Ferromagnetic to spin glass cross over in (La,Tb)(2/3)Ca1/3MnO3
| Title | Ferromagnetic to spin glass cross over in (La,Tb)(2/3)Ca1/3MnO3 |
| Publication Type | Journal Article |
| Year of Publication | 2009 |
| Authors | C. Sankar, R, Vijayanand, S, Joy, PAlias |
| Journal | Solid State Sciences |
| Volume | 11 |
| Issue | 3 |
| Pagination | 714-718 |
| Date Published | MAR |
| ISSN | 1293-2558 |
| Keywords | Ferromagnetism, Magnetic clusters, Manganites, perovskite, Spin glass |
| 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 approximate to 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. (C) 2008 Elsevier Masson SAS. All rights reserved. |
| DOI | 10.1016/j.solidstatesciences.2008.10.002 |
| Type of Journal (Indian or Foreign) | Foreign |
| Impact Factor (IF) | 1.828 |
Divison category:
Physical and Materials Chemistry