Transport properties of high-Tc planar Josephson junctions fabricated by nanolithography and ion implantation

作者: A. S. Katz , S. I. Woods , R. C. Dynes

DOI: 10.1063/1.372286

关键词:

摘要: We have developed a process for fabrication of planar high-Tc Josephson junctions using nanolithography and 200 keV ion implanter. Conduction occurs in the ab plane has no metallurgical interface. Devices may be tuned to operate at temperatures between 1 K Tc undamaged superconducting material by varying length weak link or changing amount damage. examined normal state properties these films find behavior consistent with de Gennes dirty limit proximity effect model. Current–voltage curves, Ic(T) R(T) data suggest temperature dependent superconducting-normal metal interface that we incorporated into

参考文章(28)
A. S. Katz, A. G. Sun, S. I. Woods, R. C. Dynes, Planar thin film YBa2Cu3O7−δ Josephson junctions via nanolithography and ion damage Applied Physics Letters. ,vol. 72, pp. 2032- 2034 ,(1998) , 10.1063/1.121255
J. M. Valles, A. E. White, K. T. Short, R. C. Dynes, J. P. Garno, A. F. J. Levi, M. Anzlowar, K. Baldwin, Ion-beam-induced metal-insulator transition in YBa2Cu3O7- delta : A mobility edge. Physical Review B. ,vol. 39, pp. 11599- 11602 ,(1989) , 10.1103/PHYSREVB.39.11599
L. Antognazza, B. H. Moeckly, T. H. Geballe, K. Char, Properties of high-Tc Josephson junctions with Y0.7Ca0.3Ba2Cu3O7- delta barrier layers. Physical Review B. ,vol. 52, pp. 4559- 4567 ,(1995) , 10.1103/PHYSREVB.52.4559
S. I. Woods, A. S. Katz, M. C. de Andrade, J. Herrmann, M. B. Maple, R. C. Dynes, Destruction of superconductivity in Nd 2 − x Ce x CuO 4 − δ thin films by ion irradiation Physical Review B. ,vol. 58, pp. 8800- 8804 ,(1998) , 10.1103/PHYSREVB.58.8800
G. P. Summers, E. A. Burke, D. B. Chrisey, M. Nastasi, J. R. Tesmer, Effect of particle‐induced displacements on the critical temperature of YBa2Cu3O7−δ Applied Physics Letters. ,vol. 55, pp. 1469- 1471 ,(1989) , 10.1063/1.102287
E. Olsson, K. Char, ORIGIN OF NONUNIFORM PROPERTIES OF YBA2CU3O7-X/CARUO3/YBA2CU3O7-X JOSEPHSON EDGE JUNCTIONS Applied Physics Letters. ,vol. 64, pp. 1292- 1294 ,(1994) , 10.1063/1.110868
John Clarke, S.M. Freake, M.L. Rappaport, T.L. Thorp, A new experimental technique for determining the BCS interaction parameter in normal metals Solid State Communications. ,vol. 11, pp. 689- 693 ,(1972) , 10.1016/0038-1098(72)90488-7