Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data
2016.01.19 10:29
장소 | E6-2, #1323 |
---|---|
일시 | 2016/1/26, 2PM |
연사 | Dr. Sergei V. Kalinin (Center for Nanophase Materials Sciences, Oak Ridge National Laboratory) |
Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data
Jan. 26 (Tue), 2PM, E6-2. #1323
Dr. Sergei V. Kalinin, Center for Nanophase Materials Sciences, Oak Ridge National Laboratory
Structural and electronic properties of oxide surfaces control their physical functionalities and electrocatalytic activity, and are currently of interest for energy generation and storage applications. In this presentation, I will discuss several examples of high-resolution studies of the electronic and electrochemical properties of oxide surfaces enabled by multidimensional scanning probe microscopies. On the mesoscopic scale, combination of strain- and current sensitive scanning probe microscopies allows to build nanometer-scale maps of local reversible and irreversible electrochemical activities. The use of multivariate statistical methods allows separating the complex multidimensional data sets into statistically significant components which in certain cases can be mapped onto individual physical mechanisms. I will further discuss the use of in-situ Pulsed Laser Deposition growth combined with atomic resolution Scanning Tunneling Microscopy and Spectroscopy to explore surface structures and electrochemical reactivity of oxides on the atomic scale. For SrRuO3, we directly observe multiple surface reconstructions and link these to the metal-insulator transitions as ascertained by UPS methods. On LaxCa1-xMnO3, we demonstrate strong termination dependence of electronic properties and presence of disordered oxygen ad-atoms. The growth dynamics and surface terminations of these films are discussed, along with single-atom electrochemistry experiments performed by STM. Finally, I explore the opportunities for atomically-resolved imaging and property data mining of functional oxides extending beyond classical order parameter descriptions, and giving rise to the deep data analysis in materials research.
This research is supported by the by the U.S. Department of Energy, Basic Energy Sciences, Materials Sciences and Engineering Division, and was conducted at the Center for Nanophase Materials Sciences, which is sponsored at Oak Ridge National Laboratory by the Scientific User Facilities Division, BES DOE.
Contact: Chan-Ho Yang, Physics Dept., (chyang@kaist.ac.kr)
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
공지 | 2019/09/18 - 12/5 | Seminar Room #1323 | Prof. David Schuster and etc. | Fall 2019: Physics Seminar Serises |
공지 | 2019/09/02 - 12/09 | Seminar Room 1501 | 이호성 박사 (한국표준과학연구원) and etc. | Fall 2019: Physics Colloquium |
324 | Sep. 24(Thu), 09:00~, Sep. 24(Thu), 16:00 ~ | Zoom Video | Akash V. Dixit (University of Chicago), Dr. Boris Ivanov (Novosibirsk State Technical University) |
(CAPP/IBS)Searching for Dark Matter with a Superconducting Qubit , Cryogenic Microwave Circuit Development at the NSTU
![]() |
323 | Jan.28(Thu), 06:00PM | Online Seminar | Alexandre Zagoskin(Loughborough Univ.) |
Quantum metamaterials: concept, theory, prototypes and possible applications
![]() |
322 | 2015/12/09, 11AM | E4(KI Building), Connect room (2nd fl.) | Arjun G. Yodh (University of Pennsylvania) | Functional Imaging & Monitoring of Brain & Breast with Diffuse Light |
321 | 2015/12/09, 2PM | E6-2, #1323 | Arjun G. Yodh (University of Pennsylvania) | SWELLABLE COLLOIDAL PARTICLES ARE SWELL |
320 | Sep.28. 5:30 pm | Zoom webinar | Burkard Hillebrands (TU Kaiserslautern, Germany) |
KAIST Global Forum for Spin and Beyond(Fourth Forum)
![]() |
319 | Apr. 19(Mon) 19:00 | Zoom webinar | Chia-Ling Chien (Johns Hopkins, USA) |
Evidence of Electrical Switching in Antiferromagnets and Coherent Spin Pumping
![]() |
318 | Thursday, December 14, 2017 at 3:00 pm | Seminar Room (C303), Creation Hall (3F), KAIST Munji Campus | Chunglee Kim (KASI) | Exploring the Universe via GWs in the era of multi-messenger astronomy |
317 | Oct. 25 (Fri), 15:00 ~ | #1323, E6-2 | Daesu Lee,Junwoo Son,MyungJoon Han ,Siheon Ryee,Eun-Gook Moon |
Physics Seminar
![]() |
316 | Dec. 12th (Mon) | 1:30p.m. #1323(E6-2. 1st fl.) | Dongjoon Song , AIST | “Possible symmetry in the phase diagrams of electron- & hole-doped cuprate high-Tc superconductors” |
315 | April 6, 2016 (Wed), 3:30 PM | E6-2, RM #1323 | Dr. Andrei Matlashov (Los Alamos National Laboratory) | Superconducting Quantum Interference Devices for Precision Detection |
314 | Apr. 5 (Tue.), 4PM | E6-2. 1st fl. #1322 | Dr. Ara Go, Columbia University | A new impurity solver for multi-orbital systems: adaptive truncation of the Hilbert space |
313 | 2016/1/11, 4PM | E6-2, #1323 | Dr. B.J.Kim (Max Planck Institute for Solid State Research) | Mott Physics in the Strong Spin-Orbit Coupling Regime |
312 | Nov. 11th (Fri), 4 p.m. | #1323(E6-2. 1st fl.) | Dr. Bohm-Jung Yang, SNU | Dirac fermions in condensed matters |
311 | Jun 28, 14:00 | E6-2, #1322 | Dr. Bongjae Kim, Dr. Sooran Kim, Dr. Jeongwoon Hwang |
1st Research-exchange meeting of computational material physics
![]() |
310 | May 11 (Wed.), 4 PM | E6-2. #1323(1st fl.) | Dr. Bumjoon Kim, Max Planck Institute for Solid State Research | The quest for novel high-temperature superconductors---Prospects and progress in iridates |
309 | Feb. 12 (Mon), 3:00pm | #C303, (Creation Hall 3F, KAIST Munji Campus) | Dr. Byeongsu Yang, Kamioka Observatory, Univ. of Tokyo | The recent result of XMASS Experiment |
308 | JAN. 7 (Mon), 03:00 PM | E6-2. 2st fl. #2501 | Dr. Byoung min Kang |
Many-Body Invariants for Multipoles in Higher-Order Topological Insulators
![]() |
307 | Oct. 18 (Tue.), 1:30 PM | 1st fl. #1323(E6-2) | Dr. Chan-Ho Yang, Department of Physics, KAIST | "Visualization of oxygen vacancy in motion and the interplay with electronic conduction" |