Mangalam, R. V. K. ; Pradhan, G. K. ; Narayana, Chandrabhas ; Sundaresan, A. (2008) Spin state transition in the ferromagnet Sr0.9Ce0.1CoO2.85 Solid State Communications, 146 (3-4). pp. 110-114. ISSN 0038-1098
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Official URL: https://www.sciencedirect.com/science/article/pii/...
Related URL: http://dx.doi.org/10.1016/j.ssc.2008.02.007
Abstract
The sample Sr0.9Ce0.1CoO2.85, prepared by a chemical method, has a cubic perovskite structure with lattice parameter, Åa = 3.8368(2)Å. The effective magnetic moment obtained from temperature dependent paramagnetic susceptibility suggests that the cobalt ions, Co3+ (50%) and Co4+ (50%), are in the Intermediate Spin states (IS), Co3+ (t2g5eg1) and Co4+ (t2g4eg1). Further, this compound undergoes a ferromagnetic as well as a metal–metal transition at TC∼160 K which coincides with a spin state transition of cobalt ions that is likely to be associated with the IS state of Co3+ (t2g5eg1) ions going to the Low Spin (LS) state (t2g6eg0) as inferred from the softening of infrared optical phonons.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | A. Ferromagnet; C. Heat Capacity; D. Magnetoresistance; D. Spin State Transition |
| ID Code: | 113719 |
| Deposited On: | 30 Apr 2018 11:50 |
| Last Modified: | 30 Apr 2018 11:50 |
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