### Abstract

Original language | English |
---|---|

Pages (from-to) | L101-L110 |

Number of pages | 10 |

Journal | Fluctuation and Noise Letters |

Volume | 7 |

Issue number | 2 |

DOIs | |

Publication status | Published - 2007 |

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**Conductance noise on a square sample, calculation of the geometrical factor fQ.** / Deursen, van, A.P.J.; Vandamme, L.K.J.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Conductance noise on a square sample, calculation of the geometrical factor fQ

AU - Deursen, van, A.P.J.

AU - Vandamme, L.K.J.

PY - 2007

Y1 - 2007

N2 - Conductance fluctuations are easily probed by passing a constant current through a pair of driver electrodes and measuring the voltage fluctuations across a pair of sensor electrodes. We calculate the geometrical factor for these fluctuations from the current distribution derived by conformal transformations. In four-electrode configurations on a flat square sample this factor depends only slightly on electrode size, whereas a strong dependence is found for two-electrode configurations. The calculations also give accurate values for the resistance, which allows a comparison with the thermal noise.

AB - Conductance fluctuations are easily probed by passing a constant current through a pair of driver electrodes and measuring the voltage fluctuations across a pair of sensor electrodes. We calculate the geometrical factor for these fluctuations from the current distribution derived by conformal transformations. In four-electrode configurations on a flat square sample this factor depends only slightly on electrode size, whereas a strong dependence is found for two-electrode configurations. The calculations also give accurate values for the resistance, which allows a comparison with the thermal noise.

U2 - 10.1142/S0219477507003751

DO - 10.1142/S0219477507003751

M3 - Article

VL - 7

SP - L101-L110

JO - Fluctuation and Noise Letters

JF - Fluctuation and Noise Letters

SN - 0219-4775

IS - 2

ER -