Zobrazeno 1 - 10
of 249
pro vyhledávání: '"G.J. Gerritsma"'
Publikováno v:
Physica C, Mar 2004(1-2), 103-111. Elsevier
As the niobium (Nb) LTS RSFQ processes advance being the technology for future ultrahigh-speed systems in the digital domain, the quality of the process should be maintained high for a successful realization of these complex circuits. A defect-orient
Publikováno v:
IEEE transactions on applied superconductivity. 13(2):95-98
Niobium (Nb) LTS processes are emerging as the technology for future ultra high-speed systems especially in the digital domain. As the number of Josephson Junctions (JJ) per chip has recently increased to around 90000, the quality of the process has
Publikováno v:
IEEE transactions on applied superconductivity, 11(1), 200-204. IEEE
We have successfully fabricated and tested a high temperature superconducting sigma-delta A/D converter, The quantizer is a balanced comparator that has been characterized separately in two temperature regimes. The circuits have been fabricated with
Publikováno v:
Physica C, 326-32(326-327), 12-15. Elsevier
One of the basic elements of RSFQ circuits is the balanced comparator. We have fabricated and tested a balanced comparator in a three HTS layer technology. The junctions and inductances are located on a buried ground plane in order to reduce the indu
Autor:
J. Chen, L. Amatuni, A.H. Sonnenberg, Tsutomu Yamashita, Horst Rogalla, H. Myoren, G.J. Gerritsma
Publikováno v:
IEEE transactions on applied superconductivity, 9(2), 3854-3857. IEEE
We have successfully fabricated ramp-type junctions on MgO substrates using an SrTiO/sub 3/ (STO) buffer layer. The observed I/sub c/R/sub n/ product for the junctions on MgO with STO buffer layer were about 2 mV at 4.2 K and 0.1 mV at 60 K. The junc
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:1665-1668
SrTiO/sub 3/ (STO) thin films have been sputtered on MgO [100] and on Si [100] substrates. On MgO the [100]-oriented STO buffer layers enabled the fabrication of high quality DyBa/sub 2/Cu/sub 3/O/sub 7-x/ (DBCO) films and ramp-type junctions (with I
Publikováno v:
IEEE transactions on applied superconductivity, 9(2), 3644-3647. IEEE
Injection of quasiparticles with an energy larger than the superconducting gap into a superconducting strip results in breaking of Cooper-pairs and hence the suppression of the superconducting properties. Experiments using planar injection devices ma
Publikováno v:
IEEE transactions on applied superconductivity, 9(2), 3133-3136. IEEE
We report on the characterization at high frequencies of DyBa/sub 2/Cu/sub 3/O/sub 7-x/ thin film ramp-type junctions with a PrBa/sub 2/Cu/sub 3/O/sub 7-x/ barrier fabricated on MgO substrates using a thin SrTiO/sub 3/ buffer layer. Josephson emissio
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:2987-2992
Using ramp-type Josephson junctions a 4-bit periodic threshold ADC has been designed, fabricated and tested. Practical design constraints will be discussed in terms of noise immunity, flux flow, available technology, switching speed etc. In a period
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 5:2361-2364
In order to prepare planar junctions, multilayers were sputtered, using YBa/sub 2/Cu/sub 3/O/sub 7-/spl delta// as superconductor and PrBa/sub 2/Cu/sub 3/O/sub 7/(-/spl delta/) as barrier material. The sandwiches are a-axis oriented. Out of these, si