TITLE

Nucleation of superconductivity in an Al mesoscopic disk with magnetic dot

AUTHOR(S)
Golubović, D.S.; Pogosov, W.V.; Morelle, M.; Moshchalkov, V.V.
PUB. DATE
August 2003
SOURCE
Applied Physics Letters;8/25/2003, Vol. 83 Issue 8, p1593
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have studied the nucleation of superconductivity in a mesoscopic Al disk with a Co/Pd magnetic dot placed on the top by measuring the normal/superconducting phase boundary T[sub c](B). The measurements have revealed a pronounced asymmetry in the phase boundary with respect to the direction of the applied magnetic field, indicating an enhancement of the critical field when an applied magnetic field is oriented parallel to the magnetization of the magnetic dot. The theoretical T[sub c](B) curve is in a good agreement with the experimental data. © 2003 American Institute of Physics.
ACCESSION #
10603827

 

Related Articles

  • Nucleation of superconductivity in mesoscopic star-shaped superconductors. Dikin, D. A.; Chandrasekhar, V.; Misko, V. R.; Devreese, J. T.; Fomin, V. M. // European Physical Journal B -- Condensed Matter;Jul2003, Vol. 34 Issue 2, p231 

    Examines the phase transition of a star-shaped superconductor, which covers smoothly the range from zero to two dimensions with respect to the superconducting coherence length. Nucleation of superconductivity; Solutions to the Ginzburg-Landau equations; Impact of magnetic field or temperature...

  • The effect of pinning and nucleation field distributions on reversible magnetization behavior. Crew, D. C.; Lewis, L. H. // Journal of Applied Physics;5/1/2000, Vol. 87 Issue 9, p4783 

    A model has been developed to examine the effect that different distributions of pinning and nucleation fields have upon the reversible magnetization behavior. The model allows each grain to be in one of three states, saturated in the positive and negative directions or containing a domain wall....

  • Permanent magnets of high-Tc superconductors. Weinstein, R.; Chen, I.-G.; Liu, J.; Xu, J.; Obot, V.; Foster, C. // Journal of Applied Physics;5/15/1993, Vol. 73 Issue 10, p6533 

    Discusses a study which detailed the advances on permanent high-T[subc] superconducting magnets. Procedures that can be used to activate the trapped field; Ways to reproduce observed trapped magnetic fields; Analysis of the constant density of vortices.

  • Trapped-field of RE-123 (RE=Gd,Dy) bulk superconducting magnets. Nariki, S.; Sakai, N.; Murakami, M. // AIP Conference Proceedings;2002, Vol. 614 Issue 1, p686 

    We fabricated large-grain c-axis oriented Gd-Ba-Cu-O and Dy-Ba-Cu-O bulk superconductors with very fine 211 particles and studied their field-trapping properties. Single domain Gd-Ba-Cu-O bulk superconductors with Ag addition were melt-textured under controlled oxygen partial pressure of 1.0%....

  • Energy conversion in electromagnetic launchers containing monolithic YBa[sub 2]Cu[sub 3]O[sub 7-δ]. Putman, P. T.; Salama, K. // AIP Conference Proceedings;2002, Vol. 614 Issue 1, p376 

    Previously studied electromagnetic launchers have contained either copper magnets or superconducting magnets wound from tape. However, an attractive alternative to use of wound magnets is use of monolithic magnets made by improved melt-texturing techniques. Melt-textured monolithic magnets can...

  • World's strongest superconductor-coil magnetic field achieved. Machlis, Sharon // Design News;9/20/93, Vol. 49 Issue 18, p16 

    Reports on the claim of Intermagnetics General Corp. and the United States Department of Energy's Argonne National Laboratory that they have produced the strongest magnetic field ever generated by a coil of high-temperature superconduction. Magnetic field 49,500 times as strong as the Earth's;...

  • Nonmechanical magnetothermal wind blower by a superconducting magnet. Uetake, Hiromichi; Nakagawa, Jun // Journal of Applied Physics;4/15/1999 Part 2B of 2, Vol. 85 Issue 8, p5735 

    Presents information on a study which demonstrated a nonmechanical magnetothermal wind blower by a superconducting magnet. Experiment and theory; Experimental observation; Results.

  • A Fundamental Study Regarding the Control of Nucleate Boiling in a Complex Magnetizable Fluid By an Applied Magnetic Field, in Microgravity Conditions. Stoian, Floriana D.; Pop, Gheorghe; Bica, Doina; Stoica, Virgil; Marinică, Oana; Vékás, Ladislau // AIP Conference Proceedings;2003, Vol. 654 Issue 1, p149 

    A new type of working fluid to be used for boiling or multiphase heat transfer in microgravity conditions is proposed. The advantages of using a complex magnetisable fluid for boiling or multiphase heat transfer in microgravity are presented, based on the theoretical analysis of the body forces...

  • Use of magnetic field screening by high-temperature superconducting films to switch microwave signals. Burbaev, T. M.; Krasnosvobodtsev, S. I.; Kurbatov, V. A.; Malakshinov, N. P.; Nozdrin, V. S.; Penin, N. A. // Technical Physics Letters;Jul98, Vol. 24 Issue 7, p533 

    The efficiency with which YBCO films screen an alternating magnetic field near the superconducting transition was measured. In the decimeter range measurements were made of the characteristics of a switch whose operating principle was based on the change in the screening of an alternating...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics