講演情報
[15p-P07-46]Mapping in-plane magnetization in Co thin film using laser-induced anomalous Nernst effect
〇Soichiro Mochizuki1, Itaru Sugiura2, Teruo Ono2, Takuya Satoh1, Kihiro Yamada1 (1.Science Tokyo, 2.ICR, Kyoto Univ.)
キーワード：
spintronics、spin caloritronics、anomalous Nernst effect
The anomalous Nernst effect (ANE) generates the electromotive force in the direction of a cross-product of magnetization and temperature gradient. The ANE can be studied using not only homogeneous temperature gradients formed by heaters but also localized temperature gradients generated by laser irradiations. Because a large localized temperature gradient can be created via the laser irradiation method, we can obtain information on the in-plane magnetization component in the transverse direction of a magnetic wire. However, a complete determination of the in-plane magnetization vector requires simultaneously detecting the ANE voltages in two orthogonal directions in the film plane.
Here, we report a vector imaging of the in-plane magnetization in a Co thin film using the laser-induced ANE. As a result, we succeeded in visualizing the magnetization directions in the magnetic domains. In the presentation, we would like to show experimental details and discuss the results.
Here, we report a vector imaging of the in-plane magnetization in a Co thin film using the laser-induced ANE. As a result, we succeeded in visualizing the magnetization directions in the magnetic domains. In the presentation, we would like to show experimental details and discuss the results.