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Journal of Radio Electronics Online scientific journal · eISSN 1684-1719
2015, № 3 · ELECTRODYNAMICS

Ultrasonic absorption in magnetic nanofluids with magnetic field relaxation

I.E. Ovchinnikov1,2

1 Московкий государственный университет информационных технологий, радиотехники и электроники
2 Moscow State University of Information Technologies, Radioengineering and Electronics, Russia
Full text EDN TQMGCT

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.

  • magnetic field relaxation
  • magnetic nanofluid
  • Ultrasonic absorption
Аннотация (на русском)

Поглощение ультразвука в магнитных наножидкостях при релакации магнитного поля

Проведен анализ экспериментальных данных по поглощению ультразвука в магнитных наножидкостях. Показано, что экспериментальные данные для пиков коэффициента поглощения ультразвука в магнитных наножидкостях могут быть объяснены при использовании процесса релаксации магнитного поля к своему равновесному значению в модели магнитной жидкости с вмороженной намагниченностью.

For citation

Ovchinnikov I.E. Ultrasonic absorption in magnetic nanofluids with magnetic field relaxation // Journal of Radio Electronics. – 2015. – No. 3.

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