Universal electromotive force induced by domain wall motion.
The electromotive force induced by a moving magnetic domain wall in a nanostrip has been calculated theoretically and detected experimentally. It is found that the emf depends only on the domain wall transformation frequency through a universal Josephson type relation, which is closely related to the topological nature of the domain wall. Our experimental measurements confirm the theoretical prediction.
Yang
Shengyuan A
SA
Department of Physics, The University of Texas, Austin, Texas, 78712-0264, USA.
Beach
Geoffrey S D
GS
Knutson
Carl
C
Xiao
Di
D
Niu
Qian
Q
Tsoi
Maxim
M
Erskine
James L
JL