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http://nopr.niscpr.res.in/handle/123456789/26995| Title: | Effect of Substitution on the Metal-Insulator Transition Temperature in Colossal Magneto-resistive Materials |
| Authors: | Panwar, Neeraj Sen, Vikram Kumar, Ajay Agarwal, S K Pandya, D K |
| Issue Date: | Dec-2004 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The insulator-metal transition temperature TMI of the colossal magneto-resistive materials with the perovskite structure (ABO3) depends upon the tolerance factor t and the lattice distortion associated with it. In this paper we report the effect of lattice distortion on TMI by tuning the tolerance factor t through substitution of different trivalent and divalent ions at A and B sites of La2/3Ca1/3,MnO3 type colossal magneto-resistive materials. The results have been analyzed in terms of a competition between double exchange and super-exchange mechanisms. |
| Page(s): | 236-238 |
| ISSN: | 0975-2412 (Online); 0771-7706 (Print) |
| Appears in Collections: | BVAAP Vol.12(2) [December 2004] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| BVAAP 12(2) 236-238.pdf | 440.84 kB | Adobe PDF | View/Open |
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