Performance of high-Tc superconducting quantum interference devices with resistively shunted inductances

作者: D. J. Kang , W. E. Booij , M. G. Blamire , E. J. Tarte

DOI: 10.1063/1.122939

关键词:

摘要: The voltage modulation depths, ΔV of high-Tc direct current superconducting quantum interference devices (SQUIDs) with resistors connected in parallel their inductances were investigated. Both the junctions and SQUIDs fabricated using focused electron-beam irradiation. effect varying resistor value (using ion-beam trimming) screening parameter βL (by temperature hence junction critical current) studied. Significant enhancement relative to an equivalent unshunted SQUID for values up 50 was observed, most effective shunt found be approximately equal resistance.

参考文章(11)
K. Enpuku, K. Sueoka, K. Yoshida, F. Irie, Effect of damping resistance on voltage versus flux relation of a dc SQUID with large inductance and critical current Journal of Applied Physics. ,vol. 57, pp. 1691- 1697 ,(1985) , 10.1063/1.334439
A. J. Pauza, W. E. Booij, K. Herrmann, D. F. Moore, M. G. Blamire, D. A. Rudman, L. R. Vale, Electron-beam damaged high-temperature superconductor Josephson junctions Journal of Applied Physics. ,vol. 82, pp. 5612- 5632 ,(1997) , 10.1063/1.366422
K. Enpuku, K. Yoshida, S. Kohjiro, Noise characteristics of a dc SQUID with a resistively shunted inductance. II. Optimum damping Journal of Applied Physics. ,vol. 60, pp. 4218- 4223 ,(1986) , 10.1063/1.337510
Keiji Enpuku, Hideki Doi, Voltage versus Flux Relation of DC Superconducting Quantum Interference Device Using Three Josephson Junctions Japanese Journal of Applied Physics. ,vol. 33, pp. 1856- 1862 ,(1994) , 10.1143/JJAP.33.1856
D.F. Moore, A.J. Pauza, W.E. Booij, M.G. Blamire, K. Herrmann, F. Baudenbacher, T. Harnisch, J.F. Walker, N. Cade, D. Jedamzik, Asymmetric YBaCuO interferometers and SQUIDs made with focused electron-beam irradiation junctions IEEE Transactions on Applied Superconductivity. ,vol. 7, pp. 2494- 2497 ,(1997) , 10.1109/77.621745
K. Enpuku, G. Tokita, T. Maruo, Inductance dependence of noise properties of a high‐Tc dc superconducting quantum interference device Journal of Applied Physics. ,vol. 76, pp. 8180- 8185 ,(1994) , 10.1063/1.357870
Keiji Enpuku, Y Shimomura, T Kisu, None, Effect of thermal noise on the characteristics of a high Tc superconducting quantum interference device Journal of Applied Physics. ,vol. 73, pp. 7929- 7934 ,(1993) , 10.1063/1.353946
M.N. Keene, J.S. Satchell, S.W. Goodyear, R.G. Humphreys, J.A. Edwards, N.G. Chew, K. Lander, Low noise HTS gradiometers and magnetometers constructed from YBa/sub 2/Cu/sub 3/O/sub 7-x//PrBa/sub 2/Cu/sub 3/O/sub 7-y/ thin films IEEE Transactions on Applied Superconductivity. ,vol. 5, pp. 2923- 2926 ,(1995) , 10.1109/77.403204
Satoshi Kohjiro, Keiji Enpuku, Keiji Yoshida, Kaoru Yamafuji, Experimental Study of Noise Characteristics of Large-β dc SQUID with Resistively Shunted Inductance Japanese Journal of Applied Physics. ,vol. 27, pp. 1871- 1874 ,(1988) , 10.1143/JJAP.27.1871
W. E. Booij, A. J. Pauza, E. J. Tarte, D. F. Moore, M. G. Blamire, Proximity coupling in high-T{sub c} Josephson junctions produced by focused electron beam irradiation Physical Review B. ,vol. 55, pp. 14600- 14609 ,(1997) , 10.1103/PHYSREVB.55.14600