Tunnel diode resonator for precision magnetic susceptibility measurements in a mK temperature range and large DC magnetic fields
Abstract
Precision radio-frequency measurements of the magnetic susceptibility using the tunnel diode resonator (TDR) technique are used to study the delicate effects in magnetic and superconducting materials. High resolution (in ppb range) measurements are particularly important for studies of the London and Campbell penetration depths in a superconductor and for the investigation of magnetic transitions in (anti)ferromagnets. Due to the small rf magnetic-excitation in a mOe range, the TDR is especially useful at low-temperatures in a mK range, if Joule heating generated in the TDR circuitry is efficiently removed and the circuit is stabilized with sub-mK precision. Unfortunately, the circuit has significant magnetic field dependence, and therefore, most of the precision TDR measurements at low-temperatures were conducted in zero magnetic field. In this work, we describe the design of a setup for precision TDR measurements in a dilution refrigerator down to ~40 mK with a 14 T superconducting magnet. The key features of our design are the separated electronics components and the placement of the most field sensitive parts in the field-compensated zone far from the center of solenoid as well as the heat-sinking at a higher temperature stage. As a result, the performance of the working setup is demonstrated usingmore »
- Authors:
-
- Ames Lab. and Iowa State Univ., Ames, IA (United States); Univ. of Maryland, College Park, MD (United States)
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1478992
- Alternate Identifier(s):
- OSTI ID: 1472213
- Report Number(s):
- IS-J-9781
Journal ID: ISSN 0034-6748
- Grant/Contract Number:
- AC02-07CH11358
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Review of Scientific Instruments
- Additional Journal Information:
- Journal Volume: 89; Journal Issue: 9; Journal ID: ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Kim, Hyunsoo, Tanatar, M. A., and Prozorov, R.. Tunnel diode resonator for precision magnetic susceptibility measurements in a mK temperature range and large DC magnetic fields. United States: N. p., 2018.
Web. doi:10.1063/1.5048008.
Kim, Hyunsoo, Tanatar, M. A., & Prozorov, R.. Tunnel diode resonator for precision magnetic susceptibility measurements in a mK temperature range and large DC magnetic fields. United States. https://doi.org/10.1063/1.5048008
Kim, Hyunsoo, Tanatar, M. A., and Prozorov, R.. Mon .
"Tunnel diode resonator for precision magnetic susceptibility measurements in a mK temperature range and large DC magnetic fields". United States. https://doi.org/10.1063/1.5048008. https://www.osti.gov/servlets/purl/1478992.
@article{osti_1478992,
title = {Tunnel diode resonator for precision magnetic susceptibility measurements in a mK temperature range and large DC magnetic fields},
author = {Kim, Hyunsoo and Tanatar, M. A. and Prozorov, R.},
abstractNote = {Precision radio-frequency measurements of the magnetic susceptibility using the tunnel diode resonator (TDR) technique are used to study the delicate effects in magnetic and superconducting materials. High resolution (in ppb range) measurements are particularly important for studies of the London and Campbell penetration depths in a superconductor and for the investigation of magnetic transitions in (anti)ferromagnets. Due to the small rf magnetic-excitation in a mOe range, the TDR is especially useful at low-temperatures in a mK range, if Joule heating generated in the TDR circuitry is efficiently removed and the circuit is stabilized with sub-mK precision. Unfortunately, the circuit has significant magnetic field dependence, and therefore, most of the precision TDR measurements at low-temperatures were conducted in zero magnetic field. In this work, we describe the design of a setup for precision TDR measurements in a dilution refrigerator down to ~40 mK with a 14 T superconducting magnet. The key features of our design are the separated electronics components and the placement of the most field sensitive parts in the field-compensated zone far from the center of solenoid as well as the heat-sinking at a higher temperature stage. As a result, the performance of the working setup is demonstrated using several superconductors.},
doi = {10.1063/1.5048008},
journal = {Review of Scientific Instruments},
number = 9,
volume = 89,
place = {United States},
year = {2018},
month = {9}
}
Web of Science
Figures / Tables:

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Works referencing / citing this record:
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Figures / Tables found in this record: