Metallic surface states in a correlated d-electron topological Kondo insulator candidate FeSb <sub>2</sub>
Metallic surface states in a correlated d-electron topological Kondo insulator candidate FeSb <sub>2</sub>
Significance The correlation-driven topological insulator is a poorly understood state of matter where topological protection is afforded in the absence of well-defined quasiparticles. Ongoing research is hampered by the scarcity of model material families, consisting of only the 4f rare-earth boride compounds thus far. Here we establish a class of …