Evidence for the interaction between 90° domain walls and dislocation tangles in high-purity iron from magnetomechanical damping experiments
- 1 March 1979
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 50 (B3) , 2140-2142
- https://doi.org/10.1063/1.327084
Abstract
The internal stress field, σi, which mobile 90° magnetic domain walls have to overcome can be determined by magnetomechanical damping experiments. It is shown on iron specimens strained up to 3% at room temperature, that σi is proportional to the square root of the dislocation density i.e. to the density of tangled dislocations. During further straining at 77 K, it is observed that the mobility of the 90° domain walls increases while the dislocation density inside the tangles decreases. A satisfactory interpretation of the low temperature results is obtained by calculating the dependance of σi on the density of tangled dislocations for a specimen prestrained 3% at room temperature.This publication has 2 references indexed in Scilit:
- Evidence for the interaction between magnetic domain walls and dislocations in high-purity iron from magnetomechanical damping experimentsPhysica Status Solidi (a), 1978
- A study on the interaction between magnetic domain walls and dislocations in pure iron by measurements at low amplitudes of magnetoelastic dampingPhysica Status Solidi (a), 1977