A boundless flat magnetic film of thickness h includes one domain wall G, separating two half-planes with opposite magnetization ±J0 (figure). Vector J0 is orthogonal to the film. The film is placed in a uniform electric field E||J0. Above the interface at a distance L > h, an electron moves parallel to it at a constant speed. At what value of E is such a movement possible?
Detailed solution. Format gif
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