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A fermionic disordered one dimensional wire in the presence of attractive interactions is known to have two distinct phases: A localized and a superconducting one depending on the strength of interaction and disorder. The localized region…

Mesoscale and Nanoscale Physics · Physics 2015-11-18 Richard Berkovits

A theoretical and experimental investigation is presented on the intermodal coupling between the flexural vibration modes of a single clamped-clamped beam. Nonlinear coupling allows an arbitrary flexural mode to be used as a self-detector…

Mesoscale and Nanoscale Physics · Physics 2010-09-14 H. J. R. Westra , M. Poot , H. S. J. van der Zant , W. J. Venstra

We investigate the magnon-photon couplings by employing a small magnet within an irregular resonant cavity, which leads to a desirable nonreciprocity with a big isolation ratio. Moreover, the higher-order couplings between the spin wave…

Applied Physics · Physics 2021-06-02 Chi Zhang , Chenglong Jia , Yongzhang Shi , Changjun Jiang , Desheng Xue , C. K. Ong , Guozhi Chai

Strong coupling in cavity-magnon systems has shown great potential for use in spintronics and information processing technologies due to the low damping rates and long coherence times. Although such systems are conceptually similar to those…

Mesoscale and Nanoscale Physics · Physics 2017-03-22 Paul Hyde , Lihui Bai , Michael Harder , Christopher Dyck , Can-Ming Hu

We have analytically studied plasmons in an electron system comprised of two spatially separated layers -- an infinite two-dimensional electron system (2DES) and a 2D strip. Our analysis reveals the existence of plasmon modes that are…

Mesoscale and Nanoscale Physics · Physics 2020-10-14 A. A. Zabolotnykh , V. A. Volkov

The interaction between electromagnetic waves and objects is strongly affected by the shape and material composition of the latter. Artificially created materials, formed by a subwavelength structuring of their unit cells, namely…

Classical Physics · Physics 2018-02-07 Dmitry Filonov , Andrey Shmidt , Amir Boag , Pavel Ginzburg

The structure of bound magnetic polarons in an antiferromagnetic matrix is studied in the framework of two-dimensional (2D) and three-dimensional (3D) Kondo-lattice models in the double exchange limit (J_H >> t). The conduction electron is…

Strongly Correlated Electrons · Physics 2007-05-23 S. L. Ogarkov , M. Yu. Kagan , A. O. Sboychakov , A. L. Rakhmanov , K. I. Kugel

The proximity of antiferromagnetic order in high-temperature superconducting materials is considered a possible clue to the electronic excitations which form superconducting pairs. Here we study the transverse and longitudinal spin…

Superconductivity · Physics 2012-10-16 W. Rowe , J. Knolle , I. Eremin , P. J. Hirschfeld

We present a theoretical study of spin Hall phenomenon in a nanoribbon of a two-dimensional electronic system with Rashba and Dresselhaus spin-orbit coupling. We model the electronic system by a square lattice in real space. We show that…

Mesoscale and Nanoscale Physics · Physics 2026-03-18 Mohamad Usman , Tarun Kanti Ghosh , SK Firoz Islam

The electromagnetic propagator associated with the localized collective magnetoplasmon excitations in a semiconductor superlattice with broken translational symmetry, is calculated analytically within linear response theory. We discuss the…

Condensed Matter · Physics 2009-10-31 J. H. Reina , J. C. Granada , N. F. Johnson

One of the most fundamental forms of magnon-phonon interaction is an intrinsic property of magnetic materials, the "magnetoelastic coupling". This particular form of interaction has been the basis for describing magnetic materials and their…

Random impedance networks are widely used as a model to describe plasmon resonances in disordered metal-dielectric nanocomposites. In order to study thin films, two-dimensional networks are often used despite the fact that such networks…

Mesoscale and Nanoscale Physics · Physics 2018-11-06 Nikita Olekhno , Yaroslav Beltukov

Pairing rotations are the low-energy excitations of finite superfluid systems, connecting systems that differ in their number of Cooper pairs. This paper presents a model-independent derivation of pairing rotations within an effective…

Nuclear Theory · Physics 2022-04-26 T. Papenbrock

Semiconductor quantum dots (QDs) doped with magnetic impurities have been a focus of continuous research for a couple of decades. A significant effort has been devoted to studies of magnetic polarons (MP) in these nanostructures. These…

Materials Science · Physics 2023-07-19 D. Rederth , R. Oszwaldowski , A. G. Petukhov , J. Pientka

Conjugated polymers exhibit unique spin-dependent phenomena arising from weak yet critical hyperfine interactions. Understanding these spin effects, particularly the spin-dependent formation and decay of correlated spin pairs, is important…

With the excitation and demagnetization of a magnet for magnetic resonance imaging in mind, we theoretically and numerically investigated electromagnetic coupling--especially its dependence on the round core radius $R$--of multifilament…

Superconductivity · Physics 2021-12-16 Yoichi Higashi , Yasunori Mawatari

In many antiferromagnetic, quasi-two-dimensional materials, doping with holes leads to "stripe" phases, in which the holes congregate along antiphase domain walls in the otherwise antiferromagnetic texture. Using a suitably parametrized…

Superconductivity · Physics 2007-05-23 E. W. Carlson , D. X. Yao , D. K. Campbell

The rigorous analysis of textbook result(Chiu and Quinn, 1974) gives unexpectedly the dramatic change of magnetoplasmon spectrum taking into account both the arbitrary dissipation and asymmetric off-plane structure of 2D system. For given…

Mesoscale and Nanoscale Physics · Physics 2017-09-21 M. V. Cheremisin

We study the magnetic properties of metallic GaMnAs. We calculate the effective RKKY interaction between Mn spins using several realistic models for the valence band structure of GaAs. We also study the effect of positional disorder of the…

Materials Science · Physics 2007-05-23 Gregory A. Fiete , Gergely Zarand , Boldizsar Janko , Pawel Redlinski , C. Pascu Moca

Different periodical Frequency Selective Surfaces(FSS) whose unit cell are the Split Ring Resonators (SRR) or related geometries and their corresponding complementary screens were studied. This kind of FSS, sometimes called metasurfaces,…

Classical Physics · Physics 2013-10-14 L. M. Pulido-Mancera , J. D. Baena , J. L. Araque
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