Physics, mathematics, and technology

2020 Issue №3

Back to the list Download the article

Method for estimating the width of a do­main wall from a signal generated by a domain wall when passing through a measuring coil



The formula for the emf Faraday induction from a domain wall moving in a microwire is derived. The time derivative of the magnetic flux in the measuring coil is expressed through a five-fold integral over the wall volume and over the coil section surface. The resulting expression is compared with those obtained previously with a simplified description of the measurement objects.