visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-10-07 16:00 
일시 Oct. 07 (Fri), 4:00 PM 
장소 E6-2. #1323(1st fl.) 
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)

번호 날짜 장소 제목
283 2024-05-08 16:30  E6-2 #2502  [High Energy Theory Seminar] Black Holes from Heavy Operators in N=4 SYM
282 2022-10-26 10:00  E6-2 #2502  Replica Higher-Order Topology of Hofstadter Butterflies in Twisted Bilayer Graphene
281 2024-03-20 16:00  E6-2 #2502  [High-Energy Theory Seminar] Black hole states at finite N
280 2024-05-01 16:00  E6-2 #2502  [High Energy Theory Seminar] Across the Mass Spectrum: Utilizing Small-Scale Structures to Probe Dark Matters
279 2022-08-08 14:00  E6-2 #2502  Classical Shadow Tomography for Analog Quantum Simulators
278 2024-05-16 14:30  E6-2 #2502 & Zoom  [Astrophysics Seminar] Observational Cosmology with Superconducting Sensors
277 2020-11-12 16:00  E6-2 1323  2020 가을학기 광학분야 특별세미나
276 2022-01-17 14:00  E6-2 Room 2502  Five Lectures on Observational Probes of Dark Energy file
275 2016-09-02 16:00  E6-2(1st fl) #1323  Quantum Electrical Transport in Topological Insulator Nanowires
274 2016-09-02 14:30  E6-2(1st fl.), #1323  Nanoscale Thermal Physics: Seebeck Effect and Nanoscale Friction
273 2023-11-23 16:00  E6-2(Natural Science B/D). 1st fl. #1323  Deciphering the Enigma of Quantum Materials by X-ray Scattering and Spectroscopy
272 2023-11-16 16:00  E6-2(Natural Science B/D). 1st fl. #1323  Electric-field control of emergent phenomena in correlated oxide thin films
271 2023-11-09 16:00  E6-2(Natural Science B/D). 1st fl. #1323  Assessing the Capability of Near-Term Photonic Devices Towards Quantum Supremacy
270 2023-09-18 11:00  E6-2, #1322  Magic polarisation trapping of polar molecules for tunable dipolar interactions file
269 2023-03-02 11:00  E6-2, #1322  Probing Anomalies of Non-Invertible Symmetries with Symmetry TFTs
268 2023-11-30 10:30  E6-2, #1322  [High-Energy Theory Seminar] 3d-3d correspondence and 2d N = (0,2) boundary conditions
267 2023-08-23 16:00  E6-2, #1322  [High Energy Theory Seminar] A spacetime tensor network for AdS3/CFT2
266 2019-06-28 14:00  E6-2, #1322  1st Research-exchange meeting of computational material physics file
265 2024-05-16 16:00  E6-2, #1323  [High Energy Theory Seminar] Conformal Collider Physics
264 2022-09-15 13:00  E6-2, #1323  AdS black holes: a review