Theory of magnetostatic waves for in-plane magnetized isotropic films

Hurben, M. J.; Patton, Carl E.

doi:10.1016/0304-8853(95)90006-3

Cited by 93 publications

(69 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Spin waves exhibit a peculiarity that differentiates them from light or sound waves: their dispersion relation is highly anisotropic 13,14 . This means that their energy significantly depends on the relative angle between their propagation direction and the magnetization orientation.…”

mentioning

confidence: 99%

Realization of a spin-wave multiplexer

et al. 2014

View full text Add to dashboard Cite

Recent developments in the field of spin dynamics-like the interaction of charge and heat currents with magnons, the quasi-particles of spin waves-opens the perspective for novel information processing concepts and potential applications purely based on magnons without the need of charge transport. The challenges related to the realization of advanced concepts are the spin-wave transport in two-dimensional structures and the transfer of existing demonstrators to the micro-or even nanoscale. Here we present the experimental realization of a microstructured spin-wave multiplexer as a fundamental building block of a magnon-based logic. Our concept relies on the generation of local Oersted fields to control the magnetization configuration as well as the spin-wave dispersion relation to steer the spin-wave propagation in a Y-shaped structure. Thus, the present work illustrates unique features of magnonic transport as well as their possible utilization for potential technical applications.

show abstract

mentioning

confidence: 99%

Realization of a spin-wave multiplexer

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The experimentally found spin-wave numbers k SW are combined in Fig. 4(c) with theoretical calculations based on the Damon-Eshbach formula for the lowest order BVMSW mode [16]. The solid line has been calculated based on the measured field value, a film thickness of 5 µm and a saturation magnetisation 4πµ 0 M s = 0.175 T. In comparison, the dashed line is the result of a fit, where the film thickness and the magnetic field were taken as fit parameters.…”

Section: Resultsmentioning

confidence: 99%

“…To a microstrip transducer on the surface of the YIG stripe a 200 ns long microwave pulse with 7.132 GHz carrier frequency was supplied with a 1 µs repetition rate. The configuration was chosen in such a way that the microwave pulse excites a packet of backward volume magnetostatic spin waves (BVMSW) which propagates in the film in the direction of the bias magnetic field [15,16]. Thus, the in-plane wave vector of the excited spin waves has a well defined, unique non-zero component.…”

Section: Setupmentioning

confidence: 99%

An electro-optic modulator-assisted wavevector-resolving Brillouin light scattering setup

Neumann

Schneider

Serga

et al. 2009

Review of Scientific Instruments

View full text Add to dashboard Cite

Brillouin light scattering spectroscopy is a powerful technique which incorporates several extensions such as space-, time-, phase-and wave-vector resolution. Here, we report on the improvement of the wave-vector resolution by including an electro-optical modulator. This provides a reference to calibrate the position of the diaphragm hole which is used for wave-vector selection. The accuracy of this calibration is only limited by the accuracy of the wave-vector measurement itself. To demonstrate the validity of the approach the wave vectors of dipole-dominated spin waves excited by a microstrip antenna were measured.

show abstract

“…25 Indeed, a θ = π rotation of the magnetic field results in a decrease of the SWs' excitation efficiency 26,27 and in a drastic change in the SWs amplitude profile, which is confined to the opposite surface of the ferromagnetic layer. 28 In the case of θ = π/2, pure backward volume magnetostatic spin waves (BVMSW) are excited. 22,28 These modes have lower resonant frequencies (Supplementary Note 3) than the DESW and are characterized by a sinusoidal magnetization oscillation profile across the thickness of the ferromagnetic layer.…”

Section: Mw 4 Mwmentioning

confidence: 99%

“…28 In the case of θ = π/2, pure backward volume magnetostatic spin waves (BVMSW) are excited. 22,28 These modes have lower resonant frequencies (Supplementary Note 3) than the DESW and are characterized by a sinusoidal magnetization oscillation profile across the thickness of the ferromagnetic layer. In Fig.…”

Section: Mw 4 Mwmentioning

confidence: 99%

Long-range spin wave mediated control of defect qubits in nanodiamonds

et al. 2017

View full text Add to dashboard Cite

Hybrid architectures that combine nitrogen-vacancy centers in diamond with other materials and physical systems have been proposed to enhance the nitrogen-vacancy center's capabilities in many quantum sensing and information applications. In particular, spin waves in ferromagnetic materials are a promising candidate to implement these platforms due to their strong magnetic fields, which could be used to efficiently interact with the nitrogen-vacancy centers. Here, we develop an yttrium iron garnet-nanodiamond hybrid architecture constructed with the help of directed assembly and transfer printing techniques. Operating at ambient conditions, we demonstrate that surface confined spin waves excited in the ferromagnet can strongly amplify the interactions between a microwave source and the nitrogen-vacancy centers by enhancing the local microwave magnetic field by several orders of magnitude. Crucially, we show the existence of a regime in which coherent interactions between spin waves and nitrogen-vacancy centers dominate over incoherent mechanisms associated with the broadband magnetic field noise generated by the ferromagnet. These accomplishments enable the spin wave mediated coherent control of spin qubits over distances larger than 200 μm, and allow low power operations for future spintronic technologies.

show abstract

Theory of magnetostatic waves for in-plane magnetized isotropic films

Cited by 93 publications

References 28 publications

Realization of a spin-wave multiplexer

Realization of a spin-wave multiplexer

An electro-optic modulator-assisted wavevector-resolving Brillouin light scattering setup

Long-range spin wave mediated control of defect qubits in nanodiamonds

Contact Info

Product

Resources

About