Detection of magnetic domain wall in a permalloy wire using a semiconductor and ferromagnetic hybrid structure

摘要

Using the local Hall effect (ME), we have succeeded in detecting a magnetic domain wall (DW) trapped in a penrialloy Ni80Fe20 wire and in clearly distinguishing whether the DW structure is a head-to-head or a tail-to-tail DW The LHE method has an advantage of large signal and makes it possible to investigate the inner DW structure.