# Study on the effect of Bi/Sr ratio on the device characteristics of high-<i>T</i>c superconducting terahertz wave emitters made of Bi2Sr2CaCu2O8+<i>δ</i> single crystals

https://mdr.nims.go.jp/datasets/bb4c4a94-a9e6-489c-9c9f-6b420900a02a

## File

- [JApplPhys135_073902.pdf](https://mdr.nims.go.jp/filesets/856092a6-584e-42cd-a437-6567bb74206e/download) ([Detail](https://mdr.nims.go.jp/filesets/856092a6-584e-42cd-a437-6567bb74206e.md))

## Id

bb4c4a94-a9e6-489c-9c9f-6b420900a02a

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-10-08T06:56:32.018042Z

## Updated at

2024-10-09T23:31:04.850551Z

## Published at

2024-10-09T23:31:04.906072Z

## Doi



## First published url

https://doi.org/10.1063/5.0188077

## Date published

2024-02-21

## Recorded date published

2024-2-21

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Study on the effect of Bi/Sr ratio on the device characteristics of high-<i>T</i>c
    superconducting terahertz wave emitters made of Bi2Sr2CaCu2O8+<i>δ</i> single
    crystals
  title_type: original
  lang: en

## Description

- description: To obtain high-performance THz-wave-emitting devices made of single
    crystals of Bi2Sr2CaCu2O8þδ (Bi2212), a high-temperature super- conductor, an
    understanding of the device characteristics based on crystal characteristics can
    be a key issue because, in principle, the electri- cal properties of the intrinsic
    Josephson junctions (IJJs) constructed in Bi2212 crystals highly depend on crystal
    conditions, such as carrier concentration, crystal homogeneities, and crystal
    defects. To evaluate the tendencies of the device characteristics associated with
    crystal char- acteristics, we prepared Bi2212 crystals with different Bi/Sr ratios
    (x 1⁄4 0:05, 0.15, and 0.25) and δ values (annealed under N2 or O2 gas flow conditions).
    The unit cell parameter c decreased as the Bi/Sr ratio or δ increased. For the
    same annealing conditions under N2 gas flow, the superconducting transition temperature
    as well as the size of the hysteresis loop of the current–voltage characteristics
    and emission charac- teristics were significantly suppressed for the sample with
    x 1⁄4 0:25 compared with the corresponding values for the samples with x 1⁄4 0:05
    and 0.15. The experimental results clearly indicate that parameters, such as the
    Bi/Sr ratio and annealing conditions, are crucial factors in determining the electrical
    characteristics of a device. This information can be a useful guide for the preparation
    of crystals for IJJ THz-wave devices that can be fine-tuned according to the desired
    device characteristics.
  description_type: abstract
  lang: und

## Creator

- name: M. Nakayama
  role: author
- name: S. Nakagawa
  role: author
  orcid: https://orcid.org/0000-0003-4539-6953
- name: T. Yamaguchi
  role: author
- name: H. Minami
  role: author
- name: K. Kadowaki
  role: author
  orcid: https://orcid.org/0000-0001-9391-1150
- name: H. Nakao
  role: author
  orcid: https://orcid.org/0000-0003-4020-537X
- name: T. Mochiku
  role: author
  orcid: https://orcid.org/0000-0003-2208-4279
- name: M. Tsujimoto
  role: author
  orcid: https://orcid.org/0000-0003-4296-5137
- name: S. Ishida
  role: author
  orcid: https://orcid.org/0000-0001-9445-8079
- name: H. Eisaki
  role: author
  orcid: https://orcid.org/0000-0002-8299-6416
- name: T. Kashiwagi
  role: author
  orcid: https://orcid.org/0000-0002-4839-9247

## Contact agent



## Publisher

organization: AIP Publishing

## Managing organization



## Keyword

- subject: high-Tc superconductor
  schema: not_defined
- subject: intrinsic Josephson junction
  schema: not_defined
- subject: terahertz wave emitter
  schema: not_defined
- subject: Bi2Sr2CaCu2O8
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of Applied Physics
  issn: '00218979'
  volume: '135'
  issue: '7'

## Conference



## Related item



## Funding

- identifier: 17K05018
  funder_name: Japan Society for the Promotion of Science
- identifier: 20H02590
  funder_name: Japan Society for the Promotion of Science
- identifier: 23H01819
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 856092a6-584e-42cd-a437-6567bb74206e
  filename: JApplPhys135_073902.pdf
  content_type: application/pdf
  size: 2244537
  md5: 00137ac1562964cb9b00369bc929a241

## Thumbnail

fileset_id: 856092a6-584e-42cd-a437-6567bb74206e
filename: JApplPhys135_073902.pdf