Abstract
The lateral unit cell parameter in nanodimensional La0.67Ca0.33MnO3 (LCMO) films grown on (001)-oriented LaAlO3 substrates is significantly (approximately 4%) smaller than the value measured along the normal to the substrate plane. At T < 140 K, the temperature dependence of the resistivity ρ of LCMO films follows the relation ρ − ρ (T = 4.2 K) ≈ρ2(H)T 4.5, where ρ2 is independent of the temperature but decreases with increasing magnetic field H. It is shown that this decrease is related both to a decay of the spin waves in ferromagnetic domains and to the transformation of antiferromagnetic phase inclusions into ferromagnetic ones.
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References
M. Pannetier, C. Fermon, G. Le Goff, J. Simola, and T. Kerr, Science 304(5677), 1648 (2004).
S. S. P. Parkin, K. P. Roche, M. G. Samant, P. M. Rice, R. B. Beyers, et al., J. Appl. Phys. 85, 5828 (1999).
Yu. A. Boikov, R. Gunnarsson, and T. Claeson, J. Appl. Phys. 96, 435 (2004).
Yu. A. Boikov and V. A. Danilov, Fiz. Tverd. Tela (St. Petersburg) 48, 1447 (2006) [Phys. Solid State 48, 1533 (2006)].
T. I. Kamins, J. Appl. Phys. 42, 4357 (1971).
C. J. Lu, Z. L. Wang, C. Kwon, and Q. X. Jia, J. Appl. Phys. 88, 4032 (2000).
G.-Q. Gong, C. Canedy, G. Xiao, J. Z. Sun, A. Gupta, and W. J. Gallagher, Appl. Phys. Lett. 67, 1783 (1995).
J. B. Goodenough, Phys. Rev. 100, 564 (1955).
K. Kubo and N. Ohata, J. Phys. Soc. Jpn. 33, 21 (1972).
G. J. Snyder, R. Hisker, S. DiCarolis, M. R. Beastly, and T. H. Genalle, Phys. Rev. B 53, 14434 (1996).
H. S. Wang, Q. Li, K. Liu, and C. L. Chien, Appl. Phys. Lett. 74, 2212 (1999).
G. Xiao, G. Q. Gong, C. L. Canedy, E. J. McNiff, Jr., and A. Gupta, J. Appl. Phys. 81, 5324 (1997).
Yu. A. Boikov and T. Claeson, Fiz. Tverd. Tela (St. Petersburg) 47, 274 (2005) [Phys. Solid State 47, 287 (2005)].
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Original Russian Text © Yu.A. Boikov, M.P. Volkov, V.A. Danilov, 2009, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2009, Vol. 35, No. 11, pp. 104–110.
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Boikov, Y.A., Volkov, M.P. & Danilov, V.A. Low-temperature magnetoresistance of biaxially strained 24-nm-thick La0.67Ca0.33MnO3 films. Tech. Phys. Lett. 35, 532–535 (2009). https://doi.org/10.1134/S1063785009060157
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DOI: https://doi.org/10.1134/S1063785009060157