Spin properties of single-molecule magnet of double-decker Tb(III)-phthalocyanine (TbPc2) on ferromagnetic Co film characterized by spin polarized STM (SP-STM)

Ferdous Ara, Hirofumi Oka, Yasuyuki Sainoo, Keiichi Katoh, Masahiro Yamashita, Tadahiro Komeda

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

We demonstrate a direct visualization of the magnetic hysteresis of a single-molecule magnet bis(phthalocyaninato)terbium(III) (TbPc2) adsorbed on the Co islands, which covers a submonolayer region of an Au(111) surface by utilizing the spin-polarized scanning tunneling microscope (SP-STM) and monitoring the magnetotunneling resistance. We found that the TbPc2 molecule is spin polarized and attached to the ferromagnetic Co islands. The result of the SP-STM measurements showed that the spin of TbPc2 is antiferromagnetically coupled to the magnetization of the Co island. In addition, we found an opening in the hysteresis curve even with the frozen magnetization of the Co island, unlike that with near-zero remanence typically reported for the bulk crystal and the nonmagnetic substrate.

Original languageEnglish
Article number183901
JournalJournal of Applied Physics
Volume125
Issue number18
DOIs
Publication statusPublished - 2019 May 14

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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