visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-10-07 16:00 
연사  
장소 E6-2. #1323(1st fl.) 

“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 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
225 2016-11-29 16:00    Symmetry Protected Kondo Metals and Their Phase Transitions
224 2022-10-26 10:00    Replica Higher-Order Topology of Hofstadter Butterflies in Twisted Bilayer Graphene
223 2016-10-07 13:30    “Symmetry and topology in transition metal dichalcogenide?”
222 2022-11-24 16:00    Probing fundamental physics by mapping the mm and sub-mm sky
221 2023-09-18 16:00    [CAPP Seminar] Searching for axions in quantum vacuum birefringence file
220 2019-04-26 16:00    Robust Quantum Metrology using Strongly Interacting Spin Ensembles and Quantum Convolutional Neural Network file
219 2021-12-03 14:30    Topological Spin Textures: Skyrmions and Beyond file
218 2019-11-05 16:00    Study on nanomaterials by the development of ultrahigh resolution laser-photoelectron microscopy (PEEM) file
217 2019-11-20 16:00    Correlation between superconducting transition temperature and critical current density in irradiated iron-based superconductors file
216 2020-02-13 16:30    Enhanced Light-Matter Interactions in Graphene with Noble Metal Plasmonic Structures file
215 2022-06-10 14:30    Combinatorial strategy for condensed matter physics: study on rare earth hexaborides thin films file
214 2019-10-31 10:00    Kondo meets Hubbard: Impurity physics for correlated lattices file
213 2018-04-09 11:00    Doublon-holon origin of the subpeaks at the Hubbard band edges file
212 2019-10-29 16:00    Particles and Gravity via String Geometry file
211 2018-06-01 11:00    Topological phases in low-dimensional quantum materials file
210 2019-03-29 14:30    Epitaxial Multifunctional Oxide Thin Films for Novel Electronics file
209 2016-01-26 14:00    Electrochemistry on Nano- and Atomic Levels: Scanning Probe Microscopy Meets Deep Data
208 2023-09-21 16:00    [CAPP seminar] Axion Magnetic Resonance file
207 2023-10-11 16:00    [High Energy Theory Seminar] Axion Magnetic Resonance
206 2019-04-19 16:00    Graphene and hBN heterostructures file