単一ナノ分子・磁気抵抗素子 —スピン偏極STMによる単一分子電子スピン伝導測定—

山田 豊和

doi:10.1380/jsssj.34.443

第32回表面科学学術講演会特集号 [II]

単一ナノ分子・磁気抵抗素子

—スピン偏極STMによる単一分子電子スピン伝導測定—

山田豊和

著者情報

キーワード: surface magnetism, single molecule, magnetoresistance, scanning tunneling microscopy, spinpolarized scanning tunneling microscopy

ジャーナルフリー

2013 年 34 巻 8 号 p. 443-448

DOI https://doi.org/10.1380/jsssj.34.443

詳細

抄録

Giant magnetoresistance (GMR) through a single phthalocyanine molecule (H₂Pc) was studied by means of a spin-polarized scanning tunneling microscopy (STM) technique. Single molecular magnetic junction was fabricated by contacting a ferromagnetic STM tip to a single molecule on nano magnets. We obtained GMR of +60% and −50% through [Co/H₂Pc/Co(111)] and [Fe/H₂Pc/Mn(001)] junctions, respectively, in ultra-high vacuum at 4.6 K. Single organic molecules can be a new material for spintronics.

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