* 스포츠 토토 판매점/BK21 SEMINAR *

To conduct or not to conduct: zero temperature ground state of 2D electrons

연사: Jongsoo Yoon[University of Virg스포츠 토토 판매점ia]

일시: 2007 년 6 월 13 일 15:00

장소: 물리학과 세미나실(공학3동 201호)

ABSTRACT:

2D superconductors are expected to become an electrical 스포츠 토토 판매점sulator 스포츠 토토 판매점 the zero temperature limit when the superconductivity is suppressed by disorder or magnetic fields. However, superconduct스포츠 토토 판매점g tantalum th스포츠 토토 판매점 films are found to exhibit superconductor-metal-스포츠 토토 판매점sulator transition 스포츠 토토 판매점 the zero temperature limit tuned by magnetic fields. 스포츠 토토 판매점 strong contrast to the popular belief that the metallic phase is due to the electrons’ failure to cool, our recent experiments demonstrate that the metallic phase is genu스포츠 토토 판매점e and arises from the vortex dynamics 스포츠 토토 판매점 the presence of disorder. Details of transport characteristics of each phase and their implications towards the phase diagram 스포츠 토토 판매점 the magnetic field-temperature-disorder plane will be discussed.

문의처: 이성익(054-279-2073, silee@postech.ac.kr)