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Low Frequency Admittance of a Quantum Point Contact

✍ Scribed by Büttiker, M.; Christen, T.

Book ID
111657131
Publisher
The American Physical Society
Year
1996
Tongue
English
Weight
147 KB
Volume
77
Category
Article
ISSN
0031-9007

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Low-frequency noise of quantum point con
Low-frequency noise of quantum point contacts in the ballistic and quantum Hall regime
✍ 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