Title: Competing weak localization and weak antilocalization in amorphous indium-gallium-zinc-oxide thin-film transistors
Authors: Wang, Wei-Hsiang
Lyu, Syue-Ru
Heredia, Elica
Liu, Shu-Hao
Jiang, Pei-Hsun
Liao, Po-Yung
Chang, Ting-Chang
Chen, Hua-Mao
Department of Photonics
Issue Date: 9-Jan-2017
Abstract: We have investigated the gate-voltage dependence and the temperature dependence of the magneto-conductivity of amorphous indium-gallium-zinc-oxide thin-film transistors. A weak-localization feature is observed at small magnetic fields on top of an overall negative magnetoconductivity at higher fields. An intriguing controllable competition between weak localization and weak antilocalization is observed by tuning the gate voltage or by varying the temperature. Our findings reflect controllable quantum interference competition in the electron systems in amorphous indium-gallium-zinc-oxide thin-film transistors. Published by AIP Publishing.
URI: http://dx.doi.org/10.1063/1.4974080
ISSN: 0003-6951
DOI: 10.1063/1.4974080
Volume: 110
Issue: 2
Appears in Collections:Articles