NICT 超伝導プロジェクト

◆　2002年度　研究論文

研究成果<<

Y. Yu, S. Han, S.-I Chu, Z. Wang, “Coherent temporal oscillations of macroscopic quantum states in a Josephson junction” , Science,Vol.296 , No.5569, pp.889-892, 2002
A. Saito, A. Kawakami, H. Shimakage, Z. Wang, “As-grown MgB₂ thin films deposited on Al2O3 substrates with different crystal planes”, Supercond. Sci. Technol.,Vol.15,No.9, pp.1325-1329, 2002
Y. Uzawa, A. Kawakami, A. Saito, M. Takeda, Z. Wang, “A submillimeter-wave SIS mixer using NbN/MgO/NbN trilayers grown epitaxially on an MgO substrate”, Supercond. Sci. Technol.,Vol.15 No.12 pp.1760-1765, 2002
K. Hamasaki, H. Ishida, A. Kawakami, A. Saito, Z. Wang, “Influence of thermal cycling on TLFs observed in epitaxial NbN/MgO/NbN tunnel junctions”, Physica C, Vol.372-376, No.1, pp.18-21, 2002
H. Terai, A. Kawakami, Z. Wang, “Sub-micron NbN/AlN/NbN tunnel junction with high critical current density”, Physica C, Vol.372-376, No.1, pp.38-41, 2002
A. Kawakami, S. Miki, Z. Wang, “Fabrication of epitaxial-NbN Josephson array oscillators to operate over Nb-gap frequency”, Physica C, Vol.372-376, No.1, pp.339-342, 2002
A. Kawakami, S. Miki , Z. Wang , “Surface resistance of epitaxial NbN thin films in the frequency renge of 0.7-1.1 THz”, Physica C, Vol.372-376, No.2, pp.1295-1300, 2002
H. Shimakage, Z. Wang, R. H. Ono, L. R. Vale, “Fabrication of interface-engineered Josephson junctions on sapphire substrates”, Physica C, Vol.372-376, No.2, pp.1348-1352, 2002
S. Yorozu, Y. Kameda, H. Terai, A. Fujimaki, T. Yamada, S. Tahara, “A single flux quantum standard logic cell library”, Physica C, Vol.372-376, No.2, pp.1471-1474, 2002
Y. Uzawa, M. Takeda, Z. Wang, “A circuit for tuning superconductor-insulator-superconductor mixers using distributed tunnel junctions”, Jpn. J. Appl. Phys.,Vol.42, pp. 91-95, 2003
A. Saito, A. Kawakami, H. Shimakage, H. Terai, Z. Wang, “Josephson tunneling properties in MgB₂/AlN/NbN tunnel junctions”, J. Appl. Phys., Vol.92, No.12, pp.7369-7372, 2003
H. Terai, H. Nakatsuka, Z. Wang , “Recent progress in NbN integrated circuit technology”, Sing. J. Phys.,Vol.18, No.1, pp.29-34, 2002
T. Uchiyama, I. Iguchi, Z. Wang, “Preparation of sandwich-type junctions made of different high-Tc superconductors , Bi₂Sr₂Ca₂O_8+y and YBa₂Cu₃O_7-x", Sing. J. Phys.,Vol.18, No.1, pp.245-249, 2002