| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1506221 | Solid State Sciences | 2009 | 5 Pages |
Abstract
In the series La2/3−xTbxCa1/3MnO3, it is known that the compositions are ferromagnetic for smaller values of x and show spin glass characteristics at larger values of x. Our studies on the magnetic properties of various compositions in the La2/3−xTbxCa1/3MnO3 series show that the cross over from ferromagnetic to spin glass region takes place above x ≈ 1/8. Also, a low temperature anomaly at 30 K, observed in the ac susceptibility curves, disappears for compositions above this critical value of x. A mixed phase region coexists in the narrow compositional range 0.1 ≤ x ≤ 0.125, indicating that the ferromagnetic to spin glass cross over is not abrupt.
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Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
C. Raj Sankar, S. Vijayanand, P.A. Joy,