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Low‐frequency noise in transport through quantum point contacts

✍ Scribed by Li, Yuan P.; Tsui, D. C.; Heremans, J. J.; Simmons, J. A.; Weimann, G. W.


Book ID
111928226
Publisher
American Institute of Physics
Year
1990
Tongue
English
Weight
550 KB
Volume
57
Category
Article
ISSN
0003-6951

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Low-frequency noise of quantum point con
✍ F. Liefrink; A.J. Scholten; C. Dekker; R. Eppenga; H. van Houten; C.T. Foxon 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 263 KB

The low-frequency resistance noise of quantum point contacts is shown to be dominated by fluctuations in the electrostatic potential. Both in the ballistic and in the quantum Hall regime, the noise is strongly suppressed if the conductance is quantized. The suppression is enhanced by a strong magnet