visual
visual
Development fund

Development
fund
gogle

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

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

2015.11.25 11:13

관리자 조회 수:135

seminar Date  
Date & Time 2015/11/28, 10AM 
Venue E6-2, #1323 
Speaker Dr. Suyong Jung (Korea Research Institute of Standards and Science) 

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)

목록
번호 seminar Date Venue 제목
공지     Spring 2019: Physics Seminar Serises
공지     Spring 2019: Physics Colloquium
공지   Seminar Room #1323  Fall 2017: Physics Seminar Serises
공지   Seminar Room 1501  Fall 2017: Physics Colloquium
85   E6-2, #1501  [Open lecture series] How to write a good scientific paper
84   E6-2, #1323  Samarium Hexaboride: Is it a Topological insulator?
83   E6-2, #1323  Hybrid solid state spin qubits in wide bandgap semiconductors
82   E6-2, #1323  Topology-based understanding of spin dynamics in inhomogeneously magnetized systems
81   E6-2, #1323  Rapid heating of matter using high power lasers
80   E6-2, #1323  Emergent Collective Phenomena and Functions at Reduced Dimensions
79   E6-2, #1323  What's Beyond the Standard Model? Lessons from Run I and what might come in Run II
»   E6-2, #1323  Electron Tunneling Spectroscopy of Single and Bilayer Graphene with Hexagonal Boron Nitride as Tunneling Barrier
77   E6-2, #1323  Introducing extra dimensions to spectroscopic studies of advanced quantum materials
76   E6-2, #1323  SWELLABLE COLLOIDAL PARTICLES ARE SWELL
75   E6-2, #1323  Dynamical mean field theory studies on heavy fermion system
74   E6-2, #1323  Quantum spin liquid in the 1/3 depleted triangular lattice Ba3(Ru1-xIrx)Ti2O9
73   E6-2, #1323  Mott Physics in the Strong Spin-Orbit Coupling Regime
72   E6-2, #1323  Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data
71   E6-2, #1323  2016 Fall, Physics Seminar Serises file
70   E6-2(1st fl.), #1323  Nanoscale Thermal Physics: Seebeck Effect and Nanoscale Friction
69   E6-2(1st fl) #1323  Quantum Electrical Transport in Topological Insulator Nanowires
68   E6-2 #1323 (1st floor)  Large-scale Silicon Photonic MEMS Switches
67   E6-1323  [2015/07/15 2PM] Dr. Se Young Park(Rutgers Univ.) Electronic and optical properties of titanate-based oxide superlattices / Dr. Se Young Park (Rutgers University) / E6-1323
66   E6, 1501  Physics Colloquium : 2015 Fall file
쓰기