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Current Fluctuations in a Semiconductor Quantum Dot with Large Energy Spacing
- Authors
- Jeong Heejun
- Issue Date
- Dec-2014
- Publisher
- Institute of Physics Publishing
- Keywords
- NONLINEAR TRANSPORT; SHOT-NOISE; SPIN BLOCKADE
- Citation
- Chinese Physics Letters, v.31, no.12, pp.1 - 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- Chinese Physics Letters
- Volume
- 31
- Number
- 12
- Start Page
- 1
- End Page
- 5
- ISSN
- 0256-307X
- Abstract
- We report on the measurements of the current noise properties of electron tunneling through a split-gate GaAs quantum dot with large energy level spacing and a small number of electrons. Shot noise is full Poissonian or suppressed in the Coulomb-blockaded regime, while it is enhanced to show as super-Poissonian when an excited energy level is involved by finite source-drain bias. The results can be explained by multiple Poissonian processes through multilevel sequential tunneling.
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Related Researcher
- Jeong, Hee jun
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY (DEPARTMENT OF APPLIED PHYSICS)