Ultrasonic absorption in magnetic nanofluids with magnetic field relaxation

 

I. E. Ovchinnikov

 Moscow State University of Information Technologies, Radioengineering and Electronics

The paper is received on March 4, 2015

 

Abstract: Analysis has been provided for the experimental data on ultrasonic absorption in magnetic nanofluids. It was shown for magnetic nanofluids that experimental data for peaks of ultrasonic absorption coefficient can be explained using the process of magnetic field relaxation to its equilibrium value in the model of magnetic fluid with frozen-in magnetization.

Key words: magnetic field relaxation, magnetic nanofluid, ultrasonic absorption.