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Н. Ногинова

Norfolk State University

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M. A. Noginov

Norfolk State University

ВА

В. А. Ацаркин

Institute of Radio-Engineering and Electronics

Maxim Durach

Georgia Southern University

H. John Caulfield

Fisk University

David Keene

Norfolk State University

G. B. Loutts

Norfolk State University

Putcha Venkateswarlu

Andhra University

Rabia Hussain

Universiti Sains Malaysia

S. Mashhadi

Norfolk State University

Mohammad Shahabuddin

Norfolk State University

Cooperative Institutions

Norfolk State University

124

Alabama Agricultural and Mechanical University

Texas A&M University

Russian Academy of Sciences

Cornell University

Oak Ridge National Laboratory

Purdue University West Lafayette

Marshall Space Flight Center

University of Alabama in Huntsville

Institute of Radio-Engineering and Electronics

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Ferromagnetic Resonance in Permalloy Metasurfaces

Applied Magnetic Resonance (2021)

Н. Ногинова V. A. Gubanov Mohammad Shahabuddin Yu. A. Gubanova Sean Nesbit

Permalloy

Magnonics

Spin wave

Solid-state physics

10.1007/s00723-021-01347-w

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Citations (7)

Ferromagnetic Resonance in Permalloy Metasurfaces

arXiv (Cornell University) (2021)

Н. Ногинова V. A. Gubanov Mohammad Shahabuddin Yu. A. Gubanova Sean Nesbit

Permalloy films with one-dimensional (1D) profile modulation of submicron periodicity are fabricated based on commercially available DVD-R discs and studied using ferromagnetic resonance (FMR) method and micromagnetic numerical simulations. The main resonance position shows in-plane angular dependence which is strongly reminiscent of that in ferromagnetic films with uniaxial magnetic anisotropy. The main signal and additional low field lines are attributed to multiple standing spin wave resonances defined by the grating period. The results may present interest in magnetic metamaterials and magnonics applications.

Permalloy

Magnonics

Spin wave

10.48550/arxiv.2103.08704

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Ferromagnetic resonance studies on colossal magnetoresistance films: Effects of homogeneity and light illumination

Journal of Applied Physics (2006)

R. Bah D. Bitok R. R. Rakhimov Maxim M. Noginov A. K. Pradhan

Ferromagnetic resonance (FMR) in the dependence on magnetic field orientation, and effect of the laser light on the magnetic ordering were studied in colossal magnetoresistance films, La1−xSrxMnO3 and La1−xBaxMnO3. The FMR linewidth increased with the decrease in temperature in La1−xSrxMnO3 films, and was nearly temperature independent in La1−xBaxMnO3, that was attributed to the different degree of magnetic homogeneity of the films. Layered structures La1−xBaxMnO3 on silicon with intermediate layer of SrTiO3 were characterized by FMR as highly homogeneous. From the orientation and temperature dependences of the FMR spectra, the effective magnetization, and effective anisotropy fields were estimated. The laser light illumination resulted in the change of FMR line shape and intensity, and was interpreted in terms of optically induced magnetic disordering and effective heating of the spin system.

Colossal Magnetoresistance

10.1063/1.2171082

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Citations (7)

NMR and spin relaxation in systems with magnetic nanoparticles

Journal of Physics Condensed Matter (2007)

Н. Ногинова T. Weaver M M King Athanasios B. Bourlinos Emmanuel P. Giannelis

The ¹H NMR spectra and spin dynamics of the host systems have been studied in liquid and solid suspensions of γ-Fe₂O₃ nanoparticles. Significant broadening of ¹H NMR spectra and growing relaxation rates were observed with increased concentration of nanoparticles in the liquid systems, with the relation T₁/T₂ depending on the particular host. Solid systems demonstrate inhomogeneous broadening of the spectra and practically no dependence of T₁ upon the nanoparticle concentration. We explain the experimental results taking into account the predomination of self-diffusion as a source of the relaxation in liquid suspensions, and estimate effective parameters of relaxation in the systems under study.

Spin diffusion

10.1088/0953-8984/19/7/076210

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Citations (15)

A Fluid Metamaterial With Tunable Anisotropy

M. Mayy Guohua Zhu J. K. Kitur Н. Ногинова Carl E. Bonner

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text M. Mayy, G. Zhu, J. K. Kitur, N. Noginova, C. E. Bonner, R. R. Bhattacharjee, E. P. Giannelis, and M. A. Noginov, "A Fluid Metamaterial With Tunable Anisotropy," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optica Publishing Group, 2011), paper QThK7. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article

10.1364/qels.2011.qthk7

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Citations (1)

Modification of electric and magnetic dipole emission in anisotropic plasmonic systems

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE (2012)

Н. Ногинова Rabia Hussain M. A. Noginov Jarrett H. Vella Augustine Urbas

Spontaneous emission of a dipole can be significantly modified in metamaterials, providing opportunities to engineer emission rates, yields, spectra, and angular patterns. To better understand specifics of such modifications for electric and magnetic emitters, we study luminescence of Eu³⁺ ions placed in a close vicinity of arrays of gold nanostrips. The luminescence is strongly polarized, with the preferable polarization parallel to the direction of strips. Polarization patterns and angular distributions of radiation depend on wavelength, and are different for electric and magnetic dipole transitions. The results are discussed in terms of different coupling of emitters with radiative and high-loss modes.

10.1117/12.931826

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Light-to-current and current-to-light coupling in plasmonic systems

Physical Review B (2011)

Н. Ногинова A. V. Yakim J. Soimo Lei Gu M. A. Noginov

In thin silver films we have observed strong photon drag effect (PDE) enhanced by surface plasmon polaritons (SPPs) excited in a Kretschmann geometry at the SPP resonant angle. A weaker PDE of an opposite polarity has been detected at off-resonance incidence angles. We have also found that SPPs can be controlled by an external dc current propagating in the film. Both observed phenomena are mediated by electron-plasmon coupling and can find applications in plasmonic nanocircuitry, combining advantages of compact electronics and fast photonics.

10.1103/physrevb.84.035447

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Citations (61)

Effects of Magnetic Nanoparticles on Magnetic Resonance and Spin Relaxation in Systems of Different Viscosity

MRS Proceedings (2009)

Н. Ногинова Aleksandr Andreyev Julia Noginova Joseph C. Hall Vani Ramesh

Spin–spin relaxation

Magnetization transfer

Proton magnetic resonance

10.1557/proc-1237-tt05-18

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Photoinduced electric current in Fe-doped KNbO_3

Journal of the Optical Society of America B (1997)

Н. Ногинова N. Kukhtarev T. Kukhtareva M. A. Noginov H. John Caulfield

Photorefractive KNbO3:Fe is characterized by monitoring of the electric currents induced in the crystal that are due to applied illumination. Important photorefractive parameter values, such as the Maxwell relaxation time, carrier-diffusion length, carrier-screening length, and the magnitude of the photogalvanic current are thereby estimated.

Electric current

Photoconductivity

Crystal (programming language)

10.1364/josab.14.001390

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Citations (13)

Erratum to: Electron Magnetic Resonance in Magnetic Nanoparticles: Dependence on the Particle Size and Applicability of the Modified Giant Spin Model

Applied Magnetic Resonance (2016)

Н. Ногинова Brittany Bates В. А. Ацаркин

Solid-state physics

Particle (ecology)

10.1007/s00723-016-0812-6

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Citations (2)