The effects of the growth conditions and the lattice strains of pulsed laser deposited (PLD) La0.7Sr0.3MnO3 (LSMO) thin films upon the magnetic behavior have been studied using magneto-optical Kerr effect (MOKE) at room temperature. First, the structural quality of the films was investigated by XRD and the surface morphology was studied using AFM. It is shown that both surface morphology and crystallinity are optimized when the target-to-substrate distance and the oxygen pressure are chosen in agreement with a PD3 scaling law. Secondly, hysteresis loops have been recorded along the ,  and  directions and the easy directions of magnetization have been determined for both stress states, i.e. tension on SrTiO3 and compression on LaAlO3. In tensile films, the whole plane is found to be easy, whereas, in compressive films, the easy axis should be an intermediate direction between the film’s plane and its normal. Moreover, tensile films deposited under optimized growth conditions exhibit the largest anisotropy coefficient (K1eff = -6.9×105 erg/cm3).
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T. Venkatesan, M. Rajeswari, Z. Dong, S. B. Ogale and R. Ramesh, Phil. Trans. R. Soc. Lond. A 356, 1661–1680(1998).
J. Wolfman, A. M Haghiri-Gosnet, B. Raveau, C. Vieu, E. Cambril, A. Cornette and H. Launois, J. Appl. Phys. 89, 6955 (2001).
Y. Suzuki, H. Y. Hwang, S-W. Cheong, T. Siegrist, R. B. van Dover, A. Asamitsu and Y. Tokura, J. Appl. Phys. 83, 7064 (1998).
Y. Suzuki, H. Y. Hwang, S-W. Cheong and R. B. van Dover, Appl. Phys. Lett. 71, 140 (1997).
A. M Haghiri-Gosnet, M. Koubaa, R. Desfeux, P. Lecoeur, W. Prellier and B. Mercey, submitted to Thin Solid Films.
A. M Haghiri-Gosnet, M. Hervieu, Ch Simon, B. Mercey and B. Raveau, J. Appl. Phys. 88 (2000) 3545.
H.S. Kim and H.S. Kwok, Appl. Phys. Lett. 61, 2234 (1992).
O. I. Lebedev, G. Van. Tendeloo, S. Amelinckx, H. L. Ju, Kannan and M. Krishnan, Philosophical Magasine 80, 673 (2000).
J Ferré, G Pénissard, C Marlière, D. Renard, P. Beauvillain and J. P. Renard, Appl. Phys. Lett. 56, 1588 (1990).
J O’Donnell, M. S. Rzchowski, J. N. Eckstein and I. Bosovic, Appl. Phys. Lett. 72, 1775 (1998).
C. Kwon, M. C. Robson, K.-C. Kim, J. Y. Gu, S. E. Lofland, S. M. Bhagat, Z. Trajanovic, M. Rajeswari, T. Venkatesan, A. R. Kratz, R. D. Gomez and R. Ramesh, J. Magn. Magn. Matter. 172, 229 (1997).
F. Tsui, M. C. Smoak, T. K. Nath and C. B. Eom, Appl. Phys. Lett. 76, 2421 (2000).
L. Cagnon, T. Devolder, R. Cortes, A. Morrone, J. E. Schmidt, C. Chappert and P. Allongue, Phys. Rev. B 63, 104419 (2001).
L. M. Berndt, Vincent Balbarin and Y. Suzuki, Appl. Phys. Lett. 77, 2903 (2000).
T. K. Nath, R. A. Rao, D. Lavric, C. B. Eom, L. Wu and F. Tsui, Appl. Phys. Lett. 74, 1645 (1999).
L. B. Steren, M. Sirena and J. Guimpel, J. Appl. Phys. 87, 6755 (2000).
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Koubaa, M., Haghiri-Gosnet, A.M., Lecoeur, P. et al. Magnetic Anisotropy of Strained La0.7Sr0.3MnO3 Thin Films Studied by MOKE. MRS Online Proceedings Library 690, F9.9 (2001). https://doi.org/10.1557/PROC-690-F9.9