Vectorial field STM study on a topological and correlated magnet
ORAL
Abstract
We utilize a combination of vector magnetic field and high resolution scanning tunneling microscopy to visualize the electronic response to vector magnetization in an iron-tin topological magnet. Atomically resolved images of the cleaving surface show both an iron-tin kagome lattice and a tin honeycomb lattice. We find that a quantum electronic state from the kagome lattice couples strongly and 3D-anisotropically with the magnetization. Moreover, the orbital symmetry of this quantum state can be controlled by the vector magnetic field. These large and anisotropic electronic responses cannot be explained by conventional Zeeman physics, but strongly point to a topological origin. These results will help us understand the interplay between magnetism and topological order in a correlated magnet.
*US DOE under Basic Energy Sciences (Grant No. DOE/BES DE-FG-02-05ER46200) and the Gordon and Betty Moore Foundation
–
Presenters
Jiaxin Yin
Princeton Univ
Authors
Jiaxin Yin
Princeton Univ
Songtian Sonia Zhang
Princeton Univ
Princeton University
Ilya Belopolski
Princeton Univ
Princeton University
Princeton U.
Guoqing Chang
National University of Singapore
Institute of Physics, Academica Sinica
Institute of Physics, Academia Sinica
Princeton Univ
National U. of Singapore
Biao Lian
Princeton Univ
Princeton
Center for Theoretical Science, Princeton University
Hao Zheng
Shanghai Jiao Tong University
Shanghai Jiao Tong Univ
Princeton Univ
Shuang Jia
Peking Univ
Physics, Peking University
Peking University
International Center for Quantum Materials, Peking University
Zhongyi Lu
Renmin University of China
Hsin Lin
Academia Sinica
National University of Singapore
Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore
