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相关论文: Fano resonances of microwave structures with embed…

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High refractive index dielectric nanostructures provide original optical properties thanks to the occurrence of size- and shape-dependent optical resonance modes. These modes commonly present a spectral overlap of broad, low-order modes…

Ferromagnetic insulators (FM-Is) are the materials of interest for new generation quantum electronic applications. Here, we have investigated the physical observables depicting FM-I ground states in epitaxial Sm$ _{2} $NiMnO$ _{6} $ (SNMO)…

材料科学 · 物理学 2022-04-20 Supriyo Majumder , Malvika Tripathi , I Píš , S Nappini , P Rajput , S N Jha , R J Choudhary , D M Phase

We present a new approach to dielectric metasurface design that relies on a single resonator per unit cell and produces robust, high quality-factor Fano resonances. Our approach utilizes symmetry breaking of highly symmetric resonator…

We show experimentally how quantum interference can be produced using an integrated quantum system comprising an arch-shaped short quantum wire (or quantum point contact, QPC) of 1D electrons and a reflector forming an electronic cavity. On…

介观与纳米尺度物理 · 物理学 2017-08-21 Chengyu Yan , Sanjeev Kumar , Michael Pepper , Patrick See , Ian Farrer , David Ritchie , Jonathan Griffiths , Geraint Jones

Narrow optical resonances of atoms or molecules have immense significance in various precision measurements, such as testing fundamental physics and the generation of primary frequency standards. In these studies, accurate transition…

原子物理 · 物理学 2022-10-13 Y. -N. Lv , A. -W. Liu , Y. Tan , C. -L. Hu , T. -P. Hua , X. -B. Zou , Y. R. Sun , C. -L. Zou , G. -C. Guo , S. -M. Hu

We examine the magnetic properties of the quasi 2D ferrimagnetic single crystal Mn3Si2Te6 (MST) through critical phenomena and magnetic entropy analysis in the easy axis (H || ab) as a function of proton irradiance. Employing a modified…

Fano resonances appear in quantum mechanical as well as classical systems as a result of the interference between two paths: one involving a discrete resonance and the other a continuum. Compared to a conventional resonance, characterized…

This paper presents a comprehensive review and tutorial on multi-functional metasurfaces integrated with M-type ferrite materials for millimeter-wave (mmWave) absorption and beam control. As wireless communication systems transition toward…

We report a high-resolution experimental detection of the resonant behavior of magnetic vortices confined in small disk-shaped ferromagnetic dots. The samples are magnetically soft Fe-Ni disks of diameter 1.1 and 2.2 um, and thickness 20…

材料科学 · 物理学 2007-05-23 V. Novosad , F. Y. Fradin , P. E. Roy , K. Buchanan , K. Yu. Guslienko , S. D. Bader

We present a dynamically frequency tunable Fano resonance planar device composed of periodically asymmetric graphene nanodisk pair for the mid-infrared region. There are two kinds of modes in this structure, that is, the symmetric mode and…

光学 · 物理学 2015-02-02 Zhengren Zhang , Xiaopeng Su , Yuancheng Fan , Pengfei Yin , Liwei Zhang , Xi Shi

Iron, cobalt and nickel are archetypal ferromagnetic metals. In bulk, electronic conduction in these materials takes place mainly through the $s$ and $p$ electrons, whereas the magnetic moments are mostly in the narrow $d$-electron bands,…

强关联电子 · 物理学 2009-06-18 M. R. Calvo , J. Fernández-Rossier , J. J. Palacios , D. Jacob , D. Natelson , C. Untiedt

Asymmetric spectral line shapes are a hallmark of interference of a quasi-bound state with a continuum of states. Such line shapes are well known for multichannel systems, for example, in photoionization or Feshbach resonances in molecular…

量子物理 · 物理学 2022-05-18 Prerna Paliwal , Alexander Blech , Christiane P. Koch , Edvardas Narevicius

As the Fano effect is an interference phenomenon where tunneling paths compete for the electronic transport, it becomes a probe to catch fingerprints of Majorana fermions lying on condensed matter systems. In this work we benefit of this…

介观与纳米尺度物理 · 物理学 2014-11-11 F. A. Dessotti , L. S. Ricco , M. de Souza , F. M. Souza , A. C. Seridonio

Molecular Dynamics (MD) simulations of a strongly coupled binary ionic mixture have revealed the appearance of sharp minima in the species resolved dynamical density fluctuation spectra. This phenomenon is reminiscent of the well-known Fano…

等离子体物理 · 物理学 2015-04-14 Luciano Silvestri , Gabor J. Kalman , Zoltan Donko , Peter Hartmann , Hanno Kaehlert

Two-dimensional (2D) massless Dirac fermions (MDF), which represent a type of quasi-particles with linear energy-momentum dispersions only in 2D momentum space, provide a fertile ground for realizing novel quantum phenomena. However, 2D MDF…

This paper represents a detailed theoretical study of the role of the longrange magnetic dipole-dipole interaction evidenced by the ferromagnetic resonance (FMR) spectra for the ordered arrays of cubic nanoparticles. We show that the size…

材料科学 · 物理学 2018-07-04 A. Sukhov , P. P. Horley , J. Berakdar , A. Terwey , R. Meckenstock , M. Farle

We examine quantum interference effects due to absorption and emission from multiple atoms coupled to a waveguide and highlight the modifications they entail in regards to single-photon transport properties. A prominent upshot of these…

光学 · 物理学 2019-07-17 Debsuvra Mukhopadhyay , Girish S. Agarwal

Nowadays nanotechnology allows to scale-down various important devices (sensors, chips, fibres, etc), and, thus, opens up new horizon for their applications. Nevertheless, the efficiency most of them is still based on the fundamental…

材料科学 · 物理学 2010-08-13 Andrey E. Miroshnichenko , Sergej Flach , Yuri S. Kivshar

The Fano resonance of a single symmetry broken Ag nanodisk under a normal incidence was investigated by using finite-difference time-domain (FDTD) simulations. The asymmetry line shape of the Fano resonance was controlled by modifying the…

介观与纳米尺度物理 · 物理学 2011-05-10 Zheyu Fang , Junyi Cai , Zhongbo Yan , Nathaniel K. Grady , Xing Zhu

Two-dimensional van der Waals (vdW) ferromagnets drive the advancement in spintronic applications and enable the exploration of exotic magnetism in low-dimensional systems. The entanglement of dual $-$ localized and itinerant $-$ nature of…