Distribution of switching fields in thin films with uniaxial magnetic anisotropy

Yakovlev, N.L.; Tay, YS; Tay, Z.J.; Chen, H.V.

doi:10.1016/j.jmmm.2012.09.062

Cited by 2 publications

(3 citation statements)

References 26 publications

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“…1 Physical model and coordinate system researchers in magnetohydrodynamics, as elaborated by Yakovlev et al (2013) who have also adopted exponential magnetic field relations. Sadooghi and Taghinavaz (2012) have also explained the validity of employing exponentially decaying functions of magnetic field.…”

Section: Mathematical Modelmentioning

confidence: 99%

Explicit numerical study of unsteady hydromagnetic mixed convective nanofluid flow from an exponentially stretching sheet in porous media

Bég¹,

Khan

Karim

et al. 2013

Appl Nanosci

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A numerical investigation of unsteady magnetohydrodynamic mixed convective boundary layer flow of a nanofluid over an exponentially stretching sheet in porous media, is presented. The transformed, non-similar conservations equations are solved using a robust, explicit, finite difference method (EFDM). A detailed stability and convergence analysis is also conducted. The regime is shown to be controlled by a number of emerging thermophysical parameters i.e. combined porous and hydromagnetic parameter (R), thermal Grashof number (G r ), species Grashof number (G m ), viscosity ratio parameter (K), dimensionless porous media inertial parameter (r), Eckert number (E c ), Lewis number (L e ), Brownian motion parameter (N b ) and thermophoresis parameter (N t ). The flow is found to be accelerated with increasing thermal and species Grashof numbers and also increasing Brownian motion and thermophoresis effects. However, flow is decelerated with increasing viscosity ratio and combined porous and hydromagnetic parameters. Temperatures are enhanced with increasing Brownian motion and thermophoresis as are concentration values. With progression in time the flow is accelerated and temperatures and concentrations are increased. EFDM solutions are validated with an optimized variational iteration method. The present study finds applications in magnetic nanomaterials processing.

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Section: Mathematical Modelmentioning

confidence: 99%

Explicit numerical study of unsteady hydromagnetic mixed convective nanofluid flow from an exponentially stretching sheet in porous media

Bég¹,

Khan

Karim

et al. 2013

Appl Nanosci

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show abstract

“…Thus, our modulator does not contain any magnetic components and is not affected by the magnetic field. Using this modulator, we studied the magnetic properties of cobalt films of thickness down to a nanometre . This success leads naturally to the question: is it only MOKE that can be measured using this modulator?…”

Section: Introductionmentioning

confidence: 99%

“…Using this modulator, we studied the magnetic properties of cobalt films of thickness down to a nanometre. [4][5][6] This success leads naturally to the question: is it only MOKE that can be measured using this modulator?…”

Section: Introductionmentioning

confidence: 99%

Kinetics of small molecule adsorption studied using precision ellipsometry

Yakovlev

Quek²,

Dąbrowski

et al. 2019

Surface & Interface Analysis

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On the basis of a miniature polarisation modulator, a precision ellipsometry system has been made, enabling real‐time measurement of subnanometre thin layers on reflecting substrates. This system monitored the kinetics of adsorption and desorption of propanol, or ethanol, or methanol on oxidised Si substrates. While adsorption of propanol and ethanol increased the thickness, adsorption of methanol showed surprising kinetics: the thickness first increased, then decreased. To explain this, a model of substitutional (or competitive) adsorption has been used, where the target molecule is adsorbed only when it substitutes another one leaving an adsorption site. The model fits the experimental data quantitatively and can predict processes involving several components on solid surfaces. Precision ellipsometry demonstrated its high analytical potential in investigation of surfaces at molecular level.

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Distribution of switching fields in thin films with uniaxial magnetic anisotropy

Cited by 2 publications

References 26 publications

Explicit numerical study of unsteady hydromagnetic mixed convective nanofluid flow from an exponentially stretching sheet in porous media

Explicit numerical study of unsteady hydromagnetic mixed convective nanofluid flow from an exponentially stretching sheet in porous media

Kinetics of small molecule adsorption studied using precision ellipsometry

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