T Ikuta and R Shimizu 1974 J. Phys. D: Appl. Phys. 7 726 doi:10.1088/0022-3727/7/5/309
T Ikuta and R Shimizu
Show affiliationsThe dynamic response of magnetic domain walls to applied fields in yttrium orthoferrite grown by the flux method was observed by using a light-emitting diode as a stroboscopic light source. The observed relation between strip domain width and time is not a simple exponential function as calculated from a simple relaxation model, but is more complicated, having two different regions of response time. The estimated relation of domain wall velocity with drive field indicates a remarkable nonlinear behaviour, and this is consistent with results observed by the bubble collapse method previously reported by the authors. Two critical velocities, about 4000-5000 cm s−1 and about 150 cm s−1, were confirmed in the present experiment.
Issue 5 (21 March 1974)
Received 20 July 1973
T Ikuta and R Shimizu 1974 J. Phys. D: Appl. Phys. 7 726
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