Detection of femtosecond spin voltage pulses in a thin iron film
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Date
2020-11
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Journal Article
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Abstract
We present experimental evidence of a spin voltage-a difference between the chemical potentials of the two spin directions-in a thin iron film based on spin-and time-resolved photoemission spectroscopy. This voltage is the driving force for a spin current during the ultrafast demagnetization of the sample. The observed magnitude is on the order of 50 mV, a value that is quite consistent with predictions based on particle conservation and persists for approximately 100 fs.
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7 (6)
Pages / Article No.
65101
Publisher
American Institute of Physics
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03815 - Vaterlaus, Andreas / Vaterlaus, Andreas