visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

Aperiodic crystals in low dimensions

2016.05.10 18:55

Physics 조회 수:13133

날짜 2016-05-13 13:30 
연사  
장소 E6. #1501(1st fl.) 

Aperiodic crystals in low dimensions

 

May 13 (Fri.), 1:30 PM, E6. #1501(1st fl.)
Dr. Young-Woo Son, Dept. of Physics, KIAS

 

The cylindrical multishell structure is one of the prevalent atomic arrangements in nanowires. Being multishell, the well-defined atomic periodicity is hardly realized in it because the periodic units of individual shells therein generally do not match except for very few cases, posing a challenge to understanding its physical properties. Here we show that moire patterns generated by superimposing atomic lattices of individual shells are decisive in determining its electronic structures. Double-walled carbon nanotubes, as an example, are shown to have spectacular variations in their electronic properties from metallic to semiconducting and further to insulating states depending on their moire patterns, even when they are composed of only semiconducting nanotubes with almost similar energy gaps and diameters. Thus, aperiodic multishell nanowires can be classified into one-dimensional moire crystals with distinct electronic structures.


Contact: Eun Gook Moon, Physics Dept., (egmoon@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)
546 2023-04-28 11:00    Tkachenko wave: From the modern field theory viewpoint
545 2018-10-18 10:00    Understanding membrane protein folding using single-molecule force techniques file
544 2023-07-19 16:00    [High-Energy Theory Seminar]Deriving the Simplest Gauge-String Duality
543 2023-03-02 11:00    Probing Anomalies of Non-Invertible Symmetries with Symmetry TFTs
542 2020-07-02 16:00    An irreversible qubit-photon coupling for the detection of itinerant microwave photons file
541 2015-08-04 11:00    Propagation of ultrasound through two- and three-dimensional strongly scattering media
540 2016-07-07 14:00    Let there be topological superconductors
539 2017-09-22 13:00    Superconductor-metal-insulator transition in thin Tantalum films file
538 2017-06-02 14:30    Quasiparticle Interference and Fourier transform scanning tunneling spectroscopy in WTe2 (Weyl semimetal) file
537 2016-05-24 16:00    Electronic and magnetic properties of 2D transition-metal thiophosphates and tunability of magnetic order with carrier density
536 2023-06-15 16:00    [CAPP Seminar] Cryogenic electronics for ion traps file
535 2023-06-14 16:00    [CAPP seminar] EMC at CERN file
534 2016-04-04 09:30    Radio frequency engineering
533 2016-11-1 10:30    Time scale dependent dynamics in InAs/InP quantum dot gain media
532 2018-10-25 16:00    Abelian and non-Abelian dark photons file
531 2024-08-14 11:00    Pair Density Waves and Supercurrent Diode Effect in Altermagnets
530 2017-09-22 16:00    Unexpected Electron-Pairing in Integer Quantum Hall Effect file
529 2017-09-22 14:30    Quantum Electronic Transport in Graphene Hybrid Nanostructures file
528 2024-05-14 16:00    [High Energy Theory Seminar] Minimal Production of Prompt Gravitational Waves during Reheating.
527 2018-12-07 14:30    Spin generation from heat and light in metals file