Inverse spin Hall and spin rectification effects in NiFe/FeMn exchange-biased thin films

Garcia, W.J.S.; Seeger, R. L.; Silva, R.B. da; Harres, A.

doi:10.1016/j.jmmm.2017.06.001

Cited by 6 publications

(5 citation statements)

References 46 publications

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“…Signals related to SRE and SP-ISHE may be discriminated using carefully designed protocols [29][30][31][32]. A detailed study on Ta/NiFe/FeMn/Ta thin films may be found elsewhere [27], where authors concluded that the measured signal is mainly due to SRE, but an SP-ISHE contribution related to the FeMn is also present. Points represent experimental data, while solid lines are the best fit to Kittel's formula [33],…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Wireless power transfer exploring spin rectification and inverse spin Hall effects

Seeger¹,

Garcia²,

Dugato³

et al. 2018

J. Phys. D: Appl. Phys.

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Devices based on spin rectification effects are of great interest for broadband communication applications, since they allow the rectification of radio frequency signals by simple ferromagnetic materials. The phenomenon is enhanced at ferromagnetic resonance condition, which may be attained when an external magnetic field is applied. The necessity of such field, however, hinders technological applications. Exploring spin rectification and spin Hall effects in exchange-biased samples, we were able to rectify radio frequency signals without an external applied magnetic field. Direct voltages of the order of μV were obtained when Ta/NiFe/FeMn/Ta thin films were exposed to microwaves in a shorted microstrip line for a relatively broad frequency range. Connecting the films to a resistive load, we estimated the fraction of the incident radio frequency power converted into usable dc power.

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Section: Resultsmentioning

confidence: 99%

“…Measurements were carried out with H in the sample's plane, as illustrated in figure 1(c), applied along the EB axis. Further details on our experimental setup may be found in [27]. Since we used the VNA as a microwave source, the microstrips S-parameters may be recorded, providing an alternative way to probe magnetization dynamics.…”

Section: Methodsmentioning

confidence: 99%

Wireless power transfer exploring spin rectification and inverse spin Hall effects

Seeger¹,

Garcia²,

Dugato³

et al. 2018

J. Phys. D: Appl. Phys.

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“…However, the resonance frequency of bulk magnetic materials is limited by Snoek's limit [10]. A large number of experimental and theoretical works [11][12][13][14][15][16][17][18][19][20] have been devoted to overcoming the limitation and obtaining a higher resonance frequency. In particular, it is expected that magnetic thin films and multilayers could extend Snoek's limit and have higher resonance frequency (which determines the cut-off frequency for high frequency application) due to the application in electromagnetic devices.…”

Section: Introductionmentioning

confidence: 99%

Spin wave resonance frequency in ferromagnetic thin film with the biquadratic exchange interaction

Zhang,

Rong,

Wang

et al. 2023

Phys. Scr.

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Spin wave resonance (SWR) frequency in ferromagnetic thin film with the biquadratic exchange interaction, interlayer exchange coupling, film thickness, surface anisotropy field, and the external magnetic field has been investigated by using the linear spin-wave approximation and Green’s function techniques. In comparison to previous studies without considering the biquadratic exchange interaction, the SWR frequency behaviors of the energetically mid-higher modes were found to be highly sensitive to biquadratic exchange interaction. SWR frequencies of all modes are linearly proportional to external magnetic field. However, the SWR frequency has nonlinear dependence on the interlayer exchange coupling and surface anisotropy field. Moreover, the biquadratic exchange interaction enabled a considerable improvement in the effects of surface anisotropy field, interlayer exchange coupling, and external magnetic field on SWR frequency. Our results also reveal that a decrease in the SWR frequency of the corresponding mid-lower modes as the thickness of film is increased while the almost the same frequency gap between the energetically highest mode and lowest mode is obtained for the thicker film. These results could help improve the understanding of magnetic properties and promote magnetic materials applications in spintronic devices.

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“…Further studies have even found that dc current and dc voltage can be generated by the rectification effect of high‐frequency magnetization dynamics. This so‐called spin rectification effect (SRE), which is due to nonlinear coupling between an oscillating current and an oscillating resistance in magnetic structures, provides a novel technique for the study of magnetization dynamics by electrical detection. Due to its high sensitivity and feasibility, the SRE has been widely employed to study ferromagnetic resonance (FMR), spin wave resonance, and domain‐wall resonance in different ferromagnetic materials.…”

Section: Introductionmentioning

confidence: 99%

Spin Rectification dc Voltage Spectra via Sweeping Frequency

Pan

Soh

Liu

et al. 2019

Physica Status Solidi (b)

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A new measurement method of a spin rectification dc voltage spectrum through fixing the magnetic field and sweeping the frequency has been proposed, which is compared to the common method to acquire a typical spectrum via sweeping an external magnetic field. Based on the shortened microstrip fixture, the measurements of rectified dc voltage as a function of frequency have been performed. From the analysis of results of the permalloy (Py) film with various thicknesses, the magnetic parameters are presented. This method can be used in samples with magnetic domains varied with respect to the external magnetic field, such as, stripe domain structures.

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Inverse spin Hall and spin rectification effects in NiFe/FeMn exchange-biased thin films

Cited by 6 publications

References 46 publications

Wireless power transfer exploring spin rectification and inverse spin Hall effects

Wireless power transfer exploring spin rectification and inverse spin Hall effects

Spin wave resonance frequency in ferromagnetic thin film with the biquadratic exchange interaction

Spin Rectification dc Voltage Spectra via Sweeping Frequency

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