logo

korean english

게시판

Home > 게시판 > 세미나

아래와 같이 콜로퀴움을 개최하오니 많이 참석해 주시기 바랍니다.

4시 20분부터 제1과학관 31214 e+강의실에서 다과를 준비하오니 많은 참석 부탁드립니다.


아 래


Title: Electronic structures of strongly-correlated systems


Speaker: Prof.  Joo Yull Rhee (Department of Physics, SKKU)


Date & Time: Sep. 9 (Wed.) 2015, 4:30 PM 


Place: Natural Science 1,  Room No. 31214


Abstract: If the electrons are spatially localized they acts differently from when they were itinerant. The strong on-site Coulomb interactions among localized electrons lead to the appearance of variety of peculiar properties. In some Ce-based compounds it is commonly believed  that the Kondo interaction might cause some peculiar properties, such as heavy-fermion behavior, quantum criticality (QC), non Fermi-liquid behavior, and so on. In the quantum-critical region, it is not possible to describe the phase transition by using the Landau's theory of order parameter. Recently the orbital anisotropy in heavy-fermion systems is crucial ingredient for QC. In our electronic-structure calculations indeed indicate that the anisotropy of f-orbital in some Ce-based compounds is very important for the appearance of QC. Another interesting area of strongly-correlated systems is a class of multiferroic materials. A typical example of multiferroics is BiFeO3, which exhibit both antiferromagnetic and ferroelectric behaviors. Although the compound is intensively studied owing to its multiferroic behavior, its crystal structure is still unclear. There are several suggestions for the crystal structures. In our calculations indicate that the triclinic structure is the most appropriate structure. In addition, only the triclinic structure results in a semiconducting behavior.

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1079434
250 <April. 27(Wed.) 4:30 PM> 로봇과 함께 살아갈 미래 2016.04.22 54726
249 <April. 6(Wed.) 4:30 PM> Quantitative Determination of High Tc Superconductivity Mechanism 2016.03.31 142488
248 <March. 30(Wed.) 4:30 PM> Tetraneutron (four-neutron nucleus) 2016.03.24 70477
247 <March. 23(Wed.) 4:30 PM> 조선시대의 천문시계 2016.03.17 57234
246 <March. 16(Wed.) 4:30 PM> 초고속반도체의 블랙다이아몬드™,low-k 2016.03.10 73998
245 <March. 9(Wed.) 4:30 PM>가치 있는 대학 생활이란 무엇인가? file 2016.03.07 56218
244 2016학년도 1학기 콜로퀴움 일정 2016.02.03 133749
243 <Dec. 9(Wed.) 4:30 PM>Direct detection of dark matter at Underground 2015.12.03 75553
242 <Dec. 2(Wed.) 4:30 PM> Next-generation solar cells for high photo-conversion efficiency 2015.11.25 102794
241 <Nov. 25(Wed.) 4:30 PM> Present and Future of OLED 2015.11.19 74880
240 <Nov. 18(Wed.) 4:30 PM> Single-molecule chemistry and spectroscopy on ultrathin insulating films 2015.11.11 183052
239 <Nov. 11(Wed.) 4:30 PM> 그래핀 산업의 현황과 전망 2015.11.09 63120
238 <Nov. 4(Wed.) 4:30 PM> 기능성 산화물과 그래핀을 접합한 나노소자의 특성 변화 2015.10.30 60688
237 <Oct. 28(Wed.) 4:30 PM> Anomalous diffusion of single-molecules in living cells: at the interface of biology and statistical physics 2015.10.19 110584
236 <Oct. 14(Wed.) 4:30 PM> 국방과학기술과 물리학 2015.10.07 66277
235 <Oct. 7(Wed.) 4:30 PM> Observing Ultra High Energy Cosmic Rays with your Smartphone 2015.10.02 197587
234 <Sep. 30(Wed.) 4:30 PM>Local electronic structures of stacking grain boundary in bilayer graphene 2015.09.23 93674
233 <Sep. 23(Wed.) 4:30 PM>Grain boundary effect in Metal : A journey of discovery from crystal to thin films without grain boundaries 2015.09.16 209316
232 <Sep. 16(Wed.) 4:30 PM> Watching molecular targets in living bodies: the cutting edge in clinical medicine 2015.09.09 73411
» <Sep. 9(Wed.) 4:30 PM> Electronic structures of strongly-correlated systems 2015.09.03 91213