Effect of anisotropic strain on the charge ordering transition in manganite films

Effect of anisotropic strain on the charge ordering transition in manganite films

The substrate induced anisotropic strain was found to have a significant effect on the charge ordering (CO) transition and surface morphology in Bi 0.4 Ca 0.6 Mn O 3 films deposited on (110)- and (111)-oriented Sr Ti O 3 substrates. Effects of film thickness t on the CO transition were further studi...

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Veröffentlicht in:Journal of applied physics 2008-05, Vol.103 (9), p.096105-096105-3
Hauptverfasser: Chen, Y. Z., Sun, J. R., Liang, S., Lv, W. M., Shen, B. G., Wu, W. B.
Format: Artikel
Sprache:eng
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Zusammenfassung:The substrate induced anisotropic strain was found to have a significant effect on the charge ordering (CO) transition and surface morphology in Bi 0.4 Ca 0.6 Mn O 3 films deposited on (110)- and (111)-oriented Sr Ti O 3 substrates. Effects of film thickness t on the CO transition were further studied. The CO transition appears at T CO when t exceeds 50 nm , and develops rapidly to an excellent state as t reaches 100 nm . The distinctive thickness-dependent CO transition has a close relation with the anisotropic strain relaxation process.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.2908222