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IBM-Forscher bringen Elektronen-Spins zum Tanzen im Reigen

Helical spin modes and the PSH. a, The spins of the two helical spin modes ?+ and ?- rotate with opposite helicity as the electron moves along y. The Sz(y) of the two modes is the same. b, Spins precess about an external magnetic field Bx such that the ?+ mode is shifted towards -y if Bx < 0 is applied. c, d, Maps of Sz(y,t) show the time evolution of the PSH for Bx = 0 (c) and Bx = -1T (d). Sz(y) oscillates in both cases, but for Bx = -1T, the position of constant phase, y0, is shifted with t (marked by the dashed line). (Bild: Nature Physics/ IBM Research Zürich) arrow back arrow forward Image Zoom
Helical spin modes and the PSH. a, The spins of the two helical spin modes ?+ and ?- rotate with opposite helicity as the electron moves along y. The Sz(y) of the two modes is the same. b, Spins precess about an external magnetic field Bx such that the ?+ mode is shifted towards -y if Bx < 0 is applied. c, d, Maps of Sz(y,t) show the time evolution of the PSH for Bx = 0 (c) and Bx = -1T (d). Sz(y) oscillates in both cases, but for Bx = -1T, the position of constant phase, y0, is shifted with t (marked by the dashed line). (Bild: Nature Physics/ IBM Research Zürich)
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