Enhancing Sensitivity of Double-Walled Carbon Nanotubes with Longitudinal Magnetic Field

Author:

Ahmadi Hamid Reza1,Rahimi Zaher2,Sumelka Wojciech3ORCID

Affiliation:

1. Mechanical Engineering Department, Urmia University, Urmia 5714783734, Iran

2. School of Engineering and Technology, University of New South Wales, Canberra, ACT 2600, Australia

3. Institute of Structural Analysis, Poznan University of Technology, 60-965 Poznan, Poland

Abstract

In this study, the behavior of double-walled carbon nanotubes (DWCNTs) used as mass sensors is explored under various boundary conditions; particular attention is paid to the crucial topic of resonant nanomechanical mass sensors. In the presented approach, nanotubes are subjected to a distributed transverse magnetic force and supported by an elastic foundation. The impacts of the longitudinal magnetic field, elastic medium, and diverse physical parameters on the responsiveness of the sensors are assessed. Using the energy method, governing equations are formulated to determine the frequency shifts of the mass nanosensors. Our findings reveal significant variations in the frequency shifts due to a longitudinal magnetic field, which depends on the applied boundary conditions. This research holds significance in the design of resonant nanomechanical mass sensors and provides valuable insights into the interplay of factors affecting their performance. Through exploring the intricate dynamics of DWCNTs used as mass sensors and thus contributing to the broader understanding of nanoscale systems, the implications for advancements in sensor design are offered and applications are introduced.

Publisher

MDPI AG

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