Electron Tunneling Spectroscopy of Single and Bilayer Graphene with Hexagonal Boron Nitride as Tunneling Barrier
2015.11.25 11:12
장소 | E6-2, #1323 |
---|---|
일시 | 2015/11/28, 10AM |
연사 | 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)
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
200 | Jul 3rd, 2019 (Wed) | E6-2, 2501 | Kyung Soo Choi |
Many-body quantum electrodynamis (QED) with atoms and photons: A new platform for quantum optics"
![]() |
199 | Jul. 07 (Thu.) 2PM | #1323(E6-2. 1st fl.) | Dr. Eun Ah Kim, CORNELL UNIV. | Let there be topological superconductors |
198 | Jul. 08 (Fri.) 11:00 AM | #1323(E6-2. 1st fl.) | Dr. Michael Lawler(Binghampton Univ. / Cornell Univ.) | Isostatic magnetism |
197 | Jul. 08 (Fri.) 2PM | #1323(E6-2. 1st fl.) | Dr. Junhyun Lee, Harvard University | Electronic quasiparticles in the quantum dimer model |
196 | Jul. 14th (THU), 13:30 | E6 #1501 & Zoom | Dr. Jahyun Koo(Institute of Natural Science, KAIST) | Electronic structure and anomalous transport properties of topological materials by first principle calculation |
195 | Jul. 14th (THU), 14:15 | E6 #1501 & Zoom | Dr. Hyeong Jun LEE(Institute of Natural Science, KAIST) | Hund and electronic correlations in ruthenium-based systems |
194 | Jul. 14th (THU), 15:00 | E6 #1501 & Zoom | Dr. Sunghun Kim(Institute of Natural Science, KAIST) | Pure two-dimensional quantum electron liquid and its phase transition |
193 | Jul. 28 (Thu.) 4PM | #1323(E6-2. 1st fl.) | Prof. Johannes Pollanen, Jerry Cowen Chair of Experimental Physics at Michigan State University | Low Dimensional Electrons: On the Road to Hybrid Quantum Systems |
192 | July 10 (Wed.), 04:00 PM- | Academic Cltural Complex (E9) 5층 스카이라운지 | Prof. Sidney Nagel/Young-Kee Kim |
Public Lectures
![]() |
191 | July 13, 2018 at 14:00 | Room 5318, KAIST Natural Sciences Lecture Hall(E6). | Prof. Ian Lewis (The University of Kansas, Department of Physics & Astronomy) | Loop Induced Single Top Partner Production and Decay at the LHC |
190 | July 2, 2020 (Thursday) | Zoom Video Conference Seminar | Dr. Emmanuel Flurin (CEA Saclay) |
An irreversible qubit-photon coupling for the detection of itinerant microwave photons
![]() |
189 | July 2. 2018 (Monday) 3:00 PM | Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus | Dr. Peter Winter (Argonne National Laboratory) |
High Precision Magnetic Field Measurement for the Muon g-2 Experiment
![]() |
188 | July 21 - August 2 | E6-2,# 5318 | Junmou Chen/Thomas Flacke/Kaoru Hagiwara/Junichi Kanzaki/Chris Kelso/Jeong Han Kim/Kyoungchul Kong/Gabriel Lee/Hye-Sung Lee/Ian Lewis |
Challenges and Opportunities in Theoretical Particle Physics 2019
![]() |
187 | July 21, 2022 (Thu) 4:00 PM(KST) | CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus | Prof. Jihn E. Kim (Kyoung Hee University) |
Quintessential axions
![]() |
186 | July 25(Thur.),4:00PM | E6-2, #1323 | Prof.Bohm-Jung Yang |
Band topology of twisted bilayer graphene
![]() |
185 | July 26, 2018 at 14:00 | Room 5318, KAIST Natural Sciences Lecture Hall(E6). | Manki Kim (Department of Physics, Cornell University) |
Inflation in String Theory and Backreaction
![]() |
184 | July 27, 2018 at 15:00 | Room 5318, KAIST Natural Sciences Lecture Hall(E6). | Dr. Hyejung Kim(Technische University Dresden) |
Muon g-2 in the 2HDM and MSSM: comprehensive numerical analysis and absolute maxima
![]() |
183 | July 30 (Tue), 4:00 PM | #1323, E6-2 | Dr. Mingu Kang |
Dirac fermions and flat bands in correlated kagome metals
![]() |
182 | July 31(Wed.)/ 16:00 | E6-2, #1323 | Dr. Ivan Borzenets |
Features of ballistic superconducting graphene
![]() |
181 | July 8(Mon), 14:00 | E6, #1322 | T. L. M. Guedes (Univ. of Konstanz) |
Ultrabroadband squeezed pulses and their relation to relativity
![]() |