visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2022-10-28 11:00 
연사  
장소 E6-2 #1323 
세미나 영상은 아래 링크로 확인 바랍니다. (공개기한: 2023.10.27까지)
 
o 일시: 2022. 10. 28(금)  11:00
o 장소: E6-2 Room 1323
o Zoom Link: https://kaist.zoom.us/j/83127228653  회의 ID:  831 2722 8653
 
o 연사: 김수란 교수(경북대학교 물리교육과)
o 강연주제: Machine-Learning-Guided Prediction Models and Materials discovery for high Tc Cuprates
Abstract
Cuprates have been at the center of long debate regarding their superconducting mechanism; therefore, predicting the critical temperatures of cuprates remains elusive. We demonstrate herein, using ab initio computations, a new trend suggesting that the cuprates with stronger out-of-CuO2-plane chemical bonding between the apical anion (O, Cl) and apical cation (e.g., La, Hg, Bi, Tl) are generally correlated with higher Tc;max in experiments. Also, using machine learning, we predict the maximum superconducting transition temperature (Tc,max) of hole-doped cuprates and suggest the functional form for Tc,max with the root-mean-square-error of 3.705 K and R2 of 0.969. We have found that the Bader charge of apical oxygen, the bond strength between apical atoms, and the number of superconducting layers are essential to estimate Tc,max. Furthermore, we predict the Tc,max of hypothetical cuprates generated by replacing apical cations with other elements. Among the hypothetical structures, the cuprates with Ga show the highest predicted Tc,max values, which are 71, 117, and 131 K for one, two, and three CuO2 layers, respectively. These findings suggest that machine learning could guide the design of new high-Tc superconductors in the future.
Attached: C.V
 
Inquiry: Prof. Se Kwon Kim(sekwonkim@kaist.ac.kr) / Prof. Hee Jun Yang (h.yang@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)
285 2023-06-22 16:00    [High Energy Physics Seminar] The Branes Behind Generalized Symmetry Operators
284 2019-01-23 16:00    Ultrasensitive Microwave Bolometer: Opportunity for Axion Detectors file
283 2022-04-13 10:30    Harnessing topology and correlations from singularities in 3d-kagome metals
282 2024-05-08 16:30    [High Energy Theory Seminar] Black Holes from Heavy Operators in N=4 SYM
281 2023-08-23 16:00    [High Energy Theory Seminar] A spacetime tensor network for AdS3/CFT2
280 2023-01-09 16:00    Non-Hermitian Hopf-bundle Matter. Moon Jip Park (IBS-PCS)
279 2025-05-13 16:00  Mr. Heonjoon Park(Univ. Washington, USA)  Fractional Quantum Anomalous Hall Effect file
278 2020-12-11 14:30    Antisymmetric interlayer exchange coupling in magnetic multilayers
277 2024-01-24 15:00    Determination of single molecule loading rate during mechanotransduction file
276 2020-11-26 16:00    2020 가을학기 광학분야 특별세미나(Light Engineering Beyond the Diffraction Limit)
275 2024-04-11 16:00    Theoretical Studies of the Electric Field Induced Thermal Hall Effect in the Quantum Dimer Magnets XCuCl3 (X = Tl, K)
274 2016-10-17 11:00    IMS and examples of the studies on optoelectronic materials
273 2019-08-19 10:00    Tutorials on Multimode Quantum Optics in the Continuous Variable Regime file
272 2022-09-21 10:30    [Update 세미나 영상] Distinguished Lecture 'The Magic of Moiré Quantum Matter' Prof. Pablo Jarillo-Herrero(Department of Physics, MIT) file
271 2022-08-08 14:00    Classical Shadow Tomography for Analog Quantum Simulators
270 2025-04-21 16:00  Prof. Ambrose Sungseok Seo (Univ of Kentucky)  Condensed matter physics? All you gotta do is just meet me at the ... file
269 2020-12-09 10:00    Searching for the QCD axion with the ARIADNE experiment file
268 2019-08-22 16:00    Physics and Applications in Nanoelectronics and Nonomechanics file
267 2024-05-28 11:00    동적평균장 이론 소개
266 2022-03-25 11:00    (응집물리 세미나) Hund's metallicity in ruthenate systems file