Can I read Effect of synthesis conditions on the electrical resistivity of TiSe$_2$ on EtoBox?

Effect of synthesis conditions on the electrical resistivity of TiSe$_2$ by Moya, Jaime M.; Huang, C. -L.; Choe, Jesse; Costin, Gelu; Foster, Matthew S.; Morosan, E. is a scholarly article available to read on EtoBox.

What is Effect of synthesis conditions on the electrical resistivity of TiSe$_2$ about?

Dilute impurities and growth conditions can drastically affect the transport properties of TiSe$_2$, especially below the charge density wave transition. In this paper, we discuss the effects of cooling rate, annealing time and annealing temperature on the transport properties of TiSe$_2$: slow cooling of polycrystalline TiSe$_2$ post-synthesis drastically increases the low temperature resistivity, which is in contrast to the metallic behavior of single-crystalline TiSe$_2$ due to charge doping from the residual iodine transport agent. A logarithmic increase of resistivity upon cooling and negative magnetoresistance with a sharp cusp around zero field are observed for the first time for the polycrystalline TiSe$_2$ samples, pointing to weak-localization effects due to low dimensionality. Annealing at low temperatures has a similar, but less drastic effect. Furthermore, rapid quenching of the polycrystalline samples from high temperatures freezes in disorder, leading to a decrease in the low temperature resistivity.

Author

Moya, Jaime M.; Huang, C. -L.; Choe, Jesse; Costin, Gelu; Foster, Matthew S.; Morosan, E.

Published

2019

Language

EN