logo

korean english

게시판

Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다. 4시부터 2층 라운지세미나실에 다과를 준비하오니 많은 참석 부탁드립니다 아 래 1. 제 목: Graphitic Carbon Nanostructures: From Analogy of Relativistic Quantum Mechanics to Carbon Based Electronics 2. 연 사: 김 필 립 교수 (콜롬비아대학교) 3. 일 시: 2008년 10월 17일(금) 오후4:30 4. 장 소: 물리학과세미나실(31355호실) 5. 초 록: Graphitic Carbon Nanostructures: From Analogy of Relativistic Quantum Mechanics to Carbon Based Electronics Carbon based graphitic nanomaterials have been provided us opportunities to explore fundamental transport phenomena in low-energy condensed matter systems to reveal interesting analogy to the relativistic quantum mechanics. They have also provided the potential device applications based on the exotic charge transport phenomena in low-dimensional structures. The unique electronic band structure of graphene lattice yields a linear energy dispersion relation where the Fermi velocity replaces the role of the speed of light in usual Dirac Fermion spectrum. In this presentation we will discuss experimental consequence of charged Dirac Fermion spectrum in two representative low dimensional graphitic carbon systems: 1-dimensional carbon nanotubes and 2-dimensional graphene. Combined with semiconductor device fabrication techniques and the development of new methods of nanoscaled material synthesis/manipulation enables us to investigate mesoscopic transport phenomena in these materials. The exotic quantum transport behavior discovered in these materials, such as ballistic charge transport and unusual half-integer quantum Hall effect both of which appear even at room temperature. In addition, I will discuss electronic transport measurements in patterned locally gated graphene nanoconstrictions with tunable transmission and bipolar heterojunctions. We observe various unusual transport phenomena, such as energy gap formation in confined graphene structures which promise novel electronic device applications based on graphitic carbon nanostructures. 다운을 받으시려면 아래의 링크를 클릭해주세요. http://physics.skku.ac.kr/ppt/1017.ppt
번호 제목 날짜 조회 수
공지 2022학년도 1학기 콜로퀴움 일정 2022.01.10 27214
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 969951
180 <5/9> Nonequilibrium Critical Phenomena: Fractals and Self-Organized Criticality 2008.05.06 83221
179 2015학년도 1학기 콜로퀴움 일정 file 2015.02.27 83228
178 <4/3> Spin-orbit coupling induced Mott insulating state 2009.03.13 83231
177 <11/27> 중성자로 보는 작은 세상 속 큰 물리 2009.11.24 83339
176 <7/15> Experiment for Discoveries of Extrasolar Planets 2009.07.13 83379
175 <11/28> Extremal Black Holes and Holographic C-theorem 2012.11.28 83439
174 <11/14> Resonance collective mode in novel superconductors 2008.11.11 83459
173 <5/23> 나노구조 산화물 재료의 기능성-용매화전자에서 전자화합물까지... 2012.05.17 83532
172 <10/5> Acoustic Metamaterials and Reversal of Sound 2011.09.26 83533
171 <6/12> Latest Results from the IceCube Neutrino Observatory 2013.06.07 83569
170 <7/17> Atomic-scale polar oxide heterostructures: Growth and interfacial properties 2009.07.13 83654
169 <11/20> Particle Accelerators: Driving Forces for Energy 2009.11.16 83716
168 <7/3> Complex networks and the graph structure of metabolism 2008.06.26 83758
167 <4/3>Enhanced emission rate from a single quantum well using surface plasmon 2009.03.31 83781
166 <12/30> Dirac vs. Weyl in topological insulators: Adler-Bell-Jackiw anomaly in transport phenomena 2013.12.16 84138
165 <5/8>Recent trend of thin film battery 2009.05.06 84257
164 <9/19> Novel mechanical degree of freedom at nanoscales 2012.09.13 84316
163 <3/16> Inelastic X-ray Scattering: past, present, and the future 2011.03.10 84346
162 <4/16>같은 곳을 바라보는 다른 시선 2010.04.09 84596
161 <6/18> A consistent truncation of D=11 supergravity to D=4, N=2 supergravity using wrapped M5-branes 2010.06.10 84779