Effect of photoexcited carrier density on spin diffusion coefficient and helical spin lifetime

We investigate the effect of the photoexcited carrier density on helical spin dynamics using time- and spatially resolved magneto-optical Kerr rotation measurements. The helical spin lifetime is extended by increasing the photoexcited electron spin density because the phase decoherence by spin prece...

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Bibliographic Details
Main Authors: Ryo Tokimitsu, Takachika Mori, Jun Ishihara, Makoto Kohda, Yuzo Ohno, Kensuke Miyajima
Format: Article
Language:English
Published: American Physical Society 2025-04-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.7.023072
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