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Visualizing atomic structure and magnetism of 2D magnetic insulators via tunneling through graphene by Qiu, Zhizhan ;Holwill, Matthew ;Olsen, Thomas ;Lyu, Pin ;Li, Jing ;Fang, Hanyan ;Yang, Huimin ;Kashchenko, Mikhail ;Novoselov, Kostya S. ;Lu, Jiong is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

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## Abstract The discovery of two-dimensional (2D) magnetism combined with van der Waals (vdW) heterostructure engineering offers unprecedented opportunities for creating artificial magnetic structures with non-trivial magnetic textures. Further progress hinges on deep understanding of electronic and magnetic properties of 2D magnets at the atomic scale. Although local electronic properties can be probed by scanning tunneling microscopy/spectroscopy (STM/STS), its application to investigate 2D magnetic insulators remains elusive due to absence of a conducting path and their extreme air sensitivity. Here we demonstrate that few-layer CrI~3~ (FL-CrI~3~) covered by graphene can be characterized electronically and magnetically via STM by exploiting the transparency of graphene to tunneling electrons. STS reveals electronic structures of FL-CrI~3~ including flat bands responsible for its magnetic state. AFM-to-FM transition of FL-CrI~3~ can be visualized through the magnetic field dependent moiré contrast in the dI/dV maps due to a change of the electronic hybridization between graphene and spin-polarised CrI~3~ bands with different interlayer magnetic coupling. Our findings provide a ge

Who reads Visualizing atomic structure and magnetism of 2D magnetic insulators via tunneling through graphene?

Author

Qiu, Zhizhan ;Holwill, Matthew ;Olsen, Thomas ;Lyu, Pin ;Li, Jing ;Fang, Hanyan ;Yang, Huimin ;Kashchenko, Mikhail ;Novoselov, Kostya S. ;Lu, Jiong

Publisher

Springer Science and Business Media LLC

Published

2021

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)