Publication

High-pressure study of anatase TiO2

László Forró, Helmuth Berger, Arnaud Magrez, Richard Gaal, Jacim Jacimovic, George Cristian Vaju
2010
Journal Articles

Abstract

We report resistivity and thermo-electric power measurements of the anatase phase of TiO2 under pressure up to 2.3 GPa. Despite its transparent appearance, the single crystal of anatase exhibits a metallic-like resistivity above 60 K, at all pressures. The rather high value of the thermo-electric power at room temperature points to complex transport mechanism in this phase.

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https://infoscience.epfl.ch/entities/publication/26f82e7f-bfcc-41dc-ad6e-9045fae430ae

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László Forró, Helmuth Berger, Arnaud Magrez, Richard Gaal, Jacim Jacimovic, George Cristian Vaju
2010
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/26f82e7f-bfcc-41dc-ad6e-9045fae430ae

About this result

Related concepts (21)

Titanium dioxide

Titanium dioxide, also known as titanium(IV) oxide or titania taɪˈteɪniə, is the inorganic compound with the chemical formula TiO2. When used as a pigment, it is called titanium white, Pigment White 6 (PW6), or CI 77891. It is a white solid that is insoluble in water, although mineral forms can appear black. As a pigment, it has a wide range of applications, including paint, sunscreen, and food coloring. When used as a food coloring, it has E number E171. World production in 2014 exceeded 9 million tonnes.

Rutile

Rutile is an oxide mineral composed of titanium dioxide (TiO2), the most common natural form of TiO2. Rarer polymorphs of TiO2 are known, including anatase, akaogiite, and brookite. Rutile has one of the highest refractive indices at visible wavelengths of any known crystal and also exhibits a particularly large birefringence and high dispersion. Owing to these properties, it is useful for the manufacture of certain optical elements, especially polarization optics, for longer visible and infrared wavelengths up to about 4.

Crystal

A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations. The scientific study of crystals and crystal formation is known as crystallography.

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