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Domain Wall Motion in the Presence of Nuclear Spins (1998)

Dubé, M. ; Stamp, P. C. E.

Springer

Journal of low temperature physics 113 (1998), S. 1085-1090

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ISSN: 1573-7357

Source: Springer Online Journal Archives 1860-2000

Topics: Physics

Notes: Abstract We investigate the motion of a domain wall in the presence of a dynamical hyperfine field. At temperature T high compared to the hyperfine coupling, the nuclear spins create a spatially random potential landscape, with dynamics dictated by the nuclear relaxation time T 2. The distribution of the domain wall relaxation times (both in the thermal and quantum regimes) can show a long tail, characteristic of stochastic processes where rare events are important. Here, these are due to occasional strong fluctuations in the nuclear spin polarisation.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1022576922410

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