Fast sweep-rate plastic Faraday force magnetometer with simultaneous sample temperature measurement

D. Slobinsky; R. A. Borzi; A. P. Mackenzie; S. A. Grigera

doi:10.1063/1.4769049

Fast sweep-rate plastic Faraday force magnetometer with simultaneous sample temperature measurement

D. Slobinsky^*, R. A. Borzi, A. P. Mackenzie, S. A. Grigera

^*Corresponding author for this work

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

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Abstract

We present a design for a magnetometer capable of operating at temperatures down to 50 mK and magnetic fields up to 15 T with integrated sample temperature measurement. Our design is based on the concept of a Faraday force magnetometer with a load-sensing variable capacitor. A plastic body allows for fast sweep rates and sample temperature measurement, and the possibility of regulating the initial capacitance simplifies the initial bridge balancing. Under moderate gradient fields of similar to 1 T/m our prototype performed with a resolution better than 1 x 10(-5) emu. The magnetometer can be operated either in a dc mode, or in an oscillatory mode which allows the determination of the magnetic susceptibility. We present measurements on Dy2Ti2O7 and Sr3Ru2O7 as an example of its performance.

Original language	English
Article number	125104
Number of pages	5
Journal	Review of Scientific Instruments
Volume	83
Issue number	12
DOIs	https://doi.org/10.1063/1.4769049
Publication status	Published - Dec 2012

Keywords

Magnetic fields
Capacitance
Faraday effect
Magnetic field instruments
Temperature measurement

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10.1063/1.4769049

RevSciInstrum83
© 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Review of Scientific Instruments, Vol 83, Issue 12, and may be found at: http://scitation.aip.org/content/aip/journal/rsi/83/12/10.1063/1.4769049
Final published version, 852 KB

Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems
Wahl, P. (PI), Baumberger, F. (CoI), Davis, J. C. (CoI), Green, A. (CoI), Hooley, C. (CoI), Keeling, J. M. J. (CoI) & Mackenzie, A. (CoI)
EPSRC
1/09/11 → 31/08/17
Project: Standard
Wolfson Research Merit Award (WRMA): Royal Society Wolfson Research Merit Award
Mackenzie, A. (PI)
The Royal Society
1/04/11 → 31/10/13
Project: Standard

Cite this

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title = "Fast sweep-rate plastic Faraday force magnetometer with simultaneous sample temperature measurement",

abstract = "We present a design for a magnetometer capable of operating at temperatures down to 50 mK and magnetic fields up to 15 T with integrated sample temperature measurement. Our design is based on the concept of a Faraday force magnetometer with a load-sensing variable capacitor. A plastic body allows for fast sweep rates and sample temperature measurement, and the possibility of regulating the initial capacitance simplifies the initial bridge balancing. Under moderate gradient fields of similar to 1 T/m our prototype performed with a resolution better than 1 x 10(-5) emu. The magnetometer can be operated either in a dc mode, or in an oscillatory mode which allows the determination of the magnetic susceptibility. We present measurements on Dy2Ti2O7 and Sr3Ru2O7 as an example of its performance.",

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AU - Grigera, S. A.

PY - 2012/12

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N2 - We present a design for a magnetometer capable of operating at temperatures down to 50 mK and magnetic fields up to 15 T with integrated sample temperature measurement. Our design is based on the concept of a Faraday force magnetometer with a load-sensing variable capacitor. A plastic body allows for fast sweep rates and sample temperature measurement, and the possibility of regulating the initial capacitance simplifies the initial bridge balancing. Under moderate gradient fields of similar to 1 T/m our prototype performed with a resolution better than 1 x 10(-5) emu. The magnetometer can be operated either in a dc mode, or in an oscillatory mode which allows the determination of the magnetic susceptibility. We present measurements on Dy2Ti2O7 and Sr3Ru2O7 as an example of its performance.

AB - We present a design for a magnetometer capable of operating at temperatures down to 50 mK and magnetic fields up to 15 T with integrated sample temperature measurement. Our design is based on the concept of a Faraday force magnetometer with a load-sensing variable capacitor. A plastic body allows for fast sweep rates and sample temperature measurement, and the possibility of regulating the initial capacitance simplifies the initial bridge balancing. Under moderate gradient fields of similar to 1 T/m our prototype performed with a resolution better than 1 x 10(-5) emu. The magnetometer can be operated either in a dc mode, or in an oscillatory mode which allows the determination of the magnetic susceptibility. We present measurements on Dy2Ti2O7 and Sr3Ru2O7 as an example of its performance.

KW - Magnetic fields

KW - Capacitance

KW - Faraday effect

KW - Magnetic field instruments

KW - Temperature measurement

U2 - 10.1063/1.4769049

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VL - 83

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 12

M1 - 125104

ER -

Fast sweep-rate plastic Faraday force magnetometer with simultaneous sample temperature measurement

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Keywords

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Projects

Topological Protection and NonEquilibriu: Topological Protection and NonEquilibrium States in Strongly Correlated Electron Systems

Wolfson Research Merit Award (WRMA): Royal Society Wolfson Research Merit Award

Cite this