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)
152 2018-03-16 16:00    Van der Waals Heterostructures from Quantum Transport to Ultrafast Optoelectronics file
151 2018-03-16 14:30    산화물 다층박막에서의 다양한 물리현상 file
150 2018-02-12 15:00    The recent result of XMASS Experiment
149 2017-12-15 09:20    Workshop on Magnetism in Unconventional Superconductors 개최 file
148 2017-12-14 15:00    Exploring the Universe via GWs in the era of multi-messenger astronomy
147 2017-12-13 13:30    KAIST-KIAS Joint Workshop in Theoretical Sciences 개최 file
146 2017-11-28 16:00    Physics after the lab and the desk: Your work in PRL file
145 2017-11-08 13:00    “Emergent exotic quasiparticles in quantum spin liquids” file
144 2017-11-03 16:00    Expedition to the Kitaev Quantum Spin Liquid: Hunting for Majorana fermions file
143 2017-11-03 14:30    Quantum Resistor-Capacitor Circuit with Majorana Edge States file
142 2017-10-10 16:00    Discovery of New 2D Materials with Diverse Physical Properties
141 2017-09-26 11:00    Time-resolved ARPES study of Dirac and topological materials
140 2017-09-22 16:00    Unexpected Electron-Pairing in Integer Quantum Hall Effect file
139 2017-09-22 14:30    Quantum Electronic Transport in Graphene Hybrid Nanostructures file
138 2017-09-22 13:00    Superconductor-metal-insulator transition in thin Tantalum films file
137 2017-09-13 16:00    An Introduction to Quantum Spin Liquids file
136 2017-09-12 16:00    Exact Solution for the Interacting Kitaev Chain at Symmetric Point file
135 2017-08-31 14:00    “Berry phase and nonlinear response: photocurrent in noncentrosymmetric insulators and Weyl semimetals” file
134 2017-08-16 16:00    Phonon-driven spin-Floquet valleytro-magnetism file
133 2017-07-14 15:00    Chiral anomaly in disordered Weyl semimetals file