Zero-field spin torque oscillation in Co2(Fe, Mn)Si with a point contact geometry
Zero-field spin torque oscillation in Co2(Fe, Mn)Si with a point contact geometry
复制标题
具有点接触几何形状的 Co2(Fe, Mn)Si 中的零场自旋扭矩振荡
DOI:
10.1063/1.4914375
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发表时间:
2015
影响因子:
4
通讯作者:
K. Takanashi
中科院分区:
文献类型:
--
作者:
Tokujirou Yamamoto;T. Seki;T. Kubota;H. Yako;K. Takanashi
We show spin torque oscillation at zero external magnetic field using a point-contact giant magnetoresistance device with a highly spin-polarized Co2Fe0.4Mn0.6Si (CFMS) Heusler alloy. The device emitted a high rf power (Prf) signal with a narrow spectral linewidth of 3 MHz without external magnetic field. Depending on the applied current, mode changes were clearly observed, and a large Prf of 25.7 nW was achieved. The large Prf and the high coherency of oscillation are attributable to the combination of the high spin-polarization of CFMS and the advantages of point-contact geometry.
影响因子:
41.2
作者:
Demidov, Vladislav E.;Urazhdin, Sergei;Demokritov, Sergej O.
通讯作者:
Demokritov, Sergej O.
影响因子:
4
作者:
Sebastian, T.;Ohdaira, Y.;Hillebrands, B.
通讯作者:
Hillebrands, B.