Spin Polarization of Single Organic Molecule Using Spin-Polarized STM

  • Toyo Kazu YamadaEmail author
Conference paper
Part of the Advances in Atom and Single Molecule Machines book series (AASMM)


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.


Spin-polarized STM Molecule Surface magnetism Spin polarization Normalization 



We thank Prof. D.r K. Nakamura (Mie Univ.) for the first-principle calculations of the metal-free phthalocyanine molecules on Fe(001). We thank Dr. L. Gerhard (Karlsruhe Institute of Technology) and for careful reading of our manuscript. This work was supported by JSPS KAKENHI Grant Number 23681018 and 25110011.


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Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  1. 1.Chiba UniversityInage-Ku Chiba-Shi, ChibaJapan

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