Quantum-interference origin and magnitude of 1/ f noise in Dirac nodal line IrO2nanowires at low temperatures

Po Yu Chien; Chih Yuan Wu; Ruey Tay Wang; Shao Pin Chiu; Stefan Kirchner; Sheng-Shiuan Yeh; Juhn-Jong Lin

doi:10.1063/5.0147131

Quantum-interference origin and magnitude of 1/ f noise in Dirac nodal line IrO₂nanowires at low temperatures

Po Yu Chien, Chih Yuan Wu, Ruey Tay Wang, Shao Pin Chiu, Stefan Kirchner, Sheng-Shiuan Yeh^*, Juhn-Jong Lin^*

^*此作品的通信作者

研究成果: Article › 同行評審

3 引文斯高帕斯（Scopus）

摘要

We present 1/f noise measurements of IrO2 nanowires from 1.7 to 350 K. Results reveal that the noise magnitude (represented by Hooge parameter γ) increases at low temperatures, indicating low-frequency resistance noise from universal conductance fluctuations. The cause of this noise is determined to be due to oxygen vacancies in the rutile structure of IrO2. Additionally, the number density of these mobile defects can be calculated from the T resistance rise caused by the two-channel Kondo effect in the Dirac nodal line metal IrO2.

原文	English
文章編號	143102
期刊	Applied Physics Letters
卷	122
發行號	14
DOIs	https://doi.org/10.1063/5.0147131
出版狀態	Published - 3 4月 2023

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abstract = "We present 1/f noise measurements of IrO2 nanowires from 1.7 to 350 K. Results reveal that the noise magnitude (represented by Hooge parameter γ) increases at low temperatures, indicating low-frequency resistance noise from universal conductance fluctuations. The cause of this noise is determined to be due to oxygen vacancies in the rutile structure of IrO2. Additionally, the number density of these mobile defects can be calculated from the T resistance rise caused by the two-channel Kondo effect in the Dirac nodal line metal IrO2.",

author = "Chien, {Po Yu} and Wu, {Chih Yuan} and Wang, {Ruey Tay} and Chiu, {Shao Pin} and Stefan Kirchner and Sheng-Shiuan Yeh and Juhn-Jong Lin",

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AU - Chien, Po Yu

AU - Wu, Chih Yuan

AU - Wang, Ruey Tay

AU - Chiu, Shao Pin

AU - Kirchner, Stefan

AU - Yeh, Sheng-Shiuan

AU - Lin, Juhn-Jong

PY - 2023/4/3

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N2 - We present 1/f noise measurements of IrO2 nanowires from 1.7 to 350 K. Results reveal that the noise magnitude (represented by Hooge parameter γ) increases at low temperatures, indicating low-frequency resistance noise from universal conductance fluctuations. The cause of this noise is determined to be due to oxygen vacancies in the rutile structure of IrO2. Additionally, the number density of these mobile defects can be calculated from the T resistance rise caused by the two-channel Kondo effect in the Dirac nodal line metal IrO2.

AB - We present 1/f noise measurements of IrO2 nanowires from 1.7 to 350 K. Results reveal that the noise magnitude (represented by Hooge parameter γ) increases at low temperatures, indicating low-frequency resistance noise from universal conductance fluctuations. The cause of this noise is determined to be due to oxygen vacancies in the rutile structure of IrO2. Additionally, the number density of these mobile defects can be calculated from the T resistance rise caused by the two-channel Kondo effect in the Dirac nodal line metal IrO2.

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JO - Applied Physics Letters

JF - Applied Physics Letters

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ER -

Quantum-interference origin and magnitude of 1/ f noise in Dirac nodal line IrO2nanowires at low temperatures

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Quantum-interference origin and magnitude of 1/ f noise in Dirac nodal line IrO₂nanowires at low temperatures