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We study the light scattering of homogenous radially-anisotropic spherical particles. It is shown that radial anisotropy can be employed to tune effectively the electric resonances, and thus enable flexible overlapping of electric and…

Optics · Physics 2023-07-19 Wei Liu

Acoustic vibrations of nanoparticles made of materials with anisotropic elasticity and nanoparticles with non-spherical shapes are theoretically investigated using a homogeneous continuum model. Cubic, hexagonal and tetragonal symmetries of…

Mesoscale and Nanoscale Physics · Physics 2009-06-02 Lucien Saviot , Daniel B. Murray

Recently, clustering of inertial particles in turbulence has been thoroughly analyzed for statistically homogeneous isotropic flows. Phenomenologically, spatial homogeneity of particles configurations is broken by the advection of a range…

Chaotic Dynamics · Physics 2015-05-13 P. Gualtieri , F. Picano , C. M. Casciola

Magnetic vortices existing in soft magnetic nanoparticles with sizes larger than the single-domain diameter can be efficient nano-heaters in biomedical applications. Using micromagnetic numerical simulation we prove that in the optimal…

Mesoscale and Nanoscale Physics · Physics 2017-09-04 N. A. Usov , M. S. Nesmeyanov , V. P. Tarasov

We show that the density of states and the thermodynamic properties of a 2D d-wave superconductor in the vortex state with applied magnetic field $\bf H$ in the plane depend on the angle between $\bf H$ and the order parameter nodes. Within…

Superconductivity · Physics 2009-10-31 I. Vekhter , P. J. Hirschfeld , J. P. Carbotte , E. J. Nicol

The magnetic structure and spin-wave excitations in the quasi-square-lattice layered perovskite compound La$_5$Mo$_4$O$_{16}$ were studied by a combination of neutron diffraction and inelastic neutron scattering techniques using…

Strongly Correlated Electrons · Physics 2017-06-07 K. Iida , R. Kajimoto , Y. Mizuno , K. Kamazawa , Y. Inamura , A. Hoshikawa , Y. Yoshida , T. Matsukawa , T. Ishigaki , Y. Kawamura , S. Ibuka , T. Yokoo , S. Itoh , T. Katsufuji

We investigate the magnetization dynamics of ferromagnetic nanoparticles in the atomistic approach taking account of surface anisotropy and the spin misalignment it causes. We demonstrate that such inhomogeneous spin configurations induce…

Mesoscale and Nanoscale Physics · Physics 2018-11-12 Roland Bastardis , Francois Vernay , Hamid Kachkachi

The interlayer magnetoresistance of a quasi-two-dimensional layered metal with a d-wave pseudogap is calculated semiclassically. An expression for the interlayer resistivity as a function of the strength and direction of the magnetic field,…

Strongly Correlated Electrons · Physics 2009-06-08 M. F. Smith , Ross H. McKenzie

There has been a surge of interest in the subwavelength confinement of the electromagnetic fields. It is well known that in optics the subwavelength confinement can be obtained due to surface plasmon (quasielectrostatic) oscillations. In…

Materials Science · Physics 2009-09-01 E. O. Kamenetskii , M. Sigalov , R. Shavit

We study spatial coherence properties of a system composed of periodic silver nanoparticle arrays covered with a fluorescent organic molecule (DiD) film. The evolution of spatial coherence of this composite structure from the weak to the…

Altermagnets are an emergent class of materials combining features of ferro- and antiferro-magnetic materials. They have spin-separated bands normally associated with ferromagnets, but a vanishing net magnetization. Moreover the symmetries…

Recent theoretical studies have demonstrated the possibility to excite and sustain noncollinear magnetization states in ferromagnetic nanowires. The resulting state is referred to as a spin-density wave (SDW). SDWs can be interpreted as…

Mesoscale and Nanoscale Physics · Physics 2019-05-01 Patrick Sprenger , Mark A. Hoefer , Ezio Iacocca

The discovery of ferromagnetism in two-dimensional (2D) monolayers has stimulated growing research interest in both spintronics and material science. However, these 2D ferromagnetic layers are mainly prepared through an incompatible…

Materials Science · Physics 2023-02-02 Qianwen Zhao , ChaoChao Xia , Hanying Zhang , Baiqing Jiang , Tunan Xie , Kaihua Lou , Chong Bi

Magnetometry measurements of Fe/U and Ni/U bilayer systems reveal a non-monotonic dependence of the magnetic anisotropy for U thicknesses in the range 0 nm - 8 nm, with the Fe/U bilayers showing a more prominent effect as compared to Ni/U.…

Mesoscale and Nanoscale Physics · Physics 2021-03-24 E. R. Gilroy , M. -H. Wu , M. Gradhand , R. Springell , C. Bell

Multipole expansion methods have been primarily used for analyzing the electromagnetic scattering from non-magnetic isotropic dielectric scatterers, and studies about the scattering from magnetic objects seem to be lacking. In this work, we…

Thin ferromagnetic films with in-plane magnetic anisotropy are promising materials for obtaining high microwave permeability. The paper reports on the M\"ossbauer study of the field induced in-plane uniaxial anisotropy in electro-deposited…

Materials Science · Physics 2011-09-22 Zhiwei Li , Xu Yang , Haibo Wang , Xin Liu , Fashen Li

Using the transfer matrix method we examine the parametric behavior of the transmittance of TE and TM electromagnetic plane waves propagating in frequency range which are far from the absorption bands of a periodic multilayered system. We…

Optics · Physics 2017-08-08 V. H. Carrera-Escobedo , H. C. Rosu

The self-consistent two-fluid model of the pulsar magnetosphere is considered. We concentrate on the case of vanishingly small inertia of the particles. Our approach allows to obtain the realistic particle distributions sustaining the…

High Energy Astrophysical Phenomena · Physics 2015-06-23 S. A. Petrova

Perpendicular magnetic anisotropy was found to be highly sensitive to the nominal thickness and morphology of laterally heterogeneous CoPd films in the vicinity of the metal insulator transition. We used the effect to tune the anisotropy by…

Materials Science · Physics 2022-05-04 Gregory Kopnov , Alexander Gerber

We show that the drift-diffusion mechanism in a normal-metal layer in combination with the resonance electron-magnon interactions at ferromagnet-normal interface of F-N-F heterostucture creates spatial instability modes and, out of these…

Adaptation and Self-Organizing Systems · Physics 2009-11-11 Pavel Levin
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