Abstract
One-nm-size single organic molecules have attracted interest as a key material to realize ultra-small spintronic devices such as single-molecule giant magnetoresistance memory. The origin of such magnetic phenomena is spin polarization vector in the single molecules induced by contacting magnetic electrodes. Atomically resolved spin-polarized STM has been used to measure quantitatively the spin polarization; however, in this study we point out that the reported method includes crucial ambiguity. By using the normalized differential conductance (dI/dV)/T, the true spin polarization of the single molecules on magnetic domains is revealed.
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