TITLE

Hysteretic levitation forces in superconducting ceramics

AUTHOR(S)
Moon, F. C.; Yanoviak, M. M.; Ware, R.
PUB. DATE
May 1988
SOURCE
Applied Physics Letters;5/2/1988, Vol. 52 Issue 18, p1534
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Magnetization forces between small permanent magnets and bulk high Tc superconducting ceramic materials have been measured and show marked hysteretic behavior as a function of the distance between the magnet and superconductor. Magnetic forces of up to 2500 dyn, both normal and tangential to the superconductor surface, have been made. Near-reversible forces are obtained for small motions of the magnet, however, which are believed to be related to flux pinning.
ACCESSION #
9826662

 

Related Articles

  • Texturing of DyBa[sub 2]Cu[sub 3]O[sub 7] superconducting grains synthesized in situ in a.... Cloots, R.; Rulmont, A.; Hannay, C.; Goldelaine, P.A.; Vanderschueren, H.W.; Regnier, P.; Ausloos, M. // Applied Physics Letters;11/30/1992, Vol. 61 Issue 22, p2718 

    Demonstrates the texturing of DyBa[sub 2]Cu[sub 3]O[sub 7] superconducting ceramics in a small magnetic field. Transport properties of high-temperature superconductors; Observation of texturing and terrace substructures; Relevance of the magnetic field on texturing and growth.

  • Preparation and magnetic properties of Bi-Pb-Sr-Ca-Cu-O superconducting ceramics. Uzumaki, Takuya; Yamanaka, Kazunori; Kamehara, Nobuo; Niwa, Koichi // Applied Physics Letters;5/29/1989, Vol. 54 Issue 22, p2253 

    A high Tc phase (Tc [bar_over_tilde:_approx._equal_to]110 K) in Bi-Pb-Sr-Ca-Cu-O systems was synthesized by adding Ca2PbOx to the mixture of a low Tc phase (Tc [bar_over_tilde:_approx._equal_to]80 K) and a Bi-Sr-Cu-O (Tc [bar_over_tilde:_approx._equal_to]10 K). X-ray powder diffraction...

  • High-frequency harmonics generation by Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub y] ceramic.... Grishin, A.M.; Korenivski, V.N.; Rao, K.V.; Ulyanov, A.N. // Applied Physics Letters;7/25/1994, Vol. 65 Issue 4, p487 

    Examines the diamagnetic response of a ceramic Bi[sub 2]Sr[sub 2]Ca[sub 2]Cu[sub 3]O[sub y] superconductors in the presence of a direct or alternating transport current. Characteristics of the linear magnetic flux generated by the material; Supercurrent contribution regimes observed in the...

  • Features of the temperature dependence of trapped magnetic flux in yttrium high-T[sub c] superconducting ceramics. Sukhanov, A. A.; Omel'chenko, V. I. // Low Temperature Physics;Jan2001, Vol. 27 Issue 1, p18 

    The temperature dependence of the trapped magnetic field (TMF) H[sub t](T) in yttrium high-T[sub c] superconducting (Y-HTSC) ceramic systems is investigated. For field-cooled trapping the H[sub t](T) curves are the same as H[sub t](T[sub t]) (T[sub t] is the trapping temperature): H[sub t]...

  • Effect of an Electric Field on the I–V Curves of DyBa[sub 2]Cu[sub 3 – ][sub x]O[sub y] /1 wt % Pt HTSC Ceramics. Orlova, T. S.; Smirnov, B. I.; Laval, J. Y. // Physics of the Solid State;Jun2001, Vol. 43 Issue 6, p1007 

    This paper reports on an experimental study of the effect of a magnetic field, B ≤ 70 G, and an electric field, E = 120 MV/m, on the critical current I[sub c] and I-V curves of DyBa[sub 2]Cu[sub 3-x]O[sub y] HTSC ceramics (x = 0 and 0.2), both undoped and doped with 1 wt % Pt. It has been...

  • Intergranular Properties of (Y[sub 1-x-y]Zr[sub x]Ca[sub y])Ba[sub 2]Cu[sub 3]O[sub 7-δ] Compounds. Deac, I. Gr.; Burzo, E.; Pop, A. V.; Pop, V.; Tetean, R.; Kovacs, D.; Borodi, G. // International Journal of Modern Physics B: Condensed Matter Phys;5/30/99, Vol. 13 Issue 13, p1645 

    The intergranular properties of (Y[sub 1-χ-y]Zr[sub χ]Ca[sub y])Ba[sub 2]Cu[sub 3]O[sub 7-δ] ceramics were studies by using temperature-dependent ac susceptibility measurements at zero dc magnetic field. The intergranular critical current density was determined from ac susceptibility...

  • Critical currents of ceramic superconductors induced by pulsed magnetic fields. Yasuoka, H.; Mazaki, H.; Tochihara, S.; Kakihana, M.; Yoshimura, M. // Journal of Applied Physics;12/1/1993, Vol. 74 Issue 11, p6759 

    Presents a study which measured the critical current density of ceramic superconductors with pulsed magnetic fields. Way of measuring induced signals; Sample of measurement used; Types of induced signals from the paired search coils.

  • Effect of magnetic flux trapped in intergranular space on magnetic field dependences of rf... Golubnichaya, G.V.; Kirichenko, A.Ya. // Low Temperature Physics;Feb97, Vol. 23 Issue 2, p122 

    Investigates the dependences of radio frequency (rf) absorption in high temperature superconducting ceramics on a magnetic field. Proposed electrodynamic model that takes into account the magnetic flux trapping both in granules and in the intergranulae space; Explanation of all observed...

  • Nonrandom ceramic superconductor-metal composites. Reich, S.; Felner, I. // Journal of Applied Physics;1/1/1990, Vol. 67 Issue 1, p388 

    Presents the preparation of a nonrandom ceramic superconductor-metal composites. Transport properties of nonrandom metal superconductors composites; Background on magnetic measurements and critical currents; Problem associated with electrical connectivity between semiconductors grains.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics