Fluorine-implanted bismuth oxide superconductors

Gupta, Ram P.; Khokle, W. S.; Pachauri, J. P.; Tripathi, C. C.; Pathak, B. C.; Virdi, G. S.
February 1989
Applied Physics Letters;2/6/1989, Vol. 54 Issue 6, p570
Academic Journal
We report for the first time the influence of fluorine implantation in the Bi-Sr-Ca-Cu-O system. The incorporation of fluorine was found to enhance the zero resistance temperature and to sharpen the high-temperature transition. The fluorinated sample exhibited Tc (R=0)=89 K and the high Tc phase of the composition had Tc (on) as high as 124 K with an extrapolated Tc (end) of 114 K. Resistance temperature characteristics of a sample before and after fluorine implantation are presented.


Related Articles

  • Phase formation in a Bi-Sr-Ca-Cu oxide superconductor. Mei, Yu; Green, S. M.; Jiang, C.; Luo, H. L. // Journal of Applied Physics;12/15/1988, Vol. 64 Issue 12, p6795 

    Presents information on a study which determined the formation of different superconducting phases in the bismuth oxide system. Description of a bismuth superconductor; Methodology of the study; Results and discussion.

  • Oriented high-temperature superconducting Bi-Sr-Ca-Cu-O thin films prepared by ion beam deposition. Lorentz, Robert D.; Sexton, J. H. // Applied Physics Letters;10/24/1988, Vol. 53 Issue 17, p1654 

    High-temperature superconducting Bi-Sr-Ca-Cu-O thin films have been prepared by ion beam sputter deposition. Films near the 2:2:1:2 and 4:3:3:4 compositions were deposited onto single-crystal MgO [100] substrates and annealed between 825 and 880 °C. Films with composition...

  • Structural changes of multiphase bismuth-oxide superconductor thin films at high temperatures. Ishibashi, Teruo; Yoda, Osamu // Journal of Applied Physics;8/1/1995, Vol. 78 Issue 3, p2120 

    Focuses on the structural changes during heat treatment for multiphase bismuth-oxide thin film superconductor in terms of desorption of oxygen. Changes in x-ray integral intensities of the reflection of the phases; Application of metal-organic chemical-vapor deposition; Relationship of...

  • Passivation of high Tc superconductor surfaces with CaF2 and Bi, Al, and Si oxides. Hill, D. M.; Meyer, H. M.; Weaver, J. H.; Nelson, D. L. // Applied Physics Letters;10/24/1988, Vol. 53 Issue 17, p1657 

    X-ray photoelectron spectroscopy has been used to investigate passivation of the high-temperature superconductors YBa2Cu3O7-x and Bi2Ca1+xSr2-xCu2O8+y involving overlayer materials deposited in vacuum onto freshly cleaved surfaces. CaF2 was found to be completely inert and to form uniform...

  • Anomalies in the physical properties of the α form of bismuth oxide. Orlov, V. G.; Bush, A. A.; Ivanov, S. A.; Zhurov, V. V. // Physics of the Solid State;May97, Vol. 39 Issue 5, p770 

    Several of the physical properties of α-Bi[sub 2]O[sub 3] have been studied in the temperature region above room temperature: the thermal expansion, the thermally stimulated current, the permittivity, the electrical resistance, and the specific heat. X-ray diffraction measurements and a...

  • Discovery of a second family of bismuth-oxide-based superconductors. Kazakov, S.M.; Chaillout, C. // Nature;11/13/1997, Vol. 390 Issue 6656, p148 

    Reports on the synthesis of a second family of superconducting bismuth oxides, based on SrBio3. The demonstration that partial substitution of potassium or rubidium for strontium induces superconductivity with Tc values of approximately 12 Kelvin for Sr1-xKxBiO3 and 13 Kelvin for Sr1-xRbxBiO3.

  • Effect of Metastable Phases on the Structural Perfection of Single Crystals of Stable Bismuth Oxide Compounds. Zhereb, V. P.; Skorikov, V. M. // Inorganic Materials;Nov2003, Vol. 39 Issue 11, p1181 

    It is shown that a detailed understanding of metastable phase relations is crucial for the ability to grow perfect Bi4Si3O12 and Bi4Ge3O12 single crystals by the Czochralski process. The high stability of metastable states in melts of bismuth-oxide-containing systems has a marked effect on the...

  • Complex plane analysis of trapping phenomena in zinc oxide based varistor grain boundaries. Alim, Mohammad A.; Seitz, Martin A.; Hirthe, Richard W. // Journal of Applied Physics;4/1/1988, Vol. 63 Issue 7, p2337 

    Presents a study which investigated the origin of the frequency-dependent Mott-Schottky behavior observed in a wide range of zinc oxide-bismuth trioxide varistor systems. Discussion on the trapping relaxations which contribute to the measured metal-oxide varistor grain-boundary admittance;...

  • Vibrational analysis of the X2(3/2)–X1(1/2) infrared system of BiO. Linton, C.; Bacis, R.; Martin, F.; Rosenwaks, S.; Vergès, J. // Journal of Chemical Physics;3/1/1992, Vol. 96 Issue 5, p3422 

    The vibrational analysis of the X2(3/2)–X1(1/2) system of BiO in the near infrared region, 6400–7700 cm-1, has been extended. Transitions in the Δv=-1, 0, and +1 sequences have been observed and assigned up to v=6 in the upper state and no transitions have been observed with...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics