Angular dependent ferromagnetic resonance analysis in a single micron sized cobalt stripe

Schoeppner, C.; Wagner, Klaudia; Stienen, Sven; Meckenstock, R.; Farle, Michael; Narkowicz, R.; Suter, Dieter; Lindner, J.

doi:10.1063/1.4890515

Cited by 32 publications

(33 citation statements)

References 21 publications

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“…Since the dynamic magnetization is expected to be width dependent only, the numbers of cells along the wire length and thickness are not critical. In these simulations, we applied a spatially uniform continuous wave magnetic drive field to the wire [55][56][57] . The simulation results were analyzed after the system had reached the dynamic equilibrium.…”

Section: Theorymentioning

confidence: 99%

Spin wave eigenmodes in transversely magnetized thin film ferromagnetic wires

et al. 2015

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We report experimental and theoretical studies of spin wave eigenmodes in transversely magnetized thin film Permalloy wires. Using broadband ferromagnetic resonance technique, we measure the spectrum of spin wave eigenmodes in individual wires as a function of magnetic field and wire width. Comparison of the experimental data to our analytical model and micromagnetic simulations shows that the intrinsic dipolar edge pinning of spin waves is negligible in transversely magnetized wires. Our data also quantify the degree of extrinsic edge pinning in Permalloy wires. This work establishes the boundary conditions for dynamic magnetization in transversely magnetized thin film wires for the range of wire widths and thicknesses studied, and provides a quantitative description of the spin wave eigenmode frequencies and spatial profiles in this system as a function of the wire width.

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Section: Theorymentioning

confidence: 99%

Spin wave eigenmodes in transversely magnetized thin film ferromagnetic wires

et al. 2015

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“…In our interpretation we assume that the magnetic configuration of the Co electrode in the contact region changes reversibly with the applied field and remains unaffected by microwave irradiation. In particular ferromagnetic resonance (FMR) effects are avoided by restricting the frequency range to <10 GHz below typical FMR frequency of Co [57][58][59]. Individually fitting equation (1) to the dip and peak in the microwave induced conductance change yields slightly different values for the resonance fields.…”

Section: Resultsmentioning

confidence: 99%

Microwave-induced direct spin-flip transitions in mesoscopic Pd/Co heterojunctions

et al. 2016

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We experimentally investigate the effect of resonant microwave absorption on the magneto-conductance of tunable Co/Pd point contacts. At the interface a non-equilibrium spin accumulation is created via microwave absorption and can be probed via point contact spectroscopy. We interpret the results as a signature of direct spin-flip excitations in Zeeman-split spin-subbands within the Pd normal metal part of the junction. The inverse effect, which is associated with the emission of a microwave photon in a ferromagnet/normal metal point contact, can also be detected via its unique signature in transport spectroscopy.

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“…Since the resonators can be relatively small, smaller samples can be measured. Banholzer et al [248] and Schoeppner et al [249] have recently reported on the measurement of micron-sized ferromagnetic elements using this method. In Fig.…”

Section: Ferromagnetic Resonancementioning

confidence: 98%