양자물질초전도체창의연구소에서 KAIST의 이진환 교수님을 초청하여 아래와 같이 세미나를 개최합니다.

학과 구성원 여러분의 많은 참석을 부탁드립니다.

○ Date/time: 2018. 11. 23(Fri.) 11:00

○ Place: Creative Learning Room, 7th Floor in Samsung Library 

○ Speaker: Prof. Jhinhwan Lee (KAIST)

○ Title: Barrier-bound States in Flat-band Systems

○ Abstract:  As the fundamental quantum mechanical theory predicts, electronic states bound to potential wells in any dimension should be below the background energy. However, with the help of atomic lattice potentials with a flat electron band in momentum space in the background, an atomically thin 1D potential wall can possess wall-centered bound states above the background energy. The phenomenon is found in a real system of Pd monolayer on CrO2 substrate using spin-polarized STM technique and compared with real-space QPI simulations using realistic 2D Pd band structure.