English
Related papers

Related papers: Interference of coherent spin waves in micron-size…

200 papers

We perform micromagnetic simulations to investigate the propagation of spin-wave beams through spin-wave optical elements. Despite spin-wave propagation in magnetic media being strongly anisotropic, we use axicons to excite spinwave…

Applied Physics · Physics 2020-07-01 Marc Vogel , Burkard Hillebrands , Georg von Freymann

The application of Brillouin light scattering to the study of the spin-wave spectrum of one- and two-dimensional planar magnonic crystals consisting of arrays of interacting stripes, dots and antidots is reviewed. It is shown that the…

Materials Science · Physics 2015-05-18 G. Gubbiotti , S. Tacchi , M. Madami , G. Carlotti , A. O. Adeyeye , M. Kostylev

We introduce a theory to describe disorder-induced scattering in photonic crystal waveguides, specifically addressing the influence of local field effects and scattering within high-index-contrast perturbations. Local field effects are…

Mesoscale and Nanoscale Physics · Physics 2012-01-13 M Patterson , S. Hughes

Spin waves are studied intensively for their intriguing properties and potential use in future technology platforms for the transfer and processing of information and microwave signals. The development of devices and materials for spin-wave…

Mesoscale and Nanoscale Physics · Physics 2022-12-21 Lukáš Flajšman , Ondřej Wojewoda , Huajun Qin , Kristýna Davídková , Michal Urbánek , Sebastiaan van Dijken

Ballistic spin transport through waveguides, with symmetric or asymmetric double stubs attached to them periodically, is studied systematically in the presence of a weak spin-orbit coupling that makes the electrons precess. By an…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 X. F. Wang , P. Vasilopoulos , F. M. Peeters

Ferromagnetic/Antiferromagnetic (FM/AFM) bilayers dynamics have been a recent topic of interest due to the interaction occurring at the interface, where the magnetic moments of the AFM can be imprinted into the FM, and the exchange bias…

Recent neutron scattering measurements reveal spin and charge ordering in the half-doped nickelate, La$_{3/2}$ Sr$_{1/2}$ NiO$_4$. Many of the features of the magnetic excitations have been explained in terms of the spin waves of diagonal…

Strongly Correlated Electrons · Physics 2007-05-23 D. X. Yao , E. W. Carlson

The self-consistent spin-wave theory is applied to investigate the magnetization distribution around the impurity in isotropic and easy-axis two-dimensional ferro- and antiferromagents. The temperature dependences of host magnetization…

Condensed Matter · Physics 2011-07-22 V. Yu. Irkhin , A. A. Katanin , M. I. Katsnelson

We report the experimental observation of the spin-wave moir\'e edge and cavity modes using Brillouin light scattering spectro-microscopy in a nanostructured magnetic moir\'e lattice consisting of two twisted triangle antidot lattices based…

We suggest the numerical approach to detect eigenfrequencies of trapped modes in waveguides or guided waves in diffraction gratings. At the same time, the approach works perfectly for computation of systems with finitely many scattering…

Quantum Physics · Physics 2007-05-23 Valery E. Grikurov

We study the diffraction of Damon-Eshbach-type spin waves incident on a one-dimensional grating realized by micro slits in a thin permalloy film. By means of time-resolved scanning Kerr microscopy we observe unique diffraction patterns…

Other Condensed Matter · Physics 2015-05-30 S. Mansfeld , J. Topp , K. Martens , J. N. Toedt , W. Hansen , D. Heitmann , S. Mendach

We use a neutron spin-echo method with $\mu$eV resolution to determine the lifetimes of spin waves in the prototypical antiferromagnet MnF$_2$ over the entire Brillouin zone. A theory based on the interaction of magnons with longitudinal…

Strongly Correlated Electrons · Physics 2009-11-11 S. P. Bayrakci , T. Keller , K. Habicht , B. Keimer

Long-wavelength spin waves in disordered magnetic systems have been investigated. In the framework of the Heisenberg model with magnetic dipole and exchange interactions between spins it is found that an additional longitudinal spin wave…

Disordered Systems and Neural Networks · Physics 2008-01-31 L. V. Lutsev

We report results of micro-Brillouin-Mandelstam light scattering spectroscopy of thermal magnons in the two-phase synthetic multiferroic structure consisting of a piezoelectric (PMN-PT) substrate and a Ni thin film with the thickness of 64…

We study experimentally the possibility to utilize pulses of pure spin current, produced via the nonlocal spin injection mechanism, to generate short packets of spin waves propagating in nanoscale magnetic waveguides. The spatially and…

Mesoscale and Nanoscale Physics · Physics 2017-03-03 B. Divinskiy , V. E. Demidov , S. O. Demokritov , A. B. Rinkevich , S. Urazhdin

Magnetostatic spin wave dispersion and loss are measured in micron scale spin wave-guides in ferromagnetic, metallic CoTaZr. Results are in good agreement with model calculations of spin wave dispersion. The measured attenuation lengths, of…

Materials Science · Physics 2009-11-13 A. Kozhanov , D. Ouellette , M. Rodwell , A. P. Jacob , D. W. Lee , S. X. Wang , S. J. Allen

We have investigated the generation of spin waves in the free layer of an extended spin-valve structure with a nano-scaled point contact driven by both microwave and direct electric current using Brillouin light scattering microscopy.…

Patterned magnetic nanostructures are potential candidates for future energy efficient, on-chip communication devices. Here, we have experimentally and numerically studied the role of nanochannels to manipulate spin waves in Ni80Fe20…

Mesoscale and Nanoscale Physics · Physics 2020-12-30 Sourav Sahoo , Surya Narayan Panda , Saswati Barman , Yoshichika Otani , Anjan Barman

The interaction between phonons and magnons is a widely developing topic, especially in the field of acoustic spintronics. To discuss this interaction, it is necessary to observe two different waves (acoustic and spin waves) with the same…

Materials Science · Physics 2024-04-23 M. Zdunek , S. Shekhar , S. Mielcarek , A. Trzaskowska

Ferromagnetic resonance in conducting magnetic bilayers was studied using microstrip transducers. It was found that excitation or suppression of standing spin waves could be achieved through enhanced inhomogeneity of eddy currents in the…

Materials Science · Physics 2009-09-01 M. Kostylev , K. J. Kennewell , R. Magaraggia , R. L. Stamps , M. Ali , B. J. Hickey
‹ Prev 1 8 9 10 Next ›