バルクCr探針を用いたW(110)上のMn薄膜のスピン偏極STM/STS観察

書誌事項

タイトル別名
  • Spin Polarized STM/STS on Mn Thin Films on W(110) Using a Bulk Cr Tip
  • バルク Crタンシン オ モチイタ W(110)ウエ ノ Mn ハクマク ノ スピンヘンキョク STM/STS カンサツ

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説明

We performed spin-polarized scanning tunneling microscopy and spectroscopy measurements on a double layer (DL) Mn film formed on a W(110) substrate, which has a complicated spin arrangement called a conical spin spiral structure. As a spin-polarized tip for this study, we use a bulk Cr tip that can be made relatively easily and maintains the spin polarization longer than conventional magnetic thin film coated W tips do. We successfully observed images with a striped pattern on the Mn DL, which is attributed to the previously reported spin structure. The tunneling conductance measurements with non-spin polarized and spin polarized tips clarify the electronic structure and the strong spin polarization around the Fermi level of the Mn DL, respectively.

収録刊行物

  • 表面科学

    表面科学 36 (8), 403-407, 2015

    公益社団法人 日本表面科学会

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