visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2016-04-12 16:00 
연사  
장소 E6-2. 1st fl. #1323 

Confinement of Superconducting Vortices in Magnetic Force Microscopy

 

Apr. 12 (Tue.), 4 PM, E6-2. 1st fl. #1323
Dr. Jeehoon Kim, POSTECH

 

Magnetic force microscope (MFM) laboratory at CALDES in IBS has constructed a 3He MFM, operating within a vector magnet with the base temperature of 300 mK and magnetic field range of 2-2-9 T in the x-y-z direction.

We demonstrated magnetic imaging capabilities at very low temperature by imaging simultaneously superconducting vortices and magnetic stripes at T= 500 mK in the ferromagnetic superconductor ErNi2B2C which has a ferromagnetic transition below Twfm=2.3 K. The direct visualization of coexistence between superconductivity and magnetism was carried out in ErNi2B2C. The vector field performance of the apparatus was also demonstrated by the creation and imaging of Abrikosov vortices within a superconducting Nb film using a vector field. For example, an in-plane field allows creating a vortex-antivortex pair which is confined through a single flux tube, and thus showing a linear potential in distance. We show an interesting contrast of interaction nature between confined and isolated vortices.​​


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)
434 2018-10-04 16:00    Engineering light absorption in an ultrathin semiconductor metafilm file
433 2018-10-11 16:00    Dirac electrons in a graphene quasicrystal file
432 2018-10-12 14:30    Quantum Advantage in Learning Parity with Noise file
431 2018-10-12 16:00    Direct observation of a two-dimensional hole gas at oxide interfaces file
430 2018-10-15 16:00    Universal properties of macroscopic current-carrying systems file
429 2018-10-16 10:00    Capturing protein cluster dynamics and gene expression output in live cells file
428 2018-10-18 10:00    Understanding membrane protein folding using single-molecule force techniques file
427 2018-10-18 16:00    Applications of nonlinear optics for condensed matter researches file
426 2018-10-19 10:00    Energy conversion processes during magnetic reconnection in a laboratory plasma file
425 2018-10-24 10:30    Photonic integration of next-generation clocks and Hertz-absolute-accuarcy optical frequenncy synthesizers file
424 2018-10-25 16:00    Abelian and non-Abelian dark photons file
423 2018-10-26 16:00    Coexisting triple-point and nodal-line topological magnons and thermal Hall effect in pyrochlore iridates file
422 2018-11-01 16:00    Direct holography from a single snapshot file
421 2018-11-08 16:00    Conformality lost file
420 2018-11-09 14:30    Moiré superlattices – from twisted bilayer graphene to quasicrystal file
419 2018-11-09 16:00    Quantum sensing and imaging with diamond defect centers for nano-scale spin physics file
418 2018-11-21 15:00    Engineering topological quantum physics at the atomic scale file
417 2018-11-22 15:00    Experimental and Computational Study on Physical Properties based on Granular System file
416 2018-11-23 15:00    Entanglement string and Spin Liquid with Holographic duality file
415 2018-11-29 16:00    양자 칸델라 실현을 위한 단일 광자 발생장치 개발 file