Effect of induced current loss on quality factor of graphene resonators

Xiao，Yang1; Hu，Feng1; Zhu，Mengjian1; Zheng，Jiaxing1; Song，Xuefeng2,3; Liu，Ying4; Qin，Shiqiao1

2022-03-01

10.1063/5.0082259

AIP Advances   影响因子和分区

2158-3226

As the important electric loss of a graphene resonator, intrinsic current loss has received increasing attention, but the existing research is limited to qualitative analysis and approximate calculation. Based on the microscopic behavior of carriers, we have accurately established the calculation model of induced current loss, which is in good agreement with the existing experimental results. Compared with the previous models, the model in this work can not only fit the inverse V-shaped Q - Vdc curve well but also be compatible with the V-shaped Q - Vdc curve, which is beyond the reach of the previous models. In addition, the calculation results show that selecting the appropriate gate voltage combination when stimulating the graphene resonator can increase the quality factor by nearly 1-2 orders of magnitude. Furthermore, we reasonably explain the importance of DC gate voltage applied in the experiment compared with the case of non-DC gate voltage. This work realizes the accurate calculation of intrinsic current loss and is of great significance for reducing the intrinsic current loss in the practical application of graphene resonators.

SCI ; EI

英语

通讯

National Key R&D Program of China["2018YFA0306900","2017YFA0403200"] ; Natural Science Foundation of Hunan Province["2020JJ3039","2020JJ4659"] ; National Natural Science Foundation of China[51705528,51675528,"JCYJ20170817111857745","JCYJ20180504165721952"]

Science & Technology - Other Topics ; Materials Science ; Physics

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000779176100006

AIP Publishing

20221411908834

Electric fields ; Electric losses ; Graphene ; Threshold voltage

Electricity: Basic Concepts and Phenomena:701.1 ; Nanotechnology:761 ; Chemical Products Generally:804

2-s2.0-85127406233

Scopus

1.College of Advanced Interdisciplinary Studies,National University of Defense Technology,Changsha,410073,China
2.Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.International Quantum Academy,Shenzhen,518048,China
4.College of Intelligence Science and Technology,National University of Defense Technology,Changsha,410073,China

Xiao，Yang,Hu，Feng,Zhu，Mengjian,et al. Effect of induced current loss on quality factor of graphene resonators[J]. AIP Advances,2022,12(3).

Xiao，Yang.,Hu，Feng.,Zhu，Mengjian.,Zheng，Jiaxing.,Song，Xuefeng.,...&Qin，Shiqiao.(2022).Effect of induced current loss on quality factor of graphene resonators.AIP Advances,12(3).

Xiao，Yang,et al."Effect of induced current loss on quality factor of graphene resonators".AIP Advances 12.3(2022).