Parashar, S. ; Moreira dos Santos, A. ; Raju, A. R. ; Lange, F. F. ; Cheetham, A. K. ; Rao, C. N. R. (2000) Charge-ordering in thin films of bilayered rare earth manganates International Journal of Inorganic Materials, 2 (6). pp. 651-655. ISSN 1466-6049
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S14666...
Related URL: http://dx.doi.org/10.1016/S1466-6049(00)00095-7
Abstract
Thin films of bilayered manganates of the formula LnSr2Mn2O7 (Ln=rare-earth), deposited on LaAlO3(100) substrates by nebulized spray pyrolysis, show charge-ordering transitions in the resistivity data. The transition temperatures decrease from 205 K to 185 K as the rare-earth ionic radii decrease from Ln=La to Gd. While magnetic-fields up to 6 tesla have little effect on the charge-ordering transition, small electric currents prevent the onset of the charge-ordered state. Furthermore, the resistance decreases markedly with increasing current, with nonlinear behavior, in polycrystalline films deposited on Si(100) substrates.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | A. Layered Compounds; Thin Films; D. Electrical Properties; Magnetic Properties |
| ID Code: | 42236 |
| Deposited On: | 02 Jun 2011 07:05 |
| Last Modified: | 02 Jun 2011 07:05 |
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