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
559 2018-09-07 15:00  학술문화관 (E9), 2층 양승택 오디토리움  Recent developments in density functional theory: From new functionals to the nature of the chemical bond file
558 2016-05-17 11:00  창의학습관(E11), 406호  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
557 2022-05-13 16:00  자연과학동(E6-2) 1st fl. #1323  High-fidelity iToffoli gate for fixed-frequency superconducting qubits file
556 2021-11-02 16:00  자연과학동(E6-2) #1323  Metrology of Band Topology via Resonant Inelastic X-ray Scattering file
555 2017-12-13 13:30  자연과학동 대형강의실 (1501호)  KAIST-KIAS Joint Workshop in Theoretical Sciences 개최 file
554 2021-05-27 16:00  온라인  찾아가는 물리연구 현장(유럽 입자물리학연구소 소개) file
553 2018-08-01 11:00  양분순 빌딩 (E16-1) 207호  Future of AI: Is the brain a computer? file
552 2022-04-01 16:00  Zoom webinar  High-field Electron Transport and Interaction Induced Phenomena in 2D Materials file
551 2020-09-14 17:30  Zoom webinar  KAIST Global Forum for Spin and Beyond (Third Forum) file
550 2022-05-13 14:30  Zoom webinar  Topological Superconducting Spintronics Towards Zero-Power Computing Technologies file
549 2020-09-22 09:30  Zoom webinar  Physics and applications of soliton microcombs(Quantum- & Nano-Photonics) file
548 2021-06-08 10:00  Zoom webinar  Photonic crystal devices for sensing file
547 2020-08-17 20:00  Zoom webinar  Using magnetic tunnel junctions to compute like the brain file
546 2021-04-19 19:00  Zoom webinar  Evidence of Electrical Switching in Antiferromagnets and Coherent Spin Pumping file
545 2020-08-25 20:00  Zoom webinar  KAIST Global Forum for Spin and Beyond (Second Forum) file
544 2020-09-28 17:30  Zoom webinar  KAIST Global Forum for Spin and Beyond(Fourth Forum) file
543 2021-12-03 16:00  Zoom webinar  Nonequilibrium Heat Transport in Elemental Metals Probed by an Ultrathin Magnetic Thermometer file
542 2021-05-17 17:00  Zoom webinar  Spin current generation and detection in uniaxial antiferromagnets file
541 2021-12-03 14:30  Zoom webinar  Topological Spin Textures: Skyrmions and Beyond file
540 2021-04-09 10:00  Zoom webinar  Integrated Lithium Niobate Photonics file