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From the same journal

Control of perpendicular magnetic anisotropy at the Fe/MgO interface by phthalocyanine insertion

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Author(s)

  • Takeshi Kawabe
  • Shoya Sakamoto
  • Takuya Tsukahara
  • Yoshinori Kotani
  • Kentaro Toyoki
  • Emi Minamitani
  • Yoshio Miura
  • Tetsuya Nakamura
  • Atsufumi Hirohata
  • Shinji Miwa

Department/unit(s)

Publication details

JournalPhysical Review B
DateAccepted/In press - 19 Apr 2022
DatePublished (current) - 13 May 2022
Volume105
Number of pages6
Original languageEnglish

Abstract

Perpendicular magnetic anisotropy at an interface between Fe and MgO with Co-phthalocyanine (CoPc) adsorption has been investigated. We find that the CoPc adsorption at an Fe/MgO interface increases the perpendicular magnetic anisotropy energy (PMA) while maintaining the voltage-controlled magnetic anisotropy effect. By performing X-ray magnetic circular dichroism spectroscopy measurements, we reveal that the CoPc adsorption induces hole accumulation at the Fe surface. The origin of the PMA enhancement is attributed to the increased orbital magnetic moment anisotropy of the Fe atoms.

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