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We develop a generic all-inductive procedure to measure the band structure of spin waves in a magnetic thin stripe. In contrast to existing techniques, our method works even if several spin wave branches coexist in the investigated…

Materials Science · Physics 2021-06-30 T. Devolder , G. Talmelli , S. M. Ngom , F. Ciubotaru , C. Adelmann , C. Chappert

We use spin torque ferromagnetic resonance to measure the spectral properties of dipole-exchange spin waves in permalloy nanowires. Our measurements reveal that geometric confinement has a profound effect on the damping of spin waves in the…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 Carl Boone , Jordan Katine , Jeff Childress , Vasil Tiberkevich , Andrei Slavin , Jian Zhu , Xiao Cheng , Ilya Krivorotov

The broadband microstrip ferromagnetic resonance technique has been applied for detection and characterization of a magnetic inhomogeneity in a film sample. In the case of a 100nm thick Permalloy film an additional magnetically depleted top…

Propagating slow magneto-acoustic waves are often observed in polar plumes and active region fan loops. The observed periodicities of these waves range from a few minutes to few tens of minutes and their amplitudes were found to decay…

Solar and Stellar Astrophysics · Physics 2014-06-25 S. Krishna Prasad , D. Banerjee , T. Van Doorsselaere

We derive a lumped circuit model for inductive antenna spin-wave transducers in the vicinity of a ferromagnetic medium. The model considers the antenna's Ohmic resistance, its inductance, as well as the additional inductance due to the…

Mesoscale and Nanoscale Physics · Physics 2021-12-01 Frederic Vanderveken , Vasyl Tyberkevych , Giacomo Talmelli , Bart Sorée , Florin Ciubotaru , Christoph Adelmann

We study how the shape of the spinwave resonance lines in rf-voltage induced FMR can be used to extract the spinwave density of states and the damping within the precessing layer in nanoscale tunnel junctions that possess perpendicular…

Materials Science · Physics 2017-09-20 T. Devolder

By combining analytical and numerical approaches, we theoretically investigate the effect of fabrication imperfections, e.g. roughness at metal interfaces, on nanometer metal-insulator-metal waveguides supporting slow gap-plasmon modes.…

Time and spatial damping of transverse magnetohydrodynamic (MHD) kink oscillations is a source of information on the cross-field variation of the plasma density in coronal waveguides. We show that a probabilistic approach to the problem of…

Solar and Stellar Astrophysics · Physics 2014-05-14 I. Arregui , A. Asensio Ramos

We have studied the propagation characteristics of spin wave modes in a permalloy stripe by time-resolved magneto-optical Kerr effect techniques. We observe a beating interference pattern in the time domain under the influence of an…

Materials Science · Physics 2015-06-23 Siddharth Rao , Jungbum Yoon , Jan Rhensius , Charanjit S. Bhatia , Hyunsoo Yang

The reflection and transmission amplitudes of waves in disordered multimode waveguides are studied by means of numerical simulations based on the invariant embedding equations. In particular, we analyze the influence of surface-type…

Disordered Systems and Neural Networks · Physics 2009-10-31 J. A. Sanchez-Gil , V. Freilikher , A. A. Maradudin , I. Yurkevich

The current study focuses on experimentally and theoretically improving the characterization of the drop size and drop velocity for like-on-like doublet impinging jets. The experimental measurements were made using phase Doppler anemometry…

Fluid Dynamics · Physics 2024-05-15 Neil S. Rodrigues , Varun Kulkarni , Jian Gao , Jun Chen , Paul E. Sojka

The geometric, kinetic, and total inductances and the attenuation constant are theoretically analyzed for a thin-film superconducting coplanar waveguide (CPW) resonator consisting of a current-carrying central conductor, adjacent slots, and…

Superconductivity · Physics 2015-06-11 John R. Clem

In this letter, a permutation enhanced parallel reconstruction architecture for compressive sampling is proposed. In this architecture, a measurement matrix is constructed from a block-diagonal sensing matrix and the sparsifying basis of…

Information Theory · Computer Science 2014-09-01 Hao Fang , Sergiy A. Vorobyov , Hai Jiang

The non-uniform standing spin-wave modes in thin magnetic films and nanostructures provide important information about surfaces and buried interfaces. Very often they are lacking in the recorded ferromagnetic resonance spectra for symmetry…

Materials Science · Physics 2011-03-15 C. S. Chang , A. O. Adeyeye , M. Kostylev , S. Samarin

We study theoretically how high-gain effects affect the measurement outcome of visible signal spectra in undetected photon measurement schemes. We consider two interferometric configurations: firstly, the SU(1,1) interferometer where the…

Quantum Physics · Physics 2026-02-02 Martin Houde , Franz Roeder , Christine Silberhorn , Benjamin Brecht , Nicolás Quesada

We study an analogue of the large deviation principle for mixed measures associated with a class of $\log$-concave probability measures whose densities depend on the gauge function of a convex body. For convex bodies in $\mathbb{R}^n$, we…

Probability · Mathematics 2026-02-25 Malak Lafi , Artem Zvavitch

The effect of damping in the wave turbulence regime for thin vibrating plates is studied. An experimental method, allowing measurements of dissipation in the system at all scales, is first introduced. Practical experimental devices for…

In the matter of selection of sample time points for the estimation of the power spectral density of a continuous time stationary stochastic process, irregular sampling schemes such as Poisson sampling are often preferred over regular…

Statistics Theory · Mathematics 2010-07-19 Radhendushka Srivastava , Debasis Sengupta

We have investigated the spin wave dynamics of Permalloy (Py) thin films with and without a Ta capping layer for varying Py thickness (15 nm, 20 nm and 30 nm) using all optical time-resolved magneto-optical Kerr effect measurements. XPS…

Mesoscale and Nanoscale Physics · Physics 2019-02-22 Nikita Porwal , Simone Peli , P. J. Chen , Robert Shull , Prasanta Kumar Datta

Data are presented on inductance of various features used in superconductor digital integrated circuits such as microstrip and stripline inductors with linewidths down to 120 nm and different combinations of ground plane layers, effect of…

Superconductivity · Physics 2021-08-11 Sergey. K. Tolpygo , Evan B. Golden , Terence J. Weir , Vladimir Bolkhovsky