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Journal of Applied Physics
Paper

Magnetoresistance and Hall effect of chromium dioxide epitaxial thin films

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Abstract

The CrO2 thin films epitaxially on TiO2(100) and Al2O3(0001) substrates were successively grown. The films have been structurally characterized using ex situ RHEED, X-ray diffraction and ion channeling spectroscopy. A Curie temperature of around 393 K is observed for the films, with those grown on TiO2 exhibiting a large magneto-crystalline anisotropy. Transport measurements show that films on TiO2 have a resistivity drop of about two orders upon cooling down from room temperature to 5 K.

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Journal of Applied Physics

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