Abstract
Spin injection, spin accumulation and spin detection have been investigated in few-layer graphene lateral spin valves at room temperature. Compared to the zero value of spin accumulation signal in Co/Graphene/Co lateral spin valve even after thermal treatment, clear spin accumulation signals were observed in Co/MgO/Graphene/MgO/Co lateral spin valve after 270 °C thermal annealing. Our finding provides a robust way to achieve the spin injection in graphene lateral spin valves.
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