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Title: Nonlinear transport in ionic liquid gated strontium titanate nanowires

Abstract

Measurements of the current-voltage (I–V) characteristics of ionic liquid gated nanometer scale channels of strontium titanate have been carried out. At low gate voltages, the I–V characteristics exhibit a large voltage threshold for conduction and a nonlinear power law behavior at all temperatures measured. The source-drain current of these nanowires scales as a power law of the difference between the source-drain voltage and the threshold voltage. The scaling behavior of the I–V characteristic is reminiscent of collective electronic transport through an array of quantum dots. At large gate voltages, the narrow channel acts as a quasi-1D wire whose conductance follows Landauer's formula for multichannel transport.

Authors:
Publication Date:
OSTI Identifier:
22482095
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 107; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRIC POTENTIAL; LIQUIDS; NANOWIRES; NONLINEAR PROBLEMS; QUANTUM DOTS; STRONTIUM TITANATES

Citation Formats

Bretz-Sullivan, Terence M., and Goldman, A. M., E-mail: goldman@physics.umn.edu. Nonlinear transport in ionic liquid gated strontium titanate nanowires. United States: N. p., 2015. Web. doi:10.1063/1.4931355.
Bretz-Sullivan, Terence M., & Goldman, A. M., E-mail: goldman@physics.umn.edu. Nonlinear transport in ionic liquid gated strontium titanate nanowires. United States. https://doi.org/10.1063/1.4931355
Bretz-Sullivan, Terence M., and Goldman, A. M., E-mail: goldman@physics.umn.edu. 2015. "Nonlinear transport in ionic liquid gated strontium titanate nanowires". United States. https://doi.org/10.1063/1.4931355.
@article{osti_22482095,
title = {Nonlinear transport in ionic liquid gated strontium titanate nanowires},
author = {Bretz-Sullivan, Terence M. and Goldman, A. M., E-mail: goldman@physics.umn.edu},
abstractNote = {Measurements of the current-voltage (I–V) characteristics of ionic liquid gated nanometer scale channels of strontium titanate have been carried out. At low gate voltages, the I–V characteristics exhibit a large voltage threshold for conduction and a nonlinear power law behavior at all temperatures measured. The source-drain current of these nanowires scales as a power law of the difference between the source-drain voltage and the threshold voltage. The scaling behavior of the I–V characteristic is reminiscent of collective electronic transport through an array of quantum dots. At large gate voltages, the narrow channel acts as a quasi-1D wire whose conductance follows Landauer's formula for multichannel transport.},
doi = {10.1063/1.4931355},
url = {https://www.osti.gov/biblio/22482095}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 11,
volume = 107,
place = {United States},
year = {Mon Sep 14 00:00:00 EDT 2015},
month = {Mon Sep 14 00:00:00 EDT 2015}
}