Perturbation of magnetization of a magnetic fluid by ultralow thermal fluctuations accompanying a sound wave

Polunin, V. M.; Storozhenko, A; Ryapolov, P. A.; Tantsyura, A. O.; Kazakov, Yu. B.; Aref’eva, T. A.; Aref'ev, I. M.; Neruchev, Yu. A.; Korotkovskii, Vadim I.

doi:10.1134/s1063771014040137

Cited by 2 publications

(3 citation statements)

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“…The conversion of elastic vibrations of a magnetized magnetic fluid into a magnetic field disturbance recorded by measuring coils is termed the acoustic magnetic effect (AME) in magnetic fluid. This effect was first theoretically analyzed in [ 182 ]. In [ 182 ], researchers proposed an expression to estimate the magnetization disturbance of the magnetic fluid in the AME:

where

is the increment of the magnetization of the magnetic fluid as a result of the adiabatic deformation of the magnetic fluid under the influence of a sound wave,

is the demagnetizing factor,

is the magnetization of the magnetic fluid in the undisturbed state, the parameters

characterize the system in the initial state

is the temperature coefficient, u is the displacement of the magnetic fluid from the equilibrium position under the influence of sound vibrations, and

is the relaxation time of magnetization.…”

Section: Physical Properties and Structure Of Magnetic Fluidsmentioning

confidence: 99%

“…The conversion of elastic vibrations of a magnetized magnetic fluid into a magnetic field disturbance recorded by measuring coils is termed the acoustic magnetic effect (AME) in magnetic fluid. This effect was first theoretically analyzed in [182]. In [182], researchers proposed an expression to estimate the magnetization disturbance of the magnetic fluid in the AME:…”

Section: Sound In Magnetic Fluidmentioning

confidence: 99%

“…This effect was first theoretically analyzed in [182]. In [182], researchers proposed an expression to estimate the magnetization disturbance of the magnetic fluid in the AME:…”

Section: Sound In Magnetic Fluidmentioning

confidence: 99%

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Magnetic Fluids: The Interaction between the Microstructure, Macroscopic Properties, and Dynamics under Different Combinations of External Influences

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et al. 2024

Nanomaterials

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Magnetic fluids were historically the first active nano-dispersion material. Despite over half a century of research, interest in these nano-objects continues to grow every year. This is due to the impressive development of nanotechnology, the synthesis of nanoscale structures, and surface-active systems. The unique combination of fluidity and magnetic response allows magnetic fluids to be used in engineering devices and biomedical applications. In this review, experimental results and fundamental theoretical approaches are systematized to predict the micro- and macroscopic behavior of magnetic fluid systems under different external influences. The article serves as working material for both experienced scientists in the field of magnetic fluids and novice specialists who are just beginning to investigate this topic.

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where

is the increment of the magnetization of the magnetic fluid as a result of the adiabatic deformation of the magnetic fluid under the influence of a sound wave,

is the demagnetizing factor,

is the magnetization of the magnetic fluid in the undisturbed state, the parameters

characterize the system in the initial state

is the temperature coefficient, u is the displacement of the magnetic fluid from the equilibrium position under the influence of sound vibrations, and

is the relaxation time of magnetization.…”

Section: Physical Properties and Structure Of Magnetic Fluidsmentioning

confidence: 99%

“…The conversion of elastic vibrations of a magnetized magnetic fluid into a magnetic field disturbance recorded by measuring coils is termed the acoustic magnetic effect (AME) in magnetic fluid. This effect was first theoretically analyzed in [182]. In [182], researchers proposed an expression to estimate the magnetization disturbance of the magnetic fluid in the AME:…”

Section: Sound In Magnetic Fluidmentioning

confidence: 99%