visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2023-11-16 16:00 
일시 Nov. 16(Thu), 4pm 
장소 E6-2(Natural Science B/D). 1st fl. #1323 
연사 Dr. Hyeon Han (Max Planck Institute of Microstructure Physics) 
한현 박사의 세미나를 아래와 같이 안내드립니다.
구성원 여러분의 많은 참여 부탁드립니다. 
 

Title: Electric-field control of emergent phenomena in correlated oxide thin films

Speaker: Dr. Hyeon Han (Max Planck Institute of Microstructure Physics)
Date: Nov. 16(Thu), 4pm

Place : E6-2(Natural Science B/D). 1st fl. #1323

 

[Zoom 회의 참가]

주제: 한현 박사 세미나
 
회의 ID: 849 5297 1197
 
 
Abstract:  

Transition metal oxides (TMOs) have shown intriguing physical phenomena as their structures and physical properties are strongly intertwined. Electric-field control has emerged as a novel way to tailor the lattice symmetry and associated physical phenomena of the correlated TMOs [1-3]. Here, I will present the first realization of epitaxial growth of T-Nb2O5 thin films, critically with vertical ionic transport channels [4]. This novel thin film form allows for a fast and colossal insulator-metal transition along with multiple hidden phase transitions, owing to the population of electrons in the initially empty Nb 4d level, via Li-ionic gating. This film further enables tunable and low voltage operation in ionic gating by chemical potential control between the gate electrode and T-Nb2O5 channel. In addition, by revealing time- and space-resolved electrokinetics during ionic gating, I will demonstrate a new concept of synchronized local ionic gating that allows local manipulation of electrical, magnetic, and optical properties in numerous nanostructures simultaneously [5]. This concept enables the creation and control of all-oxide metamaterials, such as active metasurfaces in addition to artificial spin ices by collective interactions between nanostructures. Finally, I will present strongly correlated SrRuO3 thin films whose structure and physical properties can be extensively modified by external stimuli. In particular, the reversal of anomalous Hall effect coupled with octahedral tilting will be presented by the hydrogenation of SrRuO3 thin films [6]. These studies pave a new way for electrically controlling lattice symmetry and emergent phenomena of TMOs and for their diverse potential applications.

 
번호 날짜 장소 제목
553 2017-08-16 16:00  #1322 (E6-2. 1st fl.)  Phonon-driven spin-Floquet valleytro-magnetism file
552 2017-03-24 16:00  #1323 (1st fl. E6-2)  Graphene based nano electronics and nano electromechanics; focusing on precise control of nano structures for studying accurate physical properties
551 2017-03-24 14:30  #1323 (1st fl. E6-2).  Topological Dynamics
550 2017-11-03 14:30  #1323 (1st fl., E6-2.)  Quantum Resistor-Capacitor Circuit with Majorana Edge States file
549 2017-11-03 16:00  #1323 (1st fl., E6-2.)  Expedition to the Kitaev Quantum Spin Liquid: Hunting for Majorana fermions file
548 2016-06-14 15:00  #1323 (E6-2 1st fl.)  No-Insulation High Temperature Superconductor Magnet Technology for Compact, Reliable, and Low-Cost High Field DC Magnets
547 2019-10-29 10:00  #1323 (E6-2, 1st fl.)  Unconventional Spin Transport in Quantum Materials file
546 2018-04-13 10:00  #1323 (E6-2, 1st fl.)  Quantum meets Mechanics: from Quantum Information to Fundamental Research file
545 2018-04-11 16:00  #1323 (E6-2, 1st fl.)  Non-Gaussian states of multimode light generated via hybrid quantum information processing file
544 2019-10-16 16:00  #1323 (E6-2, 1st fl.)  Emergent black holes and monopoles from quantum fields file
543 2019-10-31 10:00  #1323 (E6-2, 1st fl.)  Kondo meets Hubbard: Impurity physics for correlated lattices file
542 2019-10-29 16:00  #1323 (E6-2, 1st fl.)  Particles and Gravity via String Geometry file
541 2018-04-11 13:30  #1323 (E6-2, 1st fl.)  Probing 3D Structure and Physical Properties of Materials at the Single-Atom Level file
540 2017-09-13 16:00  #1323 (E6-2. 1st fl.)  An Introduction to Quantum Spin Liquids file
539 2017-04-28 16:00  #1323 (E6-2. 1st fl.)  Carbon nanotubes coupled to superconducting impedance matching circuits
538 2017-07-14 15:00  #1323 (E6-2. 1st fl.)  Chiral anomaly in disordered Weyl semimetals file
537 2017-06-02 16:00  #1323 (E6-2. 1st fl.)  Maxwell's demon in quantum wonderland file
536 2017-09-26 11:00  #1323 (E6-2. 1st fl.)  Time-resolved ARPES study of Dirac and topological materials
535 2017-09-12 16:00  #1323 (E6-2. 1st fl.)  Exact Solution for the Interacting Kitaev Chain at Symmetric Point file
534 2017-11-28 16:00  #1323 (E6-2. 1st fl.)  Physics after the lab and the desk: Your work in PRL file