Enhanced J[sub c] properties in superconducting NbTi composites by introducing Nb artificial

Matsumoto, Kaname; Takewaki, Hirokazu; Tanaka, Yasuzo; Miura, Osuke; Yamafuji, Kaoru; Kunaki, Kazuo; Iwakuma, Masataka; Matsushita, Teruo
January 1994
Applied Physics Letters;1/3/1994, Vol. 64 Issue 1, p115
Academic Journal
Examines the increase in critical current densities in superconducting niobium titanide (NbTi) composites by Nb artificial pins with a layered structure. Fabrication of Nb/NbTi composite superconductor; Anisotropy of the critical current densities.


Related Articles

  • Lower critical fields of textured high - T[sub c] superconductors. Finkel, V.A.; Toryanik, V.V. // Low Temperature Physics;Aug97, Vol. 23 Issue 8, p618 

    Explores the possibility of studying the anisotropy of lower critical fields in high temperature superconducting materials during the measurements of critical currents of textured samples subjected to the action of magnetic fields in three different directions. Use of the theory of magnetic...

  • Ab-plane anisotropy of the critical currents in twinned YBa[sub 2]Cu[sub 3]O[sub 7-delta].... Safar, H.; Foltyn, S.; Kung, H.; Maley, M.P.; Willis, J.O.; Arendt, P.; Wu, X.D. // Applied Physics Letters;3/25/1996, Vol. 68 Issue 13, p1853 

    Investigates ab-plane anisotropy of the critical currents in twinned YBa[sub 2]Cu[sub 3]O[sub 7-delta] superconductor films. Deposition of films on crystalline yttria-stabilized zirconia (YSZ); Effect of the alignment of the twin boundary mosaic diagonal; Nucleation of the YSZ buffer layer in...

  • Effect of varying material anisotropy on critical current anisotropy in vicinal YBa[sub 2]Cu[sub 3]O[sub 7-δ] thin films. Durrell, J.H.; Evetts, J.E.; Rössler, R.; Delamare, M.P.; Pedarnig, J.D.; Bäuerle, D. // Applied Physics Letters;12/15/2003, Vol. 83 Issue 24, p4999 

    The high T[sub c] cuprate superconductors are noted for their anisotropic layered structure, certain of these materials indeed tend toward the limit of a Lawrence–Doniach superconductor. However, YBa[sub 2]Cu[sub 3]O[sub 7-δ] has a smaller anisotropy than would be expected from its...

  • Field-Direction Dependence of the Upper Critical Field in Organic Superconductors. Croitoru, M.; Houzet, M.; Buzdin, A. // Journal of Superconductivity & Novel Magnetism;Jul2012, Vol. 25 Issue 5, p1283 

    In this work, we investigate the anisotropy of the in-plane critical field in conventional and spatially modulated phases of layered superconductors within the quasi-classical approach, taking into account the interlayer Josephson coupling. We show that the anisotropy of the onset of...

  • Analytical technique for deriving the distribution of critical currents in a superconducting wire. Warnes, W. H.; Larbalestier, D. C. // Applied Physics Letters;5/19/1986, Vol. 48 Issue 20, p1403 

    The derivation of the critical current or critical current density distribution from an analysis of the voltage-current characteristic of a composite superconductor is discussed. Critical current distributions have been obtained for three Nb-Ti composites in quite different metallurgical states....

  • Scaling of critical current in granular HTS materials. Bogoliubov, N.A. // Low Temperature Physics;Aug97, Vol. 23 Issue 8, p606 

    Reports on the temperature and size dependences of critical current of three bismuth-based and one yttrium-based ceramic samples of rectangular cross section in zero magnetic field. Presentation of the critical current in ceramic high temperature superconductors as the product of temperature-...

  • Noncontact method for measurement of the critical current densities and diagnostics of superconductors. Rostami, Kh. R. // Low Temperature Physics;Jan2001, Vol. 27 Issue 1, p79 

    The role of the geometric factor of a superconducting sample in magnetic measurements of the critical current densities J[sub c] is investigated. It is shown that a small difference of the shape of the sample from cylindrical does not have much effect on the value of J[sub c]. It is found that...

  • Critical Current in Superconducting Quantum Point Contacts. Shchelkachev, N. M. // JETP Letters;6/25/2000, Vol. 71 Issue 12, p504 

    The quantization of the critical current I[sub c] in a quantum point contact is studied on varying the number of free channels (varying the constriction width d[sub 0] in 2DEG). It is shown that the shape of the quantum I[sub c] is not universal and depends on the parameters of the contact, in...

  • Offset criterion for determining superconductor critical current. Ekin, J. W. // Applied Physics Letters;8/28/1989, Vol. 55 Issue 9, p905 

    Critical-current criteria based on electric field or resistivity can present a number of problems in defining critical current, especially for high Tc superconductors in the vicinity of the critical temperature or upper critical field. The resulting critical-current density Jc can be quite...


Read the Article


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

Try another library?
Sign out of this library

Other Topics