Spin echo without an external permanent magnetic field

Details Spin echo without an external permanent magnetic field Spin echo without an external permanent magnetic field

2006-09-19

arxiv.org/abs/cond-mat/0609490v1

Phys. Rev. B 76, 064301 (2007).

Physics

Condensed Matter

Other Condensed Matter

Scientific paper

10.1103/PhysRevB.76.064301

The spin echo techniques aim at the elimination of the effect of a random magnetic field on the spin evolution. These techniques conventionally utlize the application of a permanent field which is much stronger than the random one. The strong field, however, may also modify the magnetic response of the medium containing the spins, thus altering their ``natural'' dynamics. We suggest an iterative scheme for generating a sequence of pulses which create an echo without an external permanent field. The approximation to the ideal echo improves with the sequence length.

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