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The recent growing interest in terahertz (THz) and sub-THz science and technology is due to its many important applications in physics, astronomy, chemistry, biology, and medicine. We review the problem of linear and non-linear THz and…

Superconductivity · Physics 2015-05-13 S. E. Savel'ev , V. A. Yampol'skii , A. L. Rakhmanov , Franco Nori

We study the propagation of an unusual type of periodic travelling waves in chains of identical beads interacting via Hertz's contact forces. Each bead periodically undergoes a compression phase followed by a free flight, due to special…

Pattern Formation and Solitons · Physics 2015-06-04 Guillaume James

We have investigated charge transport in ultrasmall superconducting single and double Josephson junctions coupled to resonant modes of the electromagnetic environment. We observe pronounced current peaks in the transport characteristics of…

Superconductivity · Physics 2011-02-03 Yu. A. Pashkin , H. Im , J. Leppäkangas , T. F. Li , O. Astafiev , A. A. Abdumalikov , E. Thuneberg , J. S. Tsai

In this study, we explore the Josephson current-phase relation within a planar diffuse tunneling superconducting multilayer junction subjected to a parallel magnetic field. Our investigation involves computing the supercurrent associated…

Superconductivity · Physics 2024-06-19 A. S. Osin , Alex Levchenko , Maxim Khodas

Nonreciprocal microwave transmission through a long Josephson junction in the flux-flow regime is studied analytically and numerically within the framework of the perturbed sine-Gordon model. We demonstrate that the maximum attenuation of…

Superconductivity · Physics 2015-09-09 A. L. Pankratov , K. G. Fedorov , M. Salerno , S. V. Shitov , A. V. Ustinov

The Josephson coupling of two isotropic s-wave superconductors through a small, magnetically active junction is studied. This is done as a function of junction transparency and of the degree of spin-mixing occurring in the barrier. In the…

Superconductivity · Physics 2009-10-31 Mikael Fogelstrom

Spin-torque-biased magnetic dynamics in an easy-plane ferromagnet (EPF) is theoretically studied in the presence of a weak in-plane anisotropy. While this anisotropy spoils U(1) symmetry thereby quenching the conventional spin…

Mesoscale and Nanoscale Physics · Physics 2018-07-18 Daniel Hill , Se Kwon Kim , Yaroslav Tserkovnyak

We present a full theoretical and experimental study of the dynamics and energy distribution of non-equilibrium quasiparticles in superconducting tunnel junctions (STJs). STJs are often used for single-photon spectrometers, where the…

Superconductivity · Physics 2009-11-10 K. Segall , C. Wilson , L. Li , L. Frunzio , S. Friedrich , M. C. Gaidis , D. E. Prober

The theory of low-frequency (in comparison with the ion cyclotron frequency), long wavelength, electrostatic drift ion-acoustic waves (IAWs) is studied in a nonuniform rotating magnetoplasma with two temperature superthermal electrons. In…

Plasma Physics · Physics 2022-03-14 A. Abdikian , M. Eghbali , A. P. Misra

We investigate the physics of planar annular Josephson tunnel junctions quenched through their transition temperature in the presence of an external magnetic field. Experiments carried out with long Nb/Al-AlOx/Nb annular junctions showed…

Superconductivity · Physics 2020-05-15 Roberto Monaco , Jesper Mygind , Valery P. Koshelets

An interaction of electromagnetic field with metamaterial thin film containing split-ring resonators with Josephson junctions is considered. It is shown that dynamical self-inductance in a split rings results in reduction of magnetic flux…

Other Condensed Matter · Physics 2015-05-13 Andrei I. Maimistov , Ildar I. Gabitov

We present an experimental and analytical study of resonances in the current-voltage characteristics of single and double row triangular Josephson arrays. The magnetic field dependences of the voltage positions of the resonances have been…

Superconductivity · Physics 2009-10-31 P. Caputo , M. V. Fistul , A. V. Ustinov

This paper presents a new method for generating low-frequency electromagnetic waves for navigation and communication in challenging environments, such as underwater and underground. The main idea is to store magnetic energy in two different…

Applied Physics · Physics 2020-05-21 Ali Hosseini-Fahraji , Majid Manteghi , Khai d. t. Ngo

We report a theoretical study of the macroscopic quantum dynamics in spatially extended Josephson systems. We focus on a Josephson tunnel junction of finite length placed in an externally applied magnetic field. In such a system,…

Superconductivity · Physics 2009-11-11 M. V. Fistul , A. V. Ustinov

We have carried out a detailed experimental investigation of the static properties of planar Josephson tunnel junctions in presence of a uniform external magnetic field applied in an arbitrary orientation with respect to the barrier plane.…

Superconductivity · Physics 2011-01-11 R. Monaco , M. Aroe , J. Mygind , V. P. Koshelets

The effect of temporal modulation on traveling waves in the flows in two distinct systems of rotating cylinders, both with broken azimuthal symmetry, has been investigated. It is shown that by modulating the control parameter at twice the…

We present a theoretical study of coherent quantum dynamics of a single magnetic fluxon (MF) trapped in Josephson junction parallel arrays (JJPAs) with large kinetic inductances. The MF is the topological excitation carrying one quantum of…

Superconductivity · Physics 2021-06-16 S. S. Seidov , M. V. Fistul

In this paper we extend our earlier analysis of the novel Josephson effect in triplet superconductor--ferromagnet--triplet superconductor (TFT) junctions [B. Kastening \emph{et al.}, Phys. Rev. Lett. {\bf{96}}, 047009 (2006)]. In our more…

Superconductivity · Physics 2009-01-26 P. M. R. Brydon , Boris Kastening , Dirk K. Morr , Dirk Manske

A superconducting magnetometers based on the magnetic field dependence of the Eck step voltage in long Josephson tunnel junctions (LJTJs) is demonstrated. The field to be measured is applied perpendicular to a continuous superconducting…

Mesoscale and Nanoscale Physics · Physics 2013-06-18 Roberto Monaco , Carmine Granata , Roberto Russo , antonio Vettoliere

Rapid random telegraph noise (RTN) in magnetic tunnel junctions (MTJs) is an important figure of merit for probabilistic computing applications. However, the interactions between the macrospin and spin waves with finite wave numbers reduce…

Mesoscale and Nanoscale Physics · Physics 2025-05-02 Mehrdad Elyasi , Shun Kanai , Hideo Ohno , Shunsuke Fukami , Gerrit E. W. Bauer