Lahiri, Debdutta ; Shibata, Tomohiro ; Chattopadhyay, Soma ; Singh, Ravi Shankar ; Sharma, Surinder M. ; Maiti, Kalobaran (2009) Probing the involvement of non-magnetic Sr ion in the ferromagnetic transition of SrRuO3, using XAFS Journal of Physics Conference Series, 190 (1). No pp. given. ISSN 1742-6588
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Official URL: http://iopscience.iop.org/1742-6596/190/1/012099
Related URL: http://dx.doi.org/10.1088/1742-6596/190/1/012099
Abstract
Recent calculations by Maiti et al. have shown that non-magnetic ions like Sr/Ca in Sr/Ca ruthenates may not be mere spectators in the magnetic transitions but their strong hybridization with O atoms may modify the magnetic ground state by distorting the Ru-O-Ru bond angle. Our XAFS results at Sr and Ru K-edges on SrRuO3 indeed demonstrate that the Debye Waller factor for the Sr-coupled bonds viz. Sr-Sr evolve most significantly across the ferromagnetic transition, almost replicating the magnetization curve while the Ru-octahedra evolves only gradually. This clearly establishes the definite role of Sr disorder in the ferromagnetic transition.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 48201 |
| Deposited On: | 14 Jul 2011 08:30 |
| Last Modified: | 17 Jul 2012 16:14 |
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