TY - JOUR
T1 - Current-excited magnetization dynamics in narrow ferromagnetic wires
AU - Togawa, Yoshihiko
AU - Kimura, Takashi
AU - Harada, Ken
AU - Akashi, Tetsuya
AU - Matsuda, Tsuyoshi
AU - Tonomura, Akira
AU - Otani, Yoshichika
PY - 2006/7/7
Y1 - 2006/7/7
N2 - We investigate the current-excited magnetization dynamics in a narrow ferromagnetic Permalloy wire by means of Lorentz microscopy, together with the results of simultaneous transport measurements. A detailed structural evolution of the magnetization is presented as a function of the applied current density. Local structural deformation, bidirectional displacement, and magnetization reversal are found below the Curie temperature with increasing the current density. We discuss probable mechanisms of observed features of the current-excited magnetization dynamics.
AB - We investigate the current-excited magnetization dynamics in a narrow ferromagnetic Permalloy wire by means of Lorentz microscopy, together with the results of simultaneous transport measurements. A detailed structural evolution of the magnetization is presented as a function of the applied current density. Local structural deformation, bidirectional displacement, and magnetization reversal are found below the Curie temperature with increasing the current density. We discuss probable mechanisms of observed features of the current-excited magnetization dynamics.
UR - http://www.scopus.com/inward/record.url?scp=33746275588&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33746275588&partnerID=8YFLogxK
U2 - 10.1143/JJAP.45.L683
DO - 10.1143/JJAP.45.L683
M3 - Article
AN - SCOPUS:33746275588
SN - 0021-4922
VL - 45
SP - L683-L685
JO - Japanese Journal of Applied Physics
JF - Japanese Journal of Applied Physics
IS - 24-28
ER -