Extended Data Fig. 7: Optical spin orientation as a function of excitation power and temperature for ν = −1 and ν = −0.8. | Nature

Extended Data Fig. 7: Optical spin orientation as a function of excitation power and temperature for ν = −1 and ν = −0.8.

From: Optical control over topological Chern number in moiré materials

Extended Data Fig. 7: Optical spin orientation as a function of excitation power and temperature for ν = −1 and ν = −0.8.The alternative text for this image may have been generated using AI.

a, For the ICI at ν = −1, efficient optical spin orientation is maintained up to 5 K, although higher excitation powers are required for increasing base temperatures. Between 5 and 7 K, the spin orientation becomes ineffective. b, For the ferromagnetic metal at ν = −0.77, optical spin orientation remains effective up to 1.1 K. Above this temperature, the orientation becomes partial at 1.4 K and is no longer observed at higher temperatures.

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