Anomalous Hall effect behavior in (100) and (110) CrO2 thin films
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چکیده
Articles you may be interested in Giant planar Hall effect in reactive sputtered epitaxial Cr x Fe3– x O4 films Planar Hall effect and magnetic anisotropy in epitaxially strained chromium dioxide thin films Appl. Magnetoresistance and Hall effect of chromium dioxide epitaxial thin films First and second order magnetic anisotropy constants have been determined in (110) and (100) CrO 2 films using magnetometry and anomalous Hall effect measurements. Higher in-plane anisotropy is observed in strain-free (110) CrO 2 films as compared to strained (100) CrO 2 films, while out-of-plane magnetic anisotropy (OPMA) is stronger in (100) films. Temperature-dependent OPMA is particularly striking for (110) films with a sharp drop below 200 K, whereas for (100) films the anisotropy increases as the temperature decreases. These results are consistent with changes in the magnetization orientation with decreasing temperature, possibly caused by differences in the thermal expansion coefficient between the substrate and film.
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