Colossal magnetoresistance in La1-xPbxMnO3 thin films prepared by pulsed laser deposition

Holzapfel B, Hütten A, Eckert D, Muller KH, Schultz L (1997)
Journal de Physique IV (Proceedings) 7(C1): C1-637-C1-638.

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Abstract
La1-xPbxMnO3 thin films were prepared by off-axis pulsed laser deposition from stoichiometric targets on SrTiO3 and LaAlO3 substrates using KrF excimer laser radiation (248nm). Thin film deposition was performed at substrate temperatures between 650 degrees C and 850 degrees C and an oxygen pressure of 0.4mbar. Thin films prepared at 750 degrees C were single phase and (001)-oriented. Epitaxial film growth was confirmed by x-ray pole figures and RHEED. Magnetic properties were studied by SQUID magnetometry. Ferromagnetic behavior with Curie temperatures between 200 degrees C and 300 degrees C was observed to be dependent on deposition parameters. Magnetoresistance was examined by standard 4-point measurements in fields up to 8T. As an example, a film with T-c = 193K shows a resistance change ((rho(0) - rho(H)) / rho(0)) of about 25% at T = 300K. For T = 220K and 180 K the changes are 70%.
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Holzapfel B, Hütten A, Eckert D, Muller KH, Schultz L. Colossal magnetoresistance in La1-xPbxMnO3 thin films prepared by pulsed laser deposition. Journal de Physique IV (Proceedings). 1997;7(C1):C1-637-C1-638.
Holzapfel, B., Hütten, A., Eckert, D., Muller, K. H., & Schultz, L. (1997). Colossal magnetoresistance in La1-xPbxMnO3 thin films prepared by pulsed laser deposition. Journal de Physique IV (Proceedings), 7(C1), C1-637-C1-638.
Holzapfel, B., Hütten, A., Eckert, D., Muller, K. H., and Schultz, L. (1997). Colossal magnetoresistance in La1-xPbxMnO3 thin films prepared by pulsed laser deposition. Journal de Physique IV (Proceedings) 7, C1-637-C1-638.
Holzapfel, B., et al., 1997. Colossal magnetoresistance in La1-xPbxMnO3 thin films prepared by pulsed laser deposition. Journal de Physique IV (Proceedings), 7(C1), p C1-637-C1-638.
B. Holzapfel, et al., “Colossal magnetoresistance in La1-xPbxMnO3 thin films prepared by pulsed laser deposition”, Journal de Physique IV (Proceedings), vol. 7, 1997, pp. C1-637-C1-638.
Holzapfel, B., Hütten, A., Eckert, D., Muller, K.H., Schultz, L.: Colossal magnetoresistance in La1-xPbxMnO3 thin films prepared by pulsed laser deposition. Journal de Physique IV (Proceedings). 7, C1-637-C1-638 (1997).
Holzapfel, B, Hütten, Andreas, Eckert, D, Muller, KH, and Schultz, L. “Colossal magnetoresistance in La1-xPbxMnO3 thin films prepared by pulsed laser deposition”. Journal de Physique IV (Proceedings) 7.C1 (1997): C1-637-C1-638.
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