Ji Wang
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Ji Wang has a total of 10 co-authors. Here are the top co-authors by number of shared publications:
- Hao Li
Mechanical Engineering, University of California Riverside, Riverside, California United States 92521
3 shared publications - Ethan Y. Cho
Department of Electrical and Computer Engineering, University of California, Riverside, Riverside, CA, USA
2 shared publications - Jay LeFebvre
Department of Electrical and Computer Engineering, University of California Riverside , Riverside, California 92521
2 shared publications - Shane A. Cybart
Department of Electrical and Computer Engineering, University of California Riverside , Riverside, California 92521
2 shared publications - G. Wen1 shared publication
- Kevin Pratt
Tristan Technologies, Inc., 6191 Cornerstone Court East, Suite 107, San Diego, California 92121, USA
1 shared publication
Latest Publications
- Open Access
- 19 August 2026
- Published by Elsevier in Physica C: Superconductivity and its Applications
- Vol. 649
The impact of parameter spreads of Josephson junctions on the performance of quantum-based voltage standards
- 19 August 2026
- Published by Elsevier in Physica C: Superconductivity and its Applications
- Vol. 649
Open AccessThe impact of parameter spreads of Josephson junctions on the performance of quantum-based voltage standards
- 10 April 2020
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Applied Superconductivity
- Vol. 30 (7) , 1-3
Portable Solid Nitrogen Cooling System for High Transition Temperature Superconductive Electronics
In this work we present a miniature solid nitrogen cooling system designed for high-transition temperature (high-Tc) superconductor Josephson devices operating in the temperature range of 40 K to 55 K. The system utilizes a small fiberglass Dewar and an external pump to solidify nitrogen in thermal contact with a circuit board insert. Our cooling tests of two different Dewars with 100 mL and 200 mL capacity, reveal that the systems can hold at their lowest base temperature of 42 K for 1.2 hours and 45 K for 4.7 hours for the 100 mL and 200 mL Dewars respectively. This can provide a low power, low weight cooling solution for ultra-portable superconductive electronics and other cryogenic sensors.
- 10 April 2020
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Applied Superconductivity
- Vol. 30 (7) , 1-3
Portable Solid Nitrogen Cooling System for High Transition Temperature Superconductive Electronics
In this work we present a miniature solid nitrogen cooling system designed for high-transition temperature (high-Tc) superconductor Josephson devices operating in the temperature range of 40 K to 55 K. The system utilizes a small fiberglass Dewar and an external pump to solidify nitrogen in thermal contact with a circuit board insert. Our cooling tests of two different Dewars with 100 mL and 200 mL capacity, reveal that the systems can hold at their lowest base temperature of 42 K for 1.2 hours and 45 K for 4.7 hours for the 100 mL and 200 mL Dewars respectively. This can provide a low power, low weight cooling solution for ultra-portable superconductive electronics and other cryogenic sensors.
- 12 March 2019
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Applied Superconductivity
- Vol. 29 (5) , 1-4
Measurement of Magnetic Nanoparticles Using High Transition Temperature Superconducting Quantum Interference Devices
Superconducting quantum interference device (SQUID) based sensors hold promise for magnetic detection of magnetically tagged biological cells. In this work, a high transition temperature (high- $T_C$ ) direct-coupled SQUID micro-magnetometer was fabricated from a 30-nm thick $\rm YBa_{2} Cu_{3}O_{7-\delta}$ (YBCO) thin film. The SQUID was directly written with irradiation from a finely focused helium ion beam without milling or etching any material. An experiment estimating the sensitivity of the magnetometer to magnetic nanoparticles was conducted that revealed the magnetic moment calculated based on the measurement of the SQUID magnetometer is consistent to that obtained from susceptibility measurements.- 12 March 2019
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Applied Superconductivity
- Vol. 29 (5) , 1-4
Measurement of Magnetic Nanoparticles Using High Transition Temperature Superconducting Quantum Interference Devices
Superconducting quantum interference device (SQUID) based sensors hold promise for magnetic detection of magnetically tagged biological cells. In this work, a high transition temperature (high- $T_C$ ) direct-coupled SQUID micro-magnetometer was fabricated from a 30-nm thick $\rm YBa_{2} Cu_{3}O_{7-\delta}$ (YBCO) thin film. The SQUID was directly written with irradiation from a finely focused helium ion beam without milling or etching any material. An experiment estimating the sensitivity of the magnetometer to magnetic nanoparticles was conducted that revealed the magnetic moment calculated based on the measurement of the SQUID magnetometer is consistent to that obtained from susceptibility measurements.