Abstract
We have successfully fabricated YBCO Josephson junctions and SQUIDs with variable thickness bridges. The variable-thickness bridges of YBCO thin film were fabricated by photolithography and Focused ion beam mill. The Josephson effects of variable thickness bridges were obtained in a 80 nm-thick-film of high- Tc YBa2Cu3Oy The Shapiro steps were observed in single junction in the gigahertz range from 3.02 to 14.64 GHz. The voltage-current and voltage-field characteristics were measured in SQUID magnetometer. The SQUID shows a peak-to-peak voltage swing of 1.5 μV at 70 K. The properties of one junction and SQUID magnetometer have been investigated.
| Original language | English |
|---|---|
| Article number | 5699961 |
| Pages (from-to) | 375-378 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 21 |
| Issue number | 3 PART 1 |
| DOIs | |
| Publication status | Published - 2011 Jun 1 |
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Keywords
- Focused ion beam
- Josephson junction
- Variable thickness bridges
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Fabrication and properties of high- Tc YBCO josephson junction and SQUID with variable thickness bridges by focused ion beam. / Wu, Chiu Hsien; Jhan, Fong Jyun; Chen, Jau Han; Jeng, Jen Tzong; Chen, Kuen Lin; Yang, Hong Chang.
In: IEEE Transactions on Applied Superconductivity, Vol. 21, No. 3 PART 1, 5699961, 01.06.2011, p. 375-378.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fabrication and properties of high- Tc YBCO josephson junction and SQUID with variable thickness bridges by focused ion beam
AU - Wu, Chiu Hsien
AU - Jhan, Fong Jyun
AU - Chen, Jau Han
AU - Jeng, Jen Tzong
AU - Chen, Kuen Lin
AU - Yang, Hong Chang
PY - 2011/6/1
Y1 - 2011/6/1
N2 - We have successfully fabricated YBCO Josephson junctions and SQUIDs with variable thickness bridges. The variable-thickness bridges of YBCO thin film were fabricated by photolithography and Focused ion beam mill. The Josephson effects of variable thickness bridges were obtained in a 80 nm-thick-film of high- Tc YBa2Cu3Oy The Shapiro steps were observed in single junction in the gigahertz range from 3.02 to 14.64 GHz. The voltage-current and voltage-field characteristics were measured in SQUID magnetometer. The SQUID shows a peak-to-peak voltage swing of 1.5 μV at 70 K. The properties of one junction and SQUID magnetometer have been investigated.
AB - We have successfully fabricated YBCO Josephson junctions and SQUIDs with variable thickness bridges. The variable-thickness bridges of YBCO thin film were fabricated by photolithography and Focused ion beam mill. The Josephson effects of variable thickness bridges were obtained in a 80 nm-thick-film of high- Tc YBa2Cu3Oy The Shapiro steps were observed in single junction in the gigahertz range from 3.02 to 14.64 GHz. The voltage-current and voltage-field characteristics were measured in SQUID magnetometer. The SQUID shows a peak-to-peak voltage swing of 1.5 μV at 70 K. The properties of one junction and SQUID magnetometer have been investigated.
KW - Focused ion beam
KW - Josephson junction
KW - Variable thickness bridges
UR - http://www.scopus.com/inward/record.url?scp=79957955942&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79957955942&partnerID=8YFLogxK
U2 - 10.1109/TASC.2010.2100352
DO - 10.1109/TASC.2010.2100352
M3 - Article
AN - SCOPUS:79957955942
VL - 21
SP - 375
EP - 378
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 3 PART 1
M1 - 5699961
ER -