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相关论文: Influence of Joule heating on current-induced doma…

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We study the depinning of domain walls by pure diffusive spin currents in a nonlocal spin valve structure based on two ferromagnetic permalloy elements with copper as the nonmagnetic spin conduit. The injected spin current is absorbed by…

The effective spin pressure induced by an electric current on a domain wall in a ferromagnet is determined using a simple classical model, which allows us to extend previous theories to arbitrary domain wall widths. In particular, the role…

材料科学 · 物理学 2015-06-25 A. Vanhaverbeke , M. Viret

The current mediated domain-wall dynamics in a thin ferromagnetic wire is investigated. We derive the effective equations of motion of the domain wall. They are used to study the possibility to optimize the power supplied by electric…

介观与纳米尺度物理 · 物理学 2011-03-25 Oleg A. Tretiakov , Y. Liu , Ar. Abanov

The impact of current on static and kinetic depinning fields of a domain wall in an one dimensional ferromagnetic nanostrip is investigated by solving the Landau-Lifshitz-Gilbert equation with adiabatic and non-adiabatic spin-transfer…

材料科学 · 物理学 2023-07-19 R. Arun , P. Sabareesan , M. Daniel

The current-driven domain wall dynamics along ferrimagnetic systems are here theoretically analyzed as a function of the temperature by means of micromagnetic simulations and a one dimensional model. Contrarily to conventional effective…

应用物理 · 物理学 2019-10-23 Eduardo Martínez , Víctor Raposo , Óscar Alejos

It was found that high current density needed for the current-driven domain wall motion results in the Joule heating of the sample. The sample temperature, when the current-driven domain wall motion occurred, was estimated by measuring the…

材料科学 · 物理学 2009-11-10 A. Yamaguchi , H. Tanigawa , T. Ono , S. Nasu , K. Miyake , K. Mibu , T. Shinjo

Pulsed domain wall movement is studied here in Ni80Fe20 nanowires on SiO2, using a fully integrated electrostatic, thermoelectric, and micromagnetics solver based on the Landau-Lifshitz-Bloch equation, including Joule heating, anisotropic…

介观与纳米尺度物理 · 物理学 2016-11-23 Serban Lepadatu

When non-collinear spin textures are driven by current, an emergent electric field arises due to the emergent electromagnetic induction. So far, this phenomenon has been reported in several materials, manifesting the current-nonlinear…

In information technology devices, current-driven state switching is crucial in various disciplines including spintronics, where the contribution of heating to the switching mechanism plays an inevitable role. Recently, current-driven…

材料科学 · 物理学 2024-05-21 Myoung-Woo Yoo , Virginia O. Lorenz , Axel Hoffmann , David G. Cahill

In this work, we have investigated the domain wall (DW) depinning behavior in the notched nanowire by a micromagnetic simulation. A transverse domain wall (TW) was initially positioned at the center of notch and 1 ns length current pulse…

介观与纳米尺度物理 · 物理学 2016-03-23 Candra Kurniawan , Dede Djuhana

We study deterministic magnetic reversal of a perpendicularly magnetized Co layer in a Co/MgO/Ta nano-square driven by spin Hall torque from an in-plane current flowing in an underlying Pt layer. The rate-limiting step of the switching…

介观与纳米尺度物理 · 物理学 2015-06-18 O. J. Lee , L. Q. Liu , C. F. Pai , H. W. Tseng , Y. Li , D. C. Ralph , R. A. Buhrman

Of the new types of cryoelectronic devices under development, including phase shifters, giant magnetoresistance switches, diodes, transistors, and memory cells, some are based on hybrid superconductor-normal metal or…

介观与纳米尺度物理 · 物理学 2015-12-07 L. S. Uspenskaya , S. V. Egorov

We demonstrate numerically the ability to displace a magnetic domain wall by a remote spin current injection. We consider a long and narrow magnetic nanostripe with a single domain wall (DW). The spin-polarized current is injected…

We theoretically study the spin-polarized current flowing through a Josephson junction (JJ) in a spin injection device. When the spin-polarized current is injected from a ferromagnet (FM) in a superconductor (SC), the charge current is…

超导电性 · 物理学 2009-10-31 S. Takahashi , T. Yamashita , T. Koyama , S. Maekawa , H. Imamura

We investigate the dynamics of domain wall in ferromagnetic nanowire with spin-transfer torque. The critical current condition is obtained analytically. Below the critical current, we get the static domain wall solution which shows that the…

其他凝聚态物理 · 物理学 2010-12-30 Zai-Dong Li , Qiu-Yan Li , X. R. Wang , W. M. Liu , J. Q. Liang , Guangsheng Fu

We examine theoretically the role of spin-waves on current-induced domain wall dynamics in a ferromagnetic wire. At room temperature, we find that an interaction between the domain wall and the spin waves appears when there is a finite…

材料科学 · 物理学 2015-05-13 Yann Le Maho , Joo Von Kim , Gen Tatara

The precise manipulation of transverse magnetic domain walls in finite/infinite nanowires with artificial defects under the influence of very short spin-polarized current pulses is investigated. We show that for a classical $3d$ ferromagnet…

介观与纳米尺度物理 · 物理学 2018-01-09 A. Pivano , V. O. Dolocan

Domain wall motion along ferrimagnets is evaluated using micromagnetic simulations and a collective-coordinates model, both considering two sublattices with independent parameters. Analytical expressions are derived for strips on top of…

应用物理 · 物理学 2020-11-20 Eduardo Martínez , Víctor Raposo , Óscar Alejos

Recent studies have predicted extraordinary properties for transverse domain walls in cylindrical nanowires: zero depinning current, the absence of the Walker breakdown, and applications as domain wall oscillators. In order to reliably…

The propagation of a domain wall in a submicron ferromagnetic spin-valve stripe is investigated using giant magnetoresistance. A notch in the stripe efficiently traps an injected wall stopping the domain propagation. The authors show that…

材料科学 · 物理学 2008-04-02 J. Briones , F. Montaigne , Daniel Lacour , M. Hehn , M. J. Carey , J. R. Childress
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