Zeeman splitted mesoscopic transport through a normal-metal–quantum-dot–superconductor system

✍ Scribed by Hong-Kang Zhao

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 165 KB
• Volume: 264
• Category: Article
• ISSN: 0375-9601
• DOI: 10.1016/s0375-9601(99)00756-2

✦ Synopsis

We have investigated the transport through a normal-metal-quantum-dot-superconductor NDS system applied by a Zeeman magnetic field on the multi-channel quantum dot. The nonequilibrium Green function technique is used, and the tunneling current is obtained. The tunneling current is affected by the Zeeman field obviously, and resonant tunneling current versus gate voltage, Zeeman energy, and the source-drain bias voltage is discussed. The Zeeman field can cause different resonant structure comparing with the gate voltage, and the I-V curves display new characteristics due to the splitting of Zeeman field. The current caused multiple normal scattering and Andreev reflection is included in the calculations.