korean english


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: Single-molecule chemistry and spectroscopy on ultrathin insulating films

Speaker: Dr. Yousoo Kim ( RIKEN, Japan )

Date & Time: Nov. 18 (Wed.) 2015, 4:30 PM

Place: Natural Science 1,  Room No. 31214

Abstract: Ultrathin insulating films grown on metal substrate has been a subject of great
interest for investigation of individual adsorbate atoms and molecules using a scanning
tunneling microscope (STM), because of electronic decoupling between the adsorbate
and supporting metal surface under an STM junction. Here, I will talk about two
representative works that we have done about energetics at the single-molecule
interfaces on the ultrathin insulating films.
The chemical reactivity of a water molecule on an
ultrathin MgO film supported by the Ag(100) substrate
depends greatly on film thickness and be enhanced
compared to that achieved with their bulk counterpart [1].
The change of chemical reactivity of ultrathin MgO film
depending on the film thickness can be explained by the
strengthening of the interaction between the oxide and
metal interface layers [2]. Our results clearly show that
such structural imperfections at the interface can improve
the chemical reactivity of the MgO film supported by an
Ag substrate [3].
Optical properties of a single metal-free phthalocyanine (H2Pc) molecule on the
2-ML thick NaCl film supported by Ag(111) have been also studied by scanning
tunneling luminescence spectroscopy. I will discuss about the single molecule reaction
of an H2Pc molecule with tunneling electrons and accompanied optical property
changes in a single-molecule luminescence spectra.
[1]. H.-J. Shin, J. Jung, K. Motobayashi, S. Yanagisawa, Y. Morikawa, Y. Kim, and M.
Kawai, Nat. Mater. 9, 442 (2010).
[2]. J. Jung, H.-J. Shin, Y. Kim, and M. Kawai, Phys. Rev. B 82, 085413 (2010);
[3]. J. Jung, H.-J. Shin, Y. Kim, and M. Kawai, J. Am. Chem. Soc. 133, 6142 (2011); J.
Am. Chem. Soc. 134, 10554 (2012)

번호 제목 날짜 조회 수
공지 <12/8(Thu.) 11:00am>노벨상 소개 강연 - 2016년 노벨 물리학상: 위상 응집 물리의 탄생 2016.11.28 1008845
462 <7월27일>Correlated topological phases in 3D complex oxides via Green's functions 2012.07.27 84734
461 <4/5(Wed.) 11:00am>Adhesion forces between nanoparticles in gas-phase processes and application 2017.04.03 84630
460 <5/29> Study on the electronic interactions in solids under high magnetic fields 2013.05.23 84617
459 <11/11> Revealing magnetism of nanoislands with quantitative insights into spin-polarized scanning tunneling spectroscopy 2013.11.05 84590
458 <10/8(수> Astrophysical probes of Dark Matter, the case of the Milky Way 2014.10.01 84509
457 <June 10(Thu.)>Oxide electronics utilizing spin-orbit coupling 2021.05.31 84495
456 <10/12> Kondo Effect in a Quantum-Dot-Topological-Superconductor Junction: A Numerical Renormalization Group Analysis 2012.10.08 84090
455 <Sep. 30(Wed.) 4:30 PM>Local electronic structures of stacking grain boundary in bilayer graphene 2015.09.23 83986
454 <7/21> Next generation cryogenic free 1.5T MgB2-magnet based MRI 2010.07.20 83929
453 <12/14> Breakup-Fusion and Knockout-Fusion Approach to Pre-Equilibrium Processes 2009.12.11 83768
452 콜로퀴움 강연 일정표 2006.02.21 83615
451 <10/17> The Interface Induced Magnetism 2012.10.11 83596
450 <10/13> 물리학과 저차원 스핀계 연구팀 초청 세미나 2006.10.11 83590
449 <12/21(Fri) 3:00pm ~ > Quasilocal Smarr Relations / Expanding Universe and Dynamical Compactification Using Yang-Mills Instantons 2018.12.17 83518
448 <5/16(Thu.) 14:00 ~ >The Chiral anomaly without Landau levels 2019.05.08 83517
447 <11/7> Two- and three- body problems in classic and quantum mechanics 2012.10.29 83439
446 <3/23> 동서양의 세계관과 풍경화 2011.03.17 83424
445 <9/26(Thu.) 4:30 pm ~ > Neutrino Physics and Dark Matter search in IBS 2019.09.24 83334
444 <11/23> How statistical physics contributes to Internet world: perspectives, methods and applications 2011.11.15 83219
443 <10/8 (월)>물리학과 특별세미나 개최 안내 2012.10.05 83013