“Tilt engineering of 4d and 5d transition metal oxides?”
2016.10.06 18:55
장소 | E6-2. #1323(1st fl.) |
---|---|
일시 | Oct. 07 (Fri), 4:00 PM |
연사 | Dr. Choong Hyun Kim,IBS-CCES, Seoul National University |
“Tilt engineering of 4d and 5d transition metal oxides?”
Oct. 07 (Fri), 4:00 PM, E6-2. #1323(1st fl.)
Dr. Choong Hyun Kim,IBS-CCES, Seoul National University
Functional octahedral tilting has become a novel concept in multifunctional perovskite oxides, showing great potential for property manipulation and device design. Strong coupling between spins, orbitals and lattices in transition metal oxides are responsible for these features. Fundamental understanding of such phenomena requires detailed microscopic information on each physical degree of freedom for different physical qualities of spin, orbital, and lattice. In this presentation, we discuss spin-orbital-lattice cross-coupling phenomena in layered 4d ruthenates and 5d iridates. At first, single-layer ruthenates, Sr_{2-x}Ca_{x}RuO4 have interesting phase diagram including unconventional superconductor, metal-insulator transition, spin and orbital ordering. And these are strongly coupled to octahedral tilting distortion. Here we report interesting experimental observations including THz pump-probe optical spectroscopy and ARPES. Secondly, we will focus on control of magnetism in single-and bi-layer iridates via structural distortion. Due to its exotic nature of magnetism in iridates, they are strongly coupled to structural distortion and we can control and even induce spin flop or magnetization reversal phenomena in this series of compounds.
Contact: MyungJoon Han, Physics Dept., (mj.han@kaist.ac.kr)
댓글 0
번호 | 일시 | 장소 | 연사 | 제목 |
---|---|---|---|---|
146 | August. 6th (TUE), 14:00 | E6 Room(#1323) | Kanghyun Chu |
Visualization of in-plane piezoresponse vector fields
![]() |
145 | August. 1st (Thu), 14:00 | E6 Room(#1323) | Hyeok Yoon |
Low-density Superconductivity in SrTiO3 Probed by Planar Tunneling Spectroscopy
![]() |
144 | August. 16th (Fri), 14:00 | E6 Room(#1323) | Jinxing Zhang |
Multiferroic and Magnetoelectric Effects by Tailoring Interfacial Chemistry and Physics in Correlated Oxides
![]() |
143 | August. 14th (Wed.), 4:00PM, | Rm. 1323, E6 | Prof. Nicolas Treps |
Quantum Optics, at the heart of quantum metrology and quantum information
![]() |
142 | August 27 (Tue.), 4:00PM | Rm. 1323, E6 | Hiroshi Eisaki |
Critical current properties of Fe-based superconductors
![]() |
141 | August 1, 2018 at 11:00AM | 양분순 빌딩 (E16-1) 207호 | 이대열 교수, 예일대 석좌교수 |
Future of AI: Is the brain a computer?
![]() |
140 | Aug. 4, 2016 (Thu.), 2:30 pm | KAIST Natural Science Building (E6-5), EDU 3.0 Room(1st fl.) | Prof. Argyris Nicolaidis | Relational Logic (with applications to Quantum Mechanics, String Theory, Cosmology, Neutrino Oscillations, Statistical Mechanics) |
139 | AUG. 31 (Thu.), 2 PM | #5318(E6-2. 5th fl.) | Prof. Hiroaki Ishizuka (The University of Tokyo) |
“Berry phase and nonlinear response: photocurrent in noncentrosymmetric insulators and Weyl semimetals”
![]() |
138 | Aug. 17(Mon), 20:00~ | Zoom webinar | Mark D. Stiles (NIST, USA) |
Using magnetic tunnel junctions to compute like the brain
![]() |
137 | Aug. 16 (Wed.), 4 PM | #1322 (E6-2. 1st fl.) | Prof. Noejung Park (UNIST) |
Phonon-driven spin-Floquet valleytro-magnetism
![]() |
136 | Aug, 25(Tue), 20:00~ | Zoom webinar | Mark D. Stiles (NIST, USA) |
KAIST Global Forum for Spin and Beyond (Second Forum)
![]() |
135 | April 6, 2017 (Thu), 4:00 pm | IBS CAPP seminar room, Creation Hall (3F), KAIST Munji Campus | Prof. Youngjoon Kwon (Yonsei University) | For whom the Belle tolls |
134 | 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 |
133 | April 6 (Fri.), 10:00 AM | #2502, E6 | 박채연 박사 |
Entanglement and thermalization in many-body systems: recent progress
![]() |
132 | April 5th 2017, 12:00 ~ 13:00 | Room 101, Creative Learning Bldg.(E11) | Prof. Wonho Choe(Dept. of Physics),Prof. Young-chul GHIM(Dept. of Nuclear & Quantum Engineering) |
2017년 4월 첫수 융합포럼 개최 안내(물리학과 & 원자력 및 양자공학과 공동 개최)/The First Wednesday Multidisciplinary Forum in April 2017 organized by Dept. of Physics & Dept. of Nuclear & Quantum Engineering
![]() |
131 | April 4, 2016 (Mon) - April 8, 2016 (Fri) | KAIST Natural Science Building (E6-2), RM #4314 | Dr. Fritz Caspers (CERN) | Radio frequency engineering |
130 | April 4 (Thu.), 16:00 PM | #1323, E6-2 | Prof. Su-Hyun Gong |
Chiral spin-photon interaction at nanoscale
![]() |
129 | April 26 (Tue), 4PM | #1323(1st Floor. E6-2) | Dr. Myung-Ho Bae, Korea Research Institute of Standards and Science | Transport spectroscopy for electronic bands in carbon-based nanomaterials with weak-bond contacts |
128 | April 26 (Fri.), 4:00 PM | #1323, E6-2 | Dr. Soonwon Choi |
Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network
![]() |
127 | April 23 (Tue.), 4:00 PM | #1323, E6-2 | Prof. Johan Chang |
From Mott physics to high-temperature superconductivity
![]() |