Excitation and detection of short-waved spin waves in ultrathin Ta / CoFeB / MgO-layer system suitable for spin-orbit-torque magnonics
Excitation and detection of short-waved spin waves in ultrathin Ta / CoFeB / MgO-layer system suitable for spin-orbit-torque magnonics
复制标题
适用于自旋轨道扭矩磁振子学的超薄 Ta/CoFeB/MgO 层系统中短波自旋波的激发和检测
DOI:
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
G. Gaudin
中科院分区:
文献类型:
--
作者:
T. Brächer;M. Fabre;T. Meyer;T. Fischer;O. Boulle;U. Ebels;P. Pirro;G. Gaudin
We report on the excitation and detection of short-waved spin waves with wave vectors up to about 40 radμm−1 in spin-wave waveguides made from ultrathin, in-plane magnetized Co8Fe72B20 (CoFeB). The CoFeB is incorporated in a layer stack of Ta/CoFeB/Mgo, a layer system featuring large spin orbit torques and a large perpendicular magnetic anisotropy constant. The short-waved spin waves are excited by nanometric coplanar waveguides and are detected via spin rectification and microfocussed Brillouin light scattering spectroscopy. We show that the large perpendicular magnetic anisotropy benefits the spin-wave lifetime greatly, resulting in a lifetime comparable to bulk systems without interfacial damping. The presented results pave the way for the successful extension of magnonics to ultrathin asymmetric layer stacks featuring large spin orbit torques.
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影响因子:
41.2
作者:
Demidov, Vladislav E.;Urazhdin, Sergei;Demokritov, Sergej O.
通讯作者:
Demokritov, Sergej O.
DOI:
10.1088/0022-3727/48/16/164015
发表时间:
2015
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
作者:
T. Sebastian;Y. Kawada;B. Obry;T. Brächer;P. Pirro;D. A. Bozhko;A. A Serga;H. Naganuma;M. Oogane;Y. Ando;B. Hillebrands
通讯作者:
B. Hillebrands
影响因子:
4
作者:
Demidov, V. E.;Urazhdin, S.;Demokritov, S. O.
通讯作者:
Demokritov, S. O.
影响因子:
4
作者:
Chumak, A. V.;Serga, A. A.;Hillebrands, B.
通讯作者:
Hillebrands, B.