(Color online) Schematic arrangement of the sample, applied current and magnetic field for AMR-1 (a) and AMR-2 (b) measurements. The crystallographic  axis is directed along the x-axis.
(Color online) Temperature dependence of the resistivity of La0.79Ca0.21MnO3 crystal at zero magnetic field and under H = 14 kOe aligned parallel and perpendicular to the current direction. Inset: The temperature dependence of magnetoresistance MR = (R(14 kOe) – R(0))/R(14 kOe) in H =14 kOe for both orientation of magnetic field.
(Color online) (a) Angular variation of the magnetoresistance at H =14 kOe for AMR-1 measurements with I parallel to  at various temperatures. (b) The fitting of Eq. (1) to experimental data recorded at T = 200 K. (c) Angular variation of the magnetoresistance at T = 178 K H for measurements with various magnetic field.
(Color online) Field dependence of δan at T =178 K in AMR-1 experiments.
(Color online) Angular variation of the magnetoresistance at H = 14 kOe for measurements with H perpendicular to I and I parallel to  at various temperatures in AMR-2 measurements.
(Color online) Temperature dependence of the anisotropy parameter δan in AMR-1 and AMR-2 measurements.
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