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# EUV fig 2.png

## Appears In

                        - Dynamic EUV Imaging and Spectroscopy for Microelectronics

**Mechanisms for direct light-induced spin transfer in Co2MnGe.** The probability for exciting a spin-up (majority) versus spin-down (minority) electron from the valence band in the B2 phase for different pump energies in **(A)** Mn sites. Note that for a 1.55-eV pump, the probability is higher for spin-up electrons to be excited from Mn. **(B)** Probability for excitations in Co sites. In contrast to the Mn result, the probability is higher for minority electrons to be excited in Co. **(C)** Illustration of a process that leads to direct optical transfer of spin polarization from Mn to Co. The initial-state wave function is hybridized and composed of both Mn and Co-d states, with a larger contribution from the Mn atom. In the final state, the situation is reversed, and the Co-d states dominate. Hence, when an electron is optically excited from the initial- to the final-state wave function, this is associated with a transfer of spin polarizatiom from Mn to Co.

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