A microscopic theory for the calculation of magnetic field induction of nanowires
Year: 2024
Type: article
Abstract: The narrower a conductor the more significant is its induced magnetic field , or the Ørsted magnetic field . The calculation of the Ørsted magnetic field in current-carrying wires is a standard textbook exercise that generally assumes that the wire has a circular cross-section, and where a simplified form of the Biot–Savart equation is applied. While such formalism can be suitable for macroscopic wire structures, it will not be ideal for nano-sized wire structures because of the presence of structural features that might impact detailed structure of the Ørsted magnetic field. This work introduces a microscopic approach for the prediction of the Ørsted magnetic field in nanowires . The approach combines the current magnetization hypothesis (Tawfik, 2022) with molecular dynamics that applies the electron force field. The formalism can be utilized for predicting the Ørsted magnetic field of more complex nano-conductors.
Source: Computational Materials Science
Author: Sherif Abdulkader Tawfik
Institution: Deakin University
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,190
OpenAlex ID: W4405599425