visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2015-11-28 10:00 
연사  
장소 E6-2, #1323 

Electron Tunneling Spectroscopy of Single and Bilayer Graphene with Hexagonal Boron Nitride as Tunneling Barrier

 

Nov. 28 (Sat.) 10:00 AM, E6-2. 1st fl. #1323
Dr. Suyong Jung, Korea Research Institute of Standards and Science


We have performed electron tunneling spectroscopy measurements on gated single and bilayer graphene devices with thin hexagonal boron nitride (h-BN) as a tunneling barrier. We can directly probe electronic structures of graphene devices by varying charge density, tunneling bias voltage and external magnetic fields. In addition, we can identify several spectra features which are in good agreement with the vibrational excitations; phonons of graphene and h-BN, and a signature of local plasmonic excitation. Upon increasing external magnetic field, the development of Landau levels (LL) is observed as early as 0.2 T and we are able to discern individual LL as many as 20 as an index for both filled and empty states, which is unprecedented in previous tunneling.

 

Contact: Heung Sun Sim, Physics Dept., (hs_sim@kaist.ac.kr)

번호 날짜 연사 제목
530 2009-02-23 16:00    Physics Colloquium : 2009 Spring file
529 2014-03-10 16:00    Physics Colloquium : 2014 Spring file
528 2022-04-14 16:00    (광학분야 특별세미나)Holographic tomography of dielectric tensors at optical frequency
527 2022-11-11 11:00    [Update 세미나영상] (응집물리 세미나) Honeycomb oxide heterostructures for quantum spin liquid file
526 2022-03-07 16:00    Climate Physics and Modelling(우리말강의)
525 2022-08-01 10:00    [Update 세미나 영상] James Webb Space Telescope & OTE Commissioning
524 2022-10-27 16:00    (광학분야 세미나) Cavity optomechanical systems for quantum transduction
523 2011-05-16 16:00    Photonics with surface plasmon polaritons
522 2016-05-17 11:00    The CERN Resonant WISP Search: Development, Results and Lesson-Learned
521 2013-09-09 16:00    Physics Colloquium : 2013 Fall
520 2018-04-06 10:00    Entanglement and thermalization in many-body systems: recent progress file
519 2015-09-15 16:00    Physics Colloquium : 2014 Fall file
518 2022-03-14 16:00    Quantitative phase imaging and artificial intelligence: label-free 3D imaging, classification, and inference
517 2023-04-27 16:00    (광학분야 세미나)On-chip spectrometers based on CMOS image sensors
516 2021-05-27 16:00    찾아가는 물리연구 현장(유럽 입자물리학연구소 소개) file
515 2016-03-11 13:30    Physics Seminar Serises : 2016 Spring file
514 2022-11-03 16:00    (광학분야 세미나) Single-photon emission from low-dimensional materials
513 2015-09-07 16:00    Physics Colloquium : 2015 Fall file
512 2022-04-11 16:00    Emergence of Statistical Mechanics in Quantum Systems
511 2022-04-04- 16:00    New paradigms in Quantum Field Theory