论文信息 - Electric field effect of SrTiO/sub 3//YBa/sub 2/Cu/sub 3/O/sub 7-x/ multilayers grown by all-MBE

Electric field effect of SrTiO/sub 3//YBa/sub 2/Cu/sub 3/O/sub 7-x/ multilayers grown by all-MBE

Epitaxial SrTiO/sub 3//YBa/sub 2/Cu/sub 3/O/sub 7-x/ (STO/YBCO) multilayers for a superconducting field-effect transistor (SuFET) were fabricated by an ozone assisted Molecular Beam Epitaxy (MBE) method. To eliminate interdiffusion at the interface, we deposited high quality STO films at around 500/spl deg/C on YBCO films with clean surfaces. At this temperature, interdiffusion was negligible through in-situ Auger Electron Spectroscopy (AES). The electric field effect in a Ag/STO/YBCO device configuration also indicated the suppression of the interfacial layer between the STO and YBCO film.<<ETX>>

T. Nakamura | M. Iiyama | H. Tokuda

[1] H. Rogalla,et al. Electric-field effect devices made of YBa2Cu3O7-x/SrTiO3 epitaxial multilayers , 1994 .

[2] C. Doughty,et al. Voltage‐current characteristics of a high Tc superconducting field effect device , 1992 .

[3] T. Hirano,et al. Metal-Insulator-Superconductor Field-Effect-Transistor Using SrTiO3/YBa2Cu3Oy Heteroepitaxial Films , 1992 .

[4] T. Hirano,et al. Epitaxial SrTiO3 Thin Films Grown by ArF Excimer Laser Deposition , 1992 .

[5] Qi Li,et al. Dielectric properties of SrTiO3 thin films used in high Tc superconducting field‐effect devices , 1992 .

[6] Takao Nakamura,et al. Low‐energy ion scattering spectroscopy observations of c‐axis‐oriented YBa2Cu3O7−x thin films: Effects of in‐vacuum annealing , 1991 .

[7] C. Doughty,et al. Electric field effect in high Tc superconducting ultrathin YBa2Cu3O7−x films , 1991 .

[8] K. Müller,et al. Electric field effect on superconducting YBa2Cu3O7−δ films , 1991 .

[9] Takao Nakamura,et al. Electric Field Effect in SrTiO3/YBa2Cu3O7-x Multilayers Grown by All-MBE , 1994 .

[10] Takao Nakamura,et al. In-Situ Surface Observation of C-Axis Oriented YBa 2 Cu 3 O 7−x Thin Films by Leed, XPS and ISS , 1992 .