1. He also discovered the shortening of nickel through magnetisation in 1882. 2. A magnetisation distribution is achieved along the magnetic tape. 3. Then, a small magnetic field can be used to switch the magnetisation . 4. The first of these, relaxation, leads to an irreversible loss of magnetisation . 5. Finally, the distribution of the magnetisation can be read out, reproducing the original signal. 6. There are rare earth magnets that will lose there magnetisation if separated from their magnet keeper. 7. This transverse magnetisation refocuses to form a spin echo at a time " T" 8. The value of the Peltier-effect was observed to vary with the magnetisation . }} 9. The longitudinal magnetisation is then allowed to recover somewhat and after a time " T" 10. The measured Kerr rotation is proportional to the dynamic magnetisation as the spin-waves propagate in the media.
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