# Low-noise and compact detection system using RF MEMS switch for solid-state NMR spectroscopy at cryogenic temperature: Proof-of-concept experiment

https://mdr.nims.go.jp/datasets/bb42e087-c28e-4946-bfc8-40bd4a1450b5

## File

- [AA00817730-96-10-105201-1-8.pdf](https://mdr.nims.go.jp/filesets/ea13c67b-23ab-440a-81f4-c44de76ba96d/download) ([Detail](https://mdr.nims.go.jp/filesets/ea13c67b-23ab-440a-81f4-c44de76ba96d.md))

## Id

bb42e087-c28e-4946-bfc8-40bd4a1450b5

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-01-14T14:50:09.206467Z

## Updated at

2026-01-15T00:32:30.422062Z

## Published at

2026-01-15T03:22:38.363739Z

## Doi

https://doi.org/10.48505/nims.6126

## First published url

https://doi.org/10.1063/5.0284141

## Date published

2025-10-01

## Recorded date published

2025-10-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: 'Low-noise and compact detection system using RF MEMS switch for solid-state
    NMR spectroscopy at cryogenic temperature: Proof-of-concept experiment'
  title_type: original
  lang: en

## Description

- description: In nuclear magnetic resonance (NMR) spectroscopy, the signal from nuclear
    spins is extremely weak, and thus, it has been desired to improve the signal-to-noise
    ratio (SNR). In this study, we designed a compact low-noise probe and peripheral
    detection system optimized for low-temperature solid-state NMR spectroscopy. We
    confirmed the operation of a Tx/Rx switch composed of radio frequency microelectromechanical
    system (RF MEMS) switches and a preamplifier using high electron mobility transistors
    (HEMTs), which can operate even at 20 K and under a high magnetic field of ∼10
    T. In our compactly designed NMR system, we succeeded in sufficiently reducing
    both thermal noise and external noise. As a result, the 195Pt- and 27Al-NMR measurements
    for Pt and Al solid powder samples were performed at 12 T and down to 20 K, showing
    that the SNR was improved by 40%–50% compared with the conventional system. These
    experiments also provide information on the low temperature properties and operational
    characteristics of integrated RF electronic devices, such as the RF MEMS switch,
    the HEMT, and their combined circuit system.
  description_type: abstract
  lang: und

## Creator

- name: Sotaro Nishioka
  role: author
  orcid: https://orcid.org/0000-0002-6728-4293
- name: Naoki Sakuyama
  role: author
- name: Ken Obara
  role: author
  orcid: https://orcid.org/0000-0002-6981-6521
- name: Akiko T. Saito
  role: author
  orcid: https://orcid.org/0000-0001-5920-5965
- name: Mitsuharu Yashima
  role: author
- name: Hidekazu Mukuda
  role: author

## Contact agent



## Publisher

organization: AIP Publishing

## Managing organization



## Keyword

- subject: NMR
  schema: not_defined
- subject: MEMS switch
  schema: not_defined
- subject: Cryogenic amplifier
  schema: not_defined
- subject: HEMT
  schema: not_defined
- subject: Cryogenics
  schema: not_defined

## Rights

- description: 'This article may be downloaded for personal use only. Any other use
    requires prior permission of the author and AIP Publishing. This article appeared
    in Sotaro Nishioka, Naoki Sakuyama, Ken Obara, Akiko T. Saito, Mitsuharu Yashima,
    Hidekazu Mukuda; Low-noise and compact detection system using RF MEMS switch for
    solid-state NMR spectroscopy at cryogenic temperature: Proof-of-concept experiment.
    Rev. Sci. Instrum. 1 October 2025; 96 (10): 105201 and may be found at https://doi.org/10.1063/5.0284141.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Review of Scientific Instruments
  issn: '00346748'
  volume: '96'
  issue: '10'
  article_number: '105201'

## Conference



## Related item



## Funding

- identifier: JP23H00550
  funder_name: Japan Society for the Promotion of Science
- identifier: JP25K00959
  funder_name: Japan Society for the Promotion of Science
- funder_name: Izumi Science and Technology Foundation
- funder_name: Casio Science Promotion Foundation
- funder_name: Takahashi Industrial and Economic Research Foundation
- funder_name: Nippon Sheet Glass Foundation for Materials Science and Engineering
- funder_name: Yamaguchi Scholarship Foundation

## Instrument



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## Measurement method



## Specimen



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## Fileset

- id: ea13c67b-23ab-440a-81f4-c44de76ba96d
  filename: AA00817730-96-10-105201-1-8.pdf
  content_type: application/pdf
  size: 2027140
  md5: b8065be2f44cd7034f410a8e91de6a4c

## Thumbnail

fileset_id: ea13c67b-23ab-440a-81f4-c44de76ba96d
filename: AA00817730-96-10-105201-1-8.pdf