Title: Electric resistance and magnetoresistance of 30-nm-Thick La0.67Ca0.33MnO3 films elastically compressed in the (110) plane.
Authors: Boikov, Yu. A.; Volkov, M. P.
Abstract: We have studied the structure, electric resistance, and magnetoresistance of 30-nm-thick (110)La0.67Ca0.33MnO3 (LCMO) films grown by laser deposition on (001)-oriented LaAlO3 substrates. The unit cell parameters a and b (along the [100] and [010]LCMO axes, respectively) of these manganite films are significantly (by ∼1.2%) increased as compared to the corresponding values in the pseudocubic unit cell of bulk stoichiometric LCMO crystals. At T < 150 K, the temperature dependence of the resistivity of LCMO films is well described by the relation ρ = ρ1 + ρ2 ( H) T 4.5. The value of ρ 2 decreases with increasing magnetic field and is close to the analogous coefficient for manganite films grown on substrates with small lattice misfit.
Subjects: THICK films; ELECTRIC resistance; MAGNETORESISTANCE; PULSED laser deposition; MANGANITE; MAGNETIC fields
Publication: Technical Physics Letters, 2008, Vol 34, Issue 11, p974
ISSN: 1063-7850
Publication type: Academic Journal
DOI: 10.1134/S1063785008110229

Electric resistance and magnetoresistance of 30-nm-Thick La<sub>0.67</sub>Ca<sub>0.33</sub>MnO<sub>3</sub> films elastically compressed in the (110) plane.

Boikov, Yu. A.; Volkov, M. P.