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Updated: Jul 16, 2026

Advanced Experimental Methods for Low-temperature Magnetotransport Measurement of Novel Materials
Published on: January 21, 2016
Low-Temperature Magnetotransport of Mixed Polycrystalline Rutile, Anatase and Brookite Phases of TiO2
Josipa Šćurla1,2, Trpimir Ivšić3,4, Gaurav Pransu5
1Faculty of Science, University of Split, Ruđera Boškovića 33, 21000 Split, Croatia.
Abstract:
The anatase and rutile phases of titanium dioxide (TiO2) have been widely studied for their photocatalytic and electronic properties, while the brookite phase is rarely explored. The investigations of intrinsic magnetotransport in mixed-phase systems are limited. Magnetic susceptibility and magnetotransport measurements were performed between 2 K and 300 K in magnetic fields up to 12 T. Both samples with different anatase-rutile-brookite ratios exhibit Curie-Weiss susceptibility. Transport measurements reveal an insulating behavior at low temperatures with activation energies 1-20 meV and signatures of variable-range hopping (VRH) conduction. Strong positive magnetoresistance at low temperatures obeys the Efros-Shklovskii VRH model.
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