Mutual control of coherent spin waves and magnetic domain walls in a magnonic device

Science ◽  
2019 ◽  
Vol 366 (6469) ◽  
pp. 1121-1125 ◽  
Author(s):  
Jiahao Han ◽  
Pengxiang Zhang ◽  
Justin T. Hou ◽  
Saima A. Siddiqui ◽  
Luqiao Liu
Keyword(s):  
Spin Wave ◽  
Domain Walls ◽  
Spin Waves ◽  
Spin Current ◽  
Magnetic Domain ◽  
Spin Transfer Torque ◽  
Successful Implementation ◽  
Domain Structures ◽  
Magnetic Domain Walls ◽  
Coherent Spin

The successful implementation of spin-wave devices requires efficient modulation of spin-wave propagation. Using cobalt/nickel multilayer films, we experimentally demonstrate that nanometer-wide magnetic domain walls can be applied to manipulate the phase and magnitude of coherent spin waves in a nonvolatile manner. We further show that a spin wave can, in turn, be used to change the position of magnetic domain walls by means of the spin-transfer torque effect generated from magnon spin current. This mutual interaction between spin waves and magnetic domain walls opens up the possibility of realizing all-magnon spintronic devices, in which one spin-wave signal can be used to control others by reconfiguring magnetic domain structures.

Switchable Spin-Current Source Controlled by Magnetic Domain Walls

Nano Letters ◽  
2014 ◽  
Vol 14 (7) ◽  
pp. 4016-4022 ◽  
Author(s):  
W. Savero Torres ◽  
P. Laczkowski ◽  
V. D. Nguyen ◽  
J. C. Rojas Sanchez ◽  
L. Vila ◽  
...  
Keyword(s):  
Domain Walls ◽  
Current Source ◽  
Spin Current ◽  
Magnetic Domain ◽  
Magnetic Domain Walls

scholarly journals Unidirectional spin-wave channeling along magnetic domain walls of Bloch type

2019 ◽  
Vol 100 (2) ◽  
Author(s):  
Y. Henry ◽  
D. Stoeffler ◽  
J.-V. Kim ◽  
M. Bailleul
Keyword(s):  
Spin Wave ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Magnetic Domain Walls

Clamped Ferroelectric and Magnetic Domain Walls and their Application to Memory Engineering

2004 ◽  
Vol 834 ◽  
Author(s):  
Eiichi Hanamura ◽  
Yukito Tanabe
Keyword(s):  
Domain Walls ◽  
Second Harmonic ◽  
Domain Boundary ◽  
Magnetic Domain ◽  
Earth Metal ◽  
Weak Ferromagnetism ◽  
Interference Effects ◽  
Magnetic Anisotropy Energy ◽  
Domain Structures ◽  
Magnetic Domain Walls

ABSTRACTA family of rare-earth metal manganites are antiferromagnetic (AFM) ferroelectrics and some of these may show also weak ferromagnetism. First we will show how to observe the ferroelectric (FEL) and AFM domain structures by the interference effects of second harmonic generation (SHG). Second, the observed clamping of the AFM domain wall (DW) to the FEL domain boundary (DB) is intuitively explained by the group theoretical consideration of the magnetic anisotropy energy depending upon the sign of the FEL polarization. Third, the application of these clamped DW-DB to the memory engineering will be briefly discussed.

scholarly journals Magnetic domain walls displacement: Automotion versus spin-transfer torque

2010 ◽  
Vol 82 (21) ◽  
Author(s):  
Jean-Yves Chauleau ◽  
Raphaël Weil ◽  
André Thiaville ◽  
Jacques Miltat
Keyword(s):  
Domain Walls ◽  
Magnetic Domain ◽  
Spin Transfer Torque ◽  
Spin Transfer ◽  
Magnetic Domain Walls

scholarly journals Tunable short-wavelength spin wave excitation from pinned magnetic domain walls

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Ben Van de Wiele ◽  
Sampo J. Hämäläinen ◽  
Pavel Baláž ◽  
Federico Montoncello ◽  
Sebastiaan van Dijken
Keyword(s):  
Spin Wave ◽  
Short Wavelength ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Wave Excitation ◽  
Spin Wave Excitation ◽  
Magnetic Domain Walls

scholarly journals Ultrafast time-evolution of chiral Néel magnetic domain walls probed by circular dichroism in x-ray resonant magnetic scattering.

2021 ◽  
Author(s):  
Cyril Lévéillé ◽  
Erick Burgos-Parra ◽  
Yanis Sassi ◽  
Fernando Ajejas ◽  
Valentin Chardonnet ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Optical Pumping ◽  
Domain Walls ◽  
Spin Current ◽  
Magnetic Domain ◽  
Magnetic Interactions ◽  
Magnetic Scattering ◽  
X Ray ◽  
Magnetic Domain Walls ◽  
Circular Dichroïsm

Abstract Non-collinear spin textures in ferromagnetic ultrathin films are attracting a renewed interest fueled by possible fine engineering of several magnetic interactions, notably the interfacial Dzyaloshinskii-Moriya interaction. This allows the stabilization of complex chiral spin textures such as chiral magnetic domain walls (DWs), spin spirals, and magnetic skyrmions. We report here on the ultrafast behavior of chiral DWs after optical pumping in perpendicularly magnetized asymmetric multilayers, probed using time-resolved circular dichroism in x-ray resonant magnetic scattering (CD-XRMS). We observe a picosecond transient reduction of the CD-XRMS, which is attributed to the spin current-induced coherent and incoherent torques within the continuously dependent spin texture of the DWs. We argue that a specific demagnetization of the inner structure of the DW induces a flow of spins from the interior of the neighboring magnetic domains. We identify this time-varying change of the DW texture shortly after the laser pulse as a distortion of the homochiral Néel shape toward a transient mixed Bloch-Néel-Bloch texture along a direction transverse to the DW.

Sign in / Sign up

Export Citation Format

Share Document