Atomic-Scale investigations of MnTe with Scanning Tunneling Microscopy

ORAL

Abstract

MnTe has attracted considerable attention as a platform for exploring altermagnetism—a novel form of magnetism combining antiferromagnetic compensation with anisotropic spin-polarized band structures. Recently, the g-wave altermagnetism of MnTe has been demonstrated by angle resolved photoemission, inelastic neutron scattering, and transport studies. Scanning tunneling microscopy and spectroscopy (STM/S) provides a powerful local probe that enables atomic-scale investigations of the surface morphology, defect structure, and local density of states. Here we present STM/S results from the (0001) surface of cleaved single crystal MnTe. We report atomically resolved images and surface dependent measurements of the local density of states, enabling real-space mapping of the electronic structure.

*This work was primarily supported by the NSF through the Center for Dynamics and Control of Materials: an NSF Materials Research Science and Engineering Center under cooperative agreement no. DMR-1720595. Other supports were from NSF grant no. DMR-2219610 and US Air Force grant no. FA2386-21-1-4061. 

–

Presenters

  • Andrew Murphy

    • University of Texas at Austin

Authors

  • Andrew Murphy

    • University of Texas at Austin

  • Xiaoyu Wei

    • University of Texas at Austin

  • Yu-Tung Lin

    • Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
    • National Tsing Hua University

  • Kyle W Fruhling

    • Boston College

  • Siddharth Nandanwar

    • Boston College

  • Xiaohan Yao

    • Boston College

  • Calum Taylor

    • Boston College

  • Fazel Tafti

    • Boston College
    • Department of Physics, Boston College

  • Pin-Jui Hsu

    • Department of Physics, National Tsing Hua University, Hsinchu, Taiwan
    • National Tsing Hua University

  • Chih-Kang Shih

    • University of Texas at Austin