCoO3 and NdCoO3, at which temperatures the intensities of the stretching and the bending modes associated with the LS state decrease, accompanied by an increase in the intensities of the bands due to IS state. The characteristic frequencies of both the spin states decrease with increase in temperature, showing anomalies around the transition.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 113540 |
| Deposited On: | 23 Apr 2018 10:27 |
| Last Modified: | 23 Apr 2018 10:27 |
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