Erratum: Continuous Generation of Spinmotive Force in a Patterned Ferromagnetic Film [Phys. Rev. Lett.<b>107</b>, 236602 (2011)]

Yamane, Yuta; Sasage, K.; An, Toshu; Harii, Kiyonori; Ohe, Jun–ichiro; Ieda, Jun’ichi; Barnes, S. E.; Saitoh, Eiji; Maekawa, Sadamichi

doi:10.1103/physrevlett.113.179901

Cited by 15 publications

(18 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Through many years of extensive study [3,4], it has been demonstrated that STT is a powerful tool to induce the magnetization dynamics in ferromagnetic nanostructures. In contrast, SMF has received much less attention [8][9][10] since SMF is very weak and thus inefficient to generate the spin current.…”

mentioning

confidence: 99%

Prediction of Giant Spin Motive Force due to Rashba Spin-Orbit Coupling

et al. 2012

View full text Add to dashboard Cite

Magnetization dynamics in a ferromagnet can induce a spin-dependent electric field through a spin motive force. Spin current generated by the spin-dependent electric field can in turn modify the magnetization dynamics through spin-transfer torque. While this feedback effect is usually weak and thus ignored, we predict that in Rashba spin-orbit coupling systems with a large Rashba parameter α(R), the coupling generates the spin-dependent electric field [±(α(R)m(e)/eħ)(z[over ^]×∂m/∂t)], which can be large enough to modify the magnetization dynamics significantly. This effect should be relevant for device applications based on ultrathin magnetic layers with strong Rashba spin-orbit coupling.

show abstract

mentioning

confidence: 99%

Prediction of Giant Spin Motive Force due to Rashba Spin-Orbit Coupling

et al. 2012

View full text Add to dashboard Cite

show abstract

“…The experiments that have observed SMF so far are all done in FMs [15][16][17][18][19]. A question naturally arises; can one expect SMF in materials with different magnetic orderings from FM, such as antiferromagnets (AFMs) [20][21][22]?…”

mentioning

confidence: 99%

Electric voltage generation by antiferromagnetic dynamics

2016

View full text Add to dashboard Cite

We theoretically demonstrate dc and ac electric voltage generation due to spinmotive forces originating from domain wall motion and magnetic resonance, respectively, in two-sublattice antiferromagnets. Our theory accounts for the canting between the sublattice magnetizations, the nonadiabatic electron spin dynamics, and the Rashba spin-orbit coupling, with the inter-sublattice electron dynamics treated as a perturbation. This work suggests a new way to observe and explore the dynamics of antiferromagnetic textures by electrical means, an important aspect in the emerging field of antiferromagnetic spintronics, where both manipulation and detection of antiferromagnets are needed.Introduction.-In magnetic materials, the exchange interaction between the conduction electron spin and the local magnetization is responsible for a variety of important phenomena. Among the spintronic effects caused by this interaction, spin-transfer torque provides a path to promising information technology by enabling the angular momentum to be transferred between the electrons and magnetization [1,2]. The same interaction can also mediate a transfer of energies between the two channels. Such a transfer is mediated by the spinmotive force (SMF) [3][4][5][6], where magnetic energies stored by the magnetization can be transformed to an electric voltage. Theoretically, the SMF is attributed to a spin-dependent electric field arising due to the exchange interaction [7][8][9][10][11][12][13][14], termed spin electric field. The SMF reflects the temporal and spatial variations of the magnetization, and thus offers a powerful way of probing and exploring the dynamics and nature of various magnetic textures.

show abstract

“…Spin currents cannot be directly measured, but they couple to other processes that can. In ferromagnets, spin currents generate charge currents, which in turn generate electric voltages [126][127][128][129][130][131][132][133][134][135], and the generation of spin currents enhances magnetic damping [136][137][138][139][140][141][142].…”

Section: Discussionmentioning

confidence: 99%

Self-consistent calculation of spin transport and magnetization dynamics

et al. 2013

View full text Add to dashboard Cite

A spin-polarized current transfers its spin-angular momentum to a local magnetization, exciting various types of current-induced magnetization dynamics. So far, most studies in this field have focused on the direct effect of spin transport on magnetization dynamics, but ignored the feedback from the magnetization dynamics to the spin transport and back to the magnetization dynamics. Although the feedback is usually weak, there are situations when it can play an important role in the dynamics. In such situations, simultaneous, self-consistent calculations of the magnetization dynamics and the spin transport can accurately describe the feedback. This review describes in detail the feedback mechanisms, and presents recent progress in self-consistent calculations of the coupled dynamics. We pay special attention to three representative examples, where the feedback generates non-local effective interactions for the magnetization after the spin accumulation has been integrated out. Possibly the most dramatic feedback example is the dynamic instability in magnetic nanopillars with a single magnetic layer. This instability does not occur without non-local feedback. We demonstrate that full self-consistent calculations generate simulation results in much better agreement with experiments than previous calculations that addressed the feedback effect approximately.The next example is for more typical spin valve nanopillars. Although the effect of feedback is less dramatic because even without feedback the current can make stationary states unstable and induce magnetization oscillation, the feedback can still have important consequences. For instance, we show that the feedback can reduce the linewidth of oscillations, in agreement with experimental observations. A key aspect of this reduction is the suppression of the excitation of short wave length spin waves by the non-local feedback.Finally, we consider nonadiabatic electron transport in narrow domain walls. The non-local feedback in these systems leads to a significant renormalization of the effective nonadiabatic 3 spin transfer torque. These examples show that the self-consistent treatment of spin transport and magnetization dynamics is important for understanding the physics of the coupled dynamics and for providing a bridge between the ongoing research fields of current-induced magnetization dynamics and the newly emerging fields of magnetization-dynamics-induced generation of charge and spin currents.

show abstract

Erratum: Continuous Generation of Spinmotive Force in a Patterned Ferromagnetic Film [Phys. Rev. Lett.107, 236602 (2011)]

Cited by 15 publications

References 11 publications

Prediction of Giant Spin Motive Force due to Rashba Spin-Orbit Coupling

Prediction of Giant Spin Motive Force due to Rashba Spin-Orbit Coupling

Electric voltage generation by antiferromagnetic dynamics

Self-consistent calculation of spin transport and magnetization dynamics

Contact Info

Product

Resources

About