visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나

Aperiodic crystals in low dimensions

2016.05.10 18:55

Physics 조회 수:7128

날짜 2016-05-13 13:30 
일시 May 13 (Fri.), 1:30 PM 
장소 E6. #1501(1st fl.) 
연사 Dr. Young-Woo Son, Dept. of Physics, KIAS 

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 장소 제목
385 2016-12-09 16:00  #1323(E6-2. 1st fl.  Shift Charge and Spin Photocurrents in Dirac Surface States of Topological Insulator
384 2022-05-13 14:30  Zoom webinar  Topological Superconducting Spintronics Towards Zero-Power Computing Technologies file
383 2021-07-29 14:00  Online seminar  Gravitationally Induced Dark Sector and Inflationary Dynamics file
382 2015-12-11 13:30  E6-2, #1323  Quantum spin liquid in the 1/3 depleted triangular lattice Ba3(Ru1-xIrx)Ti2O9
381 2016-03-11 13:30  E6-2. 1st fl. #1501  Topological phases of matter in nonequilibrium: Topology of the Wannier-Stark ladder
380 2018-11-01 16:00  #1323, E6-2  Direct holography from a single snapshot file
379 2022-08-18 10:00  E6-1 #1323  Disorder-driven phase transition in the second-order non-Hermitian skin effect
378 2023-04-27 11:00  E6-2 #1322  Inverse Shapiro steps and coherent quantum phase slip in superconducting nanowires
377 2015-07-16 16:00  E6-2, 1318  Next-generation ultrafast laser technology for nonlinear optics and strong-field physics
376 2018-10-26 16:00  #1323, E6-2  Coexisting triple-point and nodal-line topological magnons and thermal Hall effect in pyrochlore iridates file
375 2017-03-24 14:30  #1323 (1st fl. E6-2).  Topological Dynamics
374 2015-10-15 10:00  E6-2, 5th fl. #5318  Development of Large-Bore, High Field Magnets at the NHMFL
373 2023-06-22 16:00  CAPP Seminar Room C303, Creation Hall, KAIST Munji Campus  [CAPP Seminar] The muon g-2 puzzle file
372 2016-05-19 15:00  May 19, 2016 (Thur.) 3PM,  The CERN Resonant WISP Search: Development, Results and Lesson-Learned
371 2016-07-08 11:00  #1323(E6-2. 1st fl.)  Isostatic magnetism
370 2015-11-23 13:30  E6-2, #1323  What's Beyond the Standard Model? Lessons from Run I and what might come in Run II
369 2017-02-01 14:00  #1323(E6-2. 1st fl.)  Quantum electron optics using flying electrons
368 2019-09-10 15:00  E6-2. 1st fl. #1323  Two-Stage Kondo Effect file
367 2017-11-03 14:30  #1323 (1st fl., E6-2.)  Quantum Resistor-Capacitor Circuit with Majorana Edge States file
366 2019-07-30 16:00  #1323, E6-2  Dirac fermions and flat bands in correlated kagome metals file