Yu. P. Sukhorukov, A. V. Telegin, E. A. Gan'shina, E. A. Stepantsov, A. N. Vinogradov, F. Lombardi, D. Winkler, “Effect of an interface boundary on the magnetooptical and magnetotransport properties of La$_{0.67}$Ca$_{0.33}$MnO$_3$/La$_{0.67}$Sr$_{0.33}$MnO$_3$ heterostructures”, Zhurnal Tekhnicheskoi Fiziki, 2010, Volume 80, Issue 8,Pages 86

This article is cited in 3 papers

Solid-State Electronics

Effect of an interface boundary on the magnetooptical and magnetotransport properties of La$_{0.67}$Ca$_{0.33}$MnO$_3$/La$_{0.67}$Sr$_{0.33}$MnO$_3$ heterostructures

Yu. P. Sukhorukov^a, A. V. Telegin^a, E. A. Gan'shina^b, E. A. Stepantsov^c, A. N. Vinogradov^b, F. Lombardi^d, D. Winkler^d

^a Institute of Metal Physics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
^b Lomonosov Moscow State University
^c Institute of Cristallography Russian Academy of Sciences, Moscow
^d Chalmers University of Technology, SE-41296 Goteborg, Sweden

Abstract: The optical, magnetooptical (Kerr effect and magnetotransmission), and magnetotransport properties of La$_{2/3}$Ca$_{1/3}$MnO$_3$/La$_{2/3}$Sr$_{1/3}$MnO$_3$ and La$_{2/3}$Ca$_{1/3}$MnO$_3$/SrTiO$_3$/La$_{2/3}$Sr$_{1/3}$MnO$_3$ heterostructures on SrTiO$_3$ substrates are studied. The contribution of the interface boundary to the magnetotransmission is typical of a material with a transitional composition. It is found that a 2-nm-thick SrTiO$_3$ spacer does not influence the shape and position of the magnetotransmission peak in a field normal to the surface of the heterostructure but increases the contribution of the upper layer to the magnetotransmission in the Voigt geometry and also enhances the magnetoresistance that is due to the tunneling of spin-polarized carriers through the spacer. The Kerr spectra taken of the heterostructures are typical of single-layer single-crystal films.

Received: 14.04.2009