Magnetic logic using nanowires with perpendicular anisotropy

Jaworowicz, J.; Vernier, N.; Ferré, J.; Maziewski, A.; Stanescu, Dana; Ravelosona, D.; Jacqueline, A.-S.; Chappert, C.; Rodmacq, B.; Diény, B.

doi:10.1088/0957-4484/20/21/215401

Cited by 42 publications

(30 citation statements)

References 24 publications

(26 reference statements)

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“…More recently, ferromagnetic nanowires proved to be useful for studies of inverse spin Hall effect 19 and spin orbit torques [20][21][22][23] . Furthermore, several realizations of spintronic logic gates [27][28][29][30][31][32] and spin wave guides 33 based on ferromagnetic nanowires have been recently proposed. Detailed understanding of magneto-transport and magneto-dynamic effects in ferromagnetic nanowires rely on the quantitative description of spin waves in this important confined geometry.…”

Section: Introductionmentioning

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: Introductionmentioning

confidence: 99%

Spin wave eigenmodes in transversely magnetized thin film ferromagnetic wires

et al. 2015

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“…2,3 While current efforts to construct such devices mostly focus on spin-polarized electric currents 4,5 or applied magnetic fields 6 as the driving force, a promising low-power alternative has been demonstrated in recent experiments 7 where electric fields move the MDWs in ferromagnetic-ferroelectric heterostructures. In such configurations, the MDWs in the ferromagnetic layer are strongly pinned onto ferroelectric domain walls (FDWs) in the ferroelectric sublayer via elastic interactions.…”

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confidence: 99%

Electric field driven magnetic domain wall motion in ferromagnetic-ferroelectric heterostructures

Wiele

Laurson

Franke

et al. 2014

Applied Physics Letters

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We investigate magnetic domain wall (MDW) dynamics induced by applied electric fields in ferromagnetic-ferroelectric thin-film heterostructures. In contrast to conventional driving mechanisms where MDW motion is induced directly by magnetic fields or electric currents, MDW motion arises here as a result of strong pinning of MDWs onto ferroelectric domain walls (FDWs) via local strain coupling. By performing extensive micromagnetic simulations, we find several dynamical regimes, including instabilities such as spin wave emission and complex transformations of the MDW structure. In all cases, the time-averaged MDW velocity equals that of the FDW, indicating the absence of Walker breakdown.

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“…[1][2][3] A number of experimental investigations for the CIDWM have been carried out using magnetic wires. [4][5][6][7][8][9][10][11][12][13][14] Recently, the CIDWM in perpendicular magnetized wires with heavy metal layer has been reported.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of spin orbit torques in a Tb-Co alloy magnetic wire by controlling its Tb composition

2017

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We investigated the current-induced domain wall motion (CIDWM) in Pt(3 nm)/TbxCo1-x(6 nm) alloy wires with various Tb composition (x). We found that the threshold current density (Jth) for the CIDWM in the TbxCo1-x alloy wires decreases with increasing x. In particular, the Jth with x = 0.37 is almost 3 times smaller than that with x = 0.23. We estimated Dzyaloshinskii-Moriya interaction (DMI) effective field (HDMI) by measuring CIDWM in a longitudinal magnetic field. We found that DMI constant (D) estimated by the HDMI also strongly depends on x. The size of the DMI may be modified by changing electronegativity or local atomic arrangement in Tb-Co alloy. These results suggest that Tb can induce strong HDMI and effectively affect CIDWM in TbxCo1-x alloy wires.

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Magnetic logic using nanowires with perpendicular anisotropy

Cited by 42 publications

References 24 publications

Spin wave eigenmodes in transversely magnetized thin film ferromagnetic wires

Spin wave eigenmodes in transversely magnetized thin film ferromagnetic wires

Electric field driven magnetic domain wall motion in ferromagnetic-ferroelectric heterostructures

Enhancement of spin orbit torques in a Tb-Co alloy magnetic wire by controlling its Tb composition

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