Related Experiment Video
Updated: Apr 21, 2026

Microscopic Visualization of Porous Nanographenes Synthesized through a Combination of Solution and On-Surface Chemistry
Published on: March 4, 2021
Kondo effect mediated topological protection: Co on Sb(111)
Yinghui Yu1, Limin She, Huixia Fu
1State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences , Wuhan 430071, China.
Abstract:
We report on a Kondo effect on Co/Sb(111) mediating topological protection of the surface states against local magnetic perturbations. A sharp scanning tunneling spectroscopic peak near the Fermi energy is interpreted as a fingerprint of the Kondo resonance with a high Kondo temperature of about 200 K. Density function theory calculations reveal that the protruding Co adatoms are responsible for the Kondo peak, while the Co atoms underneath present as nonmagnetic impurities. By identifying the quasiparticle interference wavevectors, we demonstrate that only scattering channels related to backscattering confinements are observed for surfaces with and without the Co adsorption. It suggests that the Kondo effect suppresses the backscattering of the topological surface states and may help to expand the functionality of magnetically coupled topological materials for spintronics applications.
More Related Videos
09:00Experimental Methods for Spin- and Angle-Resolved Photoemission Spectroscopy Combined with Polarization-Variable Laser
Published on: June 28, 2018
06:49Radio Frequency Magnetron Sputtering of GdBa2Cu3O7âˆ'ÃŽ ´/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 STO Single-crystal Substrates
Published on: April 12, 2019
Related Concept Videos
Valence Bond Theory
Network Covalent Solids
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...
MO Theory and Covalent Bonding
Spin–Spin Coupling: One-Bond Coupling
DNA Topoisomerases
Types and Mechanism of action
Topoisomerases are divided into two main types. ...
Lattice Centering and Coordination Number
Types of Unit Cells
Imagine taking a large number of identical...