visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-04-26 16:00 
일시 April 26 (Tue), 4PM 
장소 #1323(1st Floor. E6-2) 
연사 Dr. Myung-Ho Bae, Korea Research Institute of Standards and Science 

Transport spectroscopy for electronic bands in carbon-based nanomaterials with weak-bond contacts

 

April 26 (Tue), 4PM, #1323(1st Floor. E6-2)
Dr. Myung-Ho Bae, Korea Research Institute of Standards and Science

As a consequence of their unique electronic band structures, carbon-based nanomaterials (CNMs) such as carbon nanotubes and graphene exhibit intriguing quantum transports when incorporated into field-effect transistors (FETs) in which the contact resistance represents the coupling strength between the nanosystem and the bulk system.  Here, we report a new aspect of CNM quantum devices that offers transport spectroscopy in the tunnelling regime of ~1 eV and directly reflects the electronic density of states. This was accomplished using physisorption contacts with the CNMs. Our first-principles calculations reveal that charge transfer is rare between the physisorption-contacted electrodes and CNMs. Therefore, the physisorption-contacted electrode forms a physisorption interface with a considerable vacuum gap and causes little disruption to the density of states of the CNM near the contact.

 

Contact: Chan-Ho Yang, Physics Dept., (chyang@kaist.ac.kr)

번호 날짜 장소 제목
공지 2022-11-25 11:00  E6-2 #1323  [Update 세미나영상](응집물리 세미나) DMFT+ NRG: From models to real materials, from local to nonlocal correlations
48 2018-05-29 16:00  #1323, E6-2  Investigation on metal nanostructure/semiconductor junction and its applications file
47 2018-05-09 16:00  #1323, E6-2  Recent advances in thermoelectric bulk composites file
46 2019-09-18 16:00  Seminar Room #1323  Fall 2019: Physics Seminar Serises file
45 2017-03-02 16:00  #1323(E6-2. 1st fl.)  “Progress in the comparison of ARPES to DMFT for d and f strongly correlated electron systems”
44 2017-02-01 14:00  #1323(E6-2. 1st fl.)  Quantum electron optics using flying electrons
43 2016-12-09 13:30  #1323(E6-2. 1st fl.)  Entanglement area law in strongly-correlated systems
42 2016-12-8 16:00  #1323(E6-2. 1st fl.)  Dynamical Resonance between Two Optical Cavities via Optomechanical Oscillator
41 2016-11-29 16:00  #1323(E6-2. 1st fl.)  Symmetry Protected Kondo Metals and Their Phase Transitions
40 2016-11-24 16:00  #1323(E6-2. 1st fl.)  Harmonic oscillator physics with single atoms in a state-selective optical potential
39 2016-11-16 16:00  #1323(E6-2. 1st fl.)  Realizing Haldane Model in Fe-based Honeycomb Ferromagnetic Insulators
38 2016-11-11 16:00  #1323(E6-2. 1st fl.)  Dirac fermions in condensed matters
37 2016-11-11 13:30  #1323(E6-2. 1st fl.)  Bandgap Engineering of Black Phosphorus
36 2016-07-28 16:00  #1323(E6-2. 1st fl.)  Low Dimensional Electrons: On the Road to Hybrid Quantum Systems
35 2016-07-08 14:00  #1323(E6-2. 1st fl.)  Electronic quasiparticles in the quantum dimer model
34 2016-07-07 14:00  #1323(E6-2. 1st fl.)  Let there be topological superconductors
33 2016-07-08 11:00  #1323(E6-2. 1st fl.)  Isostatic magnetism
32 2016-04-19 14:00  #1323(E6-2. 1st fl.)  Nonlocal collisional electron transport in partially ionized plasma generation, structure, and stability
31 2016-12-09 16:00  #1323(E6-2. 1st fl.  Shift Charge and Spin Photocurrents in Dirac Surface States of Topological Insulator
30 2016-09-22 15:30  #1323(E6-2, 1st fl.)  Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model
29 2016-09-22 15:30  #1323(E6-2, 1st fl.)  Polarized 3He, Polarized Neutrons and New Interactions beyond the Standard Model