Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session F10: Advances in Scanned Probe Microscopy 3: Scanning Probes Spectroscopic Techniques
8:00 AM–10:12 AM,
Tuesday, March 3, 2020
Room: 108
Sponsoring
Unit:
GIMS
Chair: Stephen Jesse, University of Tennessee
Abstract: F10.00003 : Bulk ferromagnetic tips for spin-polarized scanning tunneling microscopy
Presenter:
Masahiro Haze
(Univ of Tokyo-Kashiwanoha)
Authors:
Masahiro Haze
(Univ of Tokyo-Kashiwanoha)
Hung-Hsiang Yang
(Univ of Tokyo-Kashiwanoha)
Kanta Asakawa
(Univ of Tokyo-Kashiwanoha)
Ryosuke Yamamoto
(Univ of Tokyo-Kashiwanoha)
Nobuyuki Watanabe
(Univ of Tokyo-Kashiwanoha)
Yasuo Yoshida
(Univ of Tokyo-Kashiwanoha)
Yukio Hasegawa
(Univ of Tokyo-Kashiwanoha)
In this study, we demonstrate that chemically etched bulk ferromagnetic Ni and Fe tips are ones of the best choices for reliable SP-STM probes using an antiferromagnetic spin-spiral sample; Mn double layers formed on W(110). We also demonstrated that their magnetization direction can be easily controlled by external magnetic fields. This work provides new options for the magnetic probes, opening up versatility of SP-STM.
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