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相关论文: Current induced distortion of a magnetic domain wa…

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The dynamics of metastable magnetic domain walls in straight ferromagnetic nanowires under spin waves, external magnetic fields, and current induced spin transfer torque are studied by micromagnetic simulations. It is found that in contrast…

材料科学 · 物理学 2015-05-30 Mahdi Jamali , Kyung-Jin Lee , Hyunsoo Yang

A general expression of the current induced spin torque in a magnetic layered structure in the presence of external dc or ac voltages is derived in the framework of the scattering matrix approach. A detailed analysis is performed for a…

介观与纳米尺度物理 · 物理学 2010-10-05 F. Romeo , R. Citro

The inclination of the magnetic domain wall plane in electric field is observed. The simple theoretical model of this phenomenon that takes into account the spin flexoelectricity is proposed. The value of electric polarization of the…

强关联电子 · 物理学 2013-01-29 A. P. Pyatakov , A. S. Sergeev , D. A. Sechin , A. V. Nikolaev , E. P. Nikolaeva , L. E. Calvet

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 theoretically demonstrate that the presence of Dzyaloshinskii-Moriya Interaction (DMI) can lead to enhancement of the spin-motive force (SMF) arising due to field-induced ferromagnetic domain wall motion. A SMF refers to an electric…

介观与纳米尺度物理 · 物理学 2018-12-05 Yuta Yamane

We explore the possibility of exciting spin waves in insulating antiferromagnetic films by injecting spin current at the surface. We analyze both magnetically compensated and uncompensated interfaces. We find that the spin current induced…

介观与纳米尺度物理 · 物理学 2015-10-22 Matthew W. Daniels , Wei Guo , G. Malcolm Stocks , Di Xiao , Jiang Xiao

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…

Due to the difficulty in detecting and manipulating magnetic states of antiferromagnetic materials, studying their switching dynamics using electrical methods remains a challenging task. In this work, by employing heavy metal/rare…

材料科学 · 物理学 2020-01-03 Saima A Siddiqui , Jiahao Han , Joseph T Finley , Caroline A Ross , Luqiao Liu

The dynamic behaviors of magnetic domain walls have significant implications for developing advanced spintronic devices. In this study, we investigate the intriguing resonance phenomenon within the magnetic domain wall structure and its…

材料科学 · 物理学 2023-07-27 Ganghwi Kim , Dae-Han Jung , Hee-Sung Han , Ki-Suk Lee

We study current-induced dynamics of spin textures in thin magnetic nanowires. We derive effective equations of motion describing the dynamics of the domain-wall soft modes associated with topological defects. Because the magnetic domain…

介观与纳米尺度物理 · 物理学 2016-03-30 O. A. Tretiakov , Ar. Abanov

In conducting ferromagnetic materials, a moving domain wall induces eddy currents in the sample which give rise to an effective retarding pressure on the domain wall. We show here that the pressure is not just proportional to the…

无序系统与神经网络 · 物理学 2009-11-13 Francesca Colaiori , Gianfranco Durin , Stefano Zapperi

The coupling between a current and a domain wall is examined. In the presence of a finite current and the absence of a potential which breaks the translational symmetry, there is a perfect transfer of angular momentum from the conduction…

强关联电子 · 物理学 2009-11-10 S. E. Barnes , S. Maekawa

A domain wall and spin supercurrent can coexist in magnets with easy-cone anisotropy owing to simultaneous spontaneous breaking of Z$_2$ and U(1) symmetries. Their interaction is theoretically investigated in quasi one-dimensional…

介观与纳米尺度物理 · 物理学 2016-12-28 Se Kwon Kim , Yaroslav Tserkovnyak

We study spin textures in a quantum Hall Ising ferromagnet. Domain walls between ferro and unpolarized states at $\nu=2$ are analyzed with a functional theory supported by a microscopic calculation. In a neutral wall, Hartree repulsion…

介观与纳米尺度物理 · 物理学 2009-11-07 L. Brey , C. Tejedor

The control of magnetic domain walls is essential for the magnetic-based memory and logic applications. As an elementary excitation of magnetic order, spin wave is capable of moving magnetic domain walls just as the conducting electric…

材料科学 · 物理学 2018-10-18 Weichao Yu , Jin Lan , Jiang Xiao

Current-induced domain wall (DW) motion has drawn great attention in the last decades as the key operational principle of emerging magnetic memory devices. As the major driving force of the current-induced DW motion, the spin-orbit torque…

材料科学 · 物理学 2017-04-26 Soong-Geun Je , Sang-Cheol Yoo , Joo-Sung Kim , Joon Moon , Byoung-Chul Min , Sug-Bong Choe

We report the rectifying effect of a constant-wave radio frequency (RF) current by a magnetic domain wall (DW) on a single-layered ferromagnetic wire. A direct-current (DC) voltage is generated by the spin torque diode effect, which is a…

材料科学 · 物理学 2007-06-13 A. Yamaguchi , T. Ono , Y. Suzuki , S. Yuasa , H. Miyajima

Charge resistance and spin torque are generated by coherent carrier transport through ferromagnetic 360 degree domain walls, although they follow qualitatively different trends than for 180 degree domain walls. The charge resistance of 360…

介观与纳米尺度物理 · 物理学 2009-09-22 E. A. Golovatski , M. E. Flatté

In most ferromagnets the magnetization rotates from one domain to the next with no preferred handedness. However, broken inversion symmetry can lift the chiral degeneracy, leading to topologically-rich spin textures such as spin-spirals and…

材料科学 · 物理学 2016-01-29 Satoru Emori , Uwe Bauer , Sung-Min Ahn , Eduardo Martinez , Geoffrey S. D. Beach

Magnetic domain walls are pinned strongly by abrupt changes in magnetic anisotropy. When driven into oscillation by a spin-polarized current, locally pinned domain walls can be exploited as tunable sources of short-wavelength spin waves.…

介观与纳米尺度物理 · 物理学 2018-08-29 Pavel Baláž , Sampo J. Hämäläinen , Sebastiaan van Dijken