Fast sensitive amplifier for two-probe conductance measurements in single molecule break junctions

Tyler K. Johnson; Jeffrey A. Ivie; Jason Jaruvang; Oliver L.A. Monti

doi:10.1063/1.4978962

Fast sensitive amplifier for two-probe conductance measurements in single molecule break junctions

Tyler K. Johnson
, Jeffrey A. Ivie
, Jason Jaruvang
, Oliver L.A. Monti

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

8 Scopus citations

Abstract

We demonstrate an amplifier based on the Wheatstone bridge designed specifically for use in single molecule break junctions. This amplifier exhibits superior performance due to its large bandwidth, flat frequency response, and high sensitivity. The amplifier is capable of measuring conductance values from 10² to 10⁻⁶G₀ (G₀ = 2e²/h), while maintaining a bandwidth in excess of 20 kHz, and shows remarkable resolution in the molecular conductance regime of 10⁻² to 10⁻⁵ G₀.

Original language	English (US)
Article number	033904
Journal	Review of Scientific Instruments
Volume	88
Issue number	3
DOIs	https://doi.org/10.1063/1.4978962
State	Published - Mar 1 2017

ASJC Scopus subject areas

Instrumentation

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10.1063/1.4978962

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title = "Fast sensitive amplifier for two-probe conductance measurements in single molecule break junctions",

abstract = "We demonstrate an amplifier based on the Wheatstone bridge designed specifically for use in single molecule break junctions. This amplifier exhibits superior performance due to its large bandwidth, flat frequency response, and high sensitivity. The amplifier is capable of measuring conductance values from 102 to 10−6G0 (G0 = 2e2/h), while maintaining a bandwidth in excess of 20 kHz, and shows remarkable resolution in the molecular conductance regime of 10−2 to 10−5 G0.",

author = "Johnson, \{Tyler K.\} and Ivie, \{Jeffrey A.\} and Jason Jaruvang and Monti, \{Oliver L.A.\}",

note = "Funding Information: The authors acknowledge support from the National Science Foundation, Award Nos. CHE-1213243 and CHE-1565497. Generous support from Bill and Patty Ivie is also gratefully acknowledged. The authors would like to thank Dr. Roland Himmelhuber for stimulating discussions. The authors would like to thank Dr. Kevin Bao for stimulating discussions and for constructing the logarithmic amplifier. Publisher Copyright: {\textcopyright} 2017 Author(s).",

year = "2017",

month = mar,

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doi = "10.1063/1.4978962",

language = "English (US)",

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T1 - Fast sensitive amplifier for two-probe conductance measurements in single molecule break junctions

AU - Johnson, Tyler K.

AU - Ivie, Jeffrey A.

AU - Jaruvang, Jason

AU - Monti, Oliver L.A.

N1 - Funding Information: The authors acknowledge support from the National Science Foundation, Award Nos. CHE-1213243 and CHE-1565497. Generous support from Bill and Patty Ivie is also gratefully acknowledged. The authors would like to thank Dr. Roland Himmelhuber for stimulating discussions. The authors would like to thank Dr. Kevin Bao for stimulating discussions and for constructing the logarithmic amplifier. Publisher Copyright: © 2017 Author(s).

PY - 2017/3/1

Y1 - 2017/3/1

N2 - We demonstrate an amplifier based on the Wheatstone bridge designed specifically for use in single molecule break junctions. This amplifier exhibits superior performance due to its large bandwidth, flat frequency response, and high sensitivity. The amplifier is capable of measuring conductance values from 102 to 10−6G0 (G0 = 2e2/h), while maintaining a bandwidth in excess of 20 kHz, and shows remarkable resolution in the molecular conductance regime of 10−2 to 10−5 G0.

AB - We demonstrate an amplifier based on the Wheatstone bridge designed specifically for use in single molecule break junctions. This amplifier exhibits superior performance due to its large bandwidth, flat frequency response, and high sensitivity. The amplifier is capable of measuring conductance values from 102 to 10−6G0 (G0 = 2e2/h), while maintaining a bandwidth in excess of 20 kHz, and shows remarkable resolution in the molecular conductance regime of 10−2 to 10−5 G0.

UR - https://www.scopus.com/pages/publications/85016408650

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DO - 10.1063/1.4978962

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VL - 88

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 3

M1 - 033904

ER -

Fast sensitive amplifier for two-probe conductance measurements in single molecule break junctions

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