We show theoretically and experimentally that accurate transport measurements are possible even within the short time provided by pulsed magnetic fields. For this purpose, a new method has been devised, which removes the noise component of a specific frequency from the signal by taking a linear combination of the results of numerical phase detection using multiple integer periods. We also established a method to unambiguously determine the phase rotation angle in AC transport measurements using a frequency range of tens of kilohertz. We revealed that the dominant noise in low-frequency transport measurements in pulsed magnetic fields is the electromagnetic induction caused by mechanical vibrations of wire loops in inhomogeneous magnetic fields. These results strongly suggest that accurate transport measurements in short-pulsed magnets are possible when mechanical vibrations are well suppressed.
Beschreibung
Improved accuracy in high-frequency AC transport measurements in pulsed high magnetic fields: Review of Scientific Instruments: Vol 91, No 12
%0 Journal Article
%1 mitamura2020improved
%A Mitamura, Hiroyuki
%A Watanuki, Ryuta
%A Kampert, Erik
%A Förster, Tobias
%A Matsuo, Akira
%A Onimaru, Takahiro
%A Onozaki, Norimichi
%A Amou, Yuta
%A Wakiya, Kazuhei
%A Matsumoto, Keisuke T.
%A Yamamoto, Isao
%A Suzuki, Kazuya
%A Zherlitsyn, Sergei
%A Wosnitza, Joachim
%A Tokunaga, Masashi
%A Kindo, Koichi
%A Sakakibara, Toshiro
%D 2020
%I American Institute of Physics
%J Rev. Sci. Instrum.
%K b
%N 12
%P 125107
%R 10.1063/5.0014986
%T Improved accuracy in high-frequency AC transport measurements in pulsed high magnetic fields
%U https://doi.org/10.1063/5.0014986
%V 91
%X We show theoretically and experimentally that accurate transport measurements are possible even within the short time provided by pulsed magnetic fields. For this purpose, a new method has been devised, which removes the noise component of a specific frequency from the signal by taking a linear combination of the results of numerical phase detection using multiple integer periods. We also established a method to unambiguously determine the phase rotation angle in AC transport measurements using a frequency range of tens of kilohertz. We revealed that the dominant noise in low-frequency transport measurements in pulsed magnetic fields is the electromagnetic induction caused by mechanical vibrations of wire loops in inhomogeneous magnetic fields. These results strongly suggest that accurate transport measurements in short-pulsed magnets are possible when mechanical vibrations are well suppressed.
@article{mitamura2020improved,
abstract = {We show theoretically and experimentally that accurate transport measurements are possible even within the short time provided by pulsed magnetic fields. For this purpose, a new method has been devised, which removes the noise component of a specific frequency from the signal by taking a linear combination of the results of numerical phase detection using multiple integer periods. We also established a method to unambiguously determine the phase rotation angle in AC transport measurements using a frequency range of tens of kilohertz. We revealed that the dominant noise in low-frequency transport measurements in pulsed magnetic fields is the electromagnetic induction caused by mechanical vibrations of wire loops in inhomogeneous magnetic fields. These results strongly suggest that accurate transport measurements in short-pulsed magnets are possible when mechanical vibrations are well suppressed.},
added-at = {2021-10-14T16:36:30.000+0200},
author = {Mitamura, Hiroyuki and Watanuki, Ryuta and Kampert, Erik and Förster, Tobias and Matsuo, Akira and Onimaru, Takahiro and Onozaki, Norimichi and Amou, Yuta and Wakiya, Kazuhei and Matsumoto, Keisuke T. and Yamamoto, Isao and Suzuki, Kazuya and Zherlitsyn, Sergei and Wosnitza, Joachim and Tokunaga, Masashi and Kindo, Koichi and Sakakibara, Toshiro},
biburl = {https://www.bibsonomy.org/bibtex/238b13c650e22b99cecbcfcadea416598/ctqmat},
comment = {doi: 10.1063/5.0014986},
day = 11,
description = {Improved accuracy in high-frequency AC transport measurements in pulsed high magnetic fields: Review of Scientific Instruments: Vol 91, No 12},
doi = {10.1063/5.0014986},
interhash = {e4fca8348460e8f908f0f17796899692},
intrahash = {38b13c650e22b99cecbcfcadea416598},
issn = {00346748},
journal = {Rev. Sci. Instrum.},
keywords = {b},
month = {12},
number = 12,
pages = 125107,
publisher = {American Institute of Physics},
timestamp = {2023-10-16T10:56:48.000+0200},
title = {Improved accuracy in high-frequency AC transport measurements in pulsed high magnetic fields},
url = {https://doi.org/10.1063/5.0014986},
volume = 91,
year = 2020
}