PHYSICS/BK21 SEMINAR (09/01/14)
관련링크
본문
"“Quantum transport and electro-optical
properties of semiconductor nanowire devices”
Speaker : Research Assistant Prof. Yong-Joo Doh [POSTECH]
Place : Physics Seminar Room (Science Bldg, 3-201)
Date & Time : Jan, 14(Wed) 4:00 ~ 5:00 pm
ABSTRACT:
Chemically grown semiconductor nanowires can provide a promising platform to study various quantum phenomena in low dimensional system. Hugh versatility in composition of nanowires and relatively simple fabrication process make nanowire devices promising for research in the fields of quantum information and computation. In this talk, I will focus on the experimental realization of mesoscopic Josephson field-effect transistor, formed with a nanowire bridging two superconducting electrodes.[1] Here the electronic transport is mainly determined by the coupling strength between the nanowire and electrodes, exhibiting universal conductance fluctuations and Coulomb blockade oscillations.[2] In addition to the quantum interference/confinement effects, the electro-optical properties of the individual nanowires are also explored,[3] as a first step towards the possibility to control the optoelectronic response at the single-quantum level.
Contact Person : Prof. Byung Il Min(054-279-2074, bimin@postech.ac.kr)"
properties of semiconductor nanowire devices”
Speaker : Research Assistant Prof. Yong-Joo Doh [POSTECH]
Place : Physics Seminar Room (Science Bldg, 3-201)
Date & Time : Jan, 14(Wed) 4:00 ~ 5:00 pm
ABSTRACT:
Chemically grown semiconductor nanowires can provide a promising platform to study various quantum phenomena in low dimensional system. Hugh versatility in composition of nanowires and relatively simple fabrication process make nanowire devices promising for research in the fields of quantum information and computation. In this talk, I will focus on the experimental realization of mesoscopic Josephson field-effect transistor, formed with a nanowire bridging two superconducting electrodes.[1] Here the electronic transport is mainly determined by the coupling strength between the nanowire and electrodes, exhibiting universal conductance fluctuations and Coulomb blockade oscillations.[2] In addition to the quantum interference/confinement effects, the electro-optical properties of the individual nanowires are also explored,[3] as a first step towards the possibility to control the optoelectronic response at the single-quantum level.
Contact Person : Prof. Byung Il Min(054-279-2074, bimin@postech.ac.kr)"
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