Search Results - "Schwittek, J"

Photoinduced Barkhausen effect in the ferromagnetic semiconductor (Ga,Mn)As by Astakhov, G V, Schwittek, J, Schott, G M, Gould, C, Ossau, W, Brunner, K, Molenkamp, L W

“…Magnetization of ferromagnetic materials commonly occurs via random jumps of domain walls between pinning sites, a phenomenon known as the Barkhausen effect…”
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Nonthermal photocoercivity effect in a low-doped (Ga,Mn)As ferromagnetic semiconductor by Astakhov, G V, Hoffmann, H, Korenev, V L, Kiessling, T, Schwittek, J, Schott, G M, Gould, C, Ossau, W, Brunner, K, Molenkamp, L W

“…We report a photoinduced change of the coercive field, i.e., a photocoercivity effect (PCE), under very low intensity illumination of a low-doped (Ga,Mn)As…”
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Non-thermal photocoercivity effect in a ferromagnetic semiconductor by Astakhov, G. V, Hoffmann, H, Korenev, V. L, Kiessling, T, Schwittek, J, Schott, G. M, Gould, C, Ossau, W, Brunner, K, Molenkamp, L. W

“…Phys. Rev. Lett. 102, 187401 (2009) We report a photoinduced change of the coercive field, i.e., a photocoercivity effect (PCE), under very low intensity…”
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