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Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
Experimental verification of the rotational type of chiral spin spiral structures by spin-polarized scanning
Masahiro Haze1,2, Yasuo Yoshida3, Yukio Hasegawa4
1Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan. haze.masahiro.2x@kyoto-u.ac.jp.
Abstract:
We report on experimental verification of the rotational type of chiral spin spirals in Mn thin films on a W(110) substrate using spin-polarized scanning tunneling microscopy (SP-STM) with a double-axis superconducting vector magnet. From SP-STM images using Fe-coated W tips magnetized to the out-of-plane and [001] directions, we found that both Mn mono- and double-layers exhibit cycloidal rotation whose spins rotate in the planes normal to the propagating directions. Our results agree with the theoretical prediction based on the symmetry of the system, supporting that the magnetic structures are driven by the interfacial Dzyaloshinskii-Moriya interaction.
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