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2003 | 1 | 3 | 363-392
Tytuł artykułu

Magnetic field and currents in HTSC films

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Magnetic field measurements above type-II superconductor films in a remanent magnetization state have been used to determine two dimensional surface current distributions. Using the Biot-Savart law for the surface current density, integral equations (of 2-D convolution type) for two components of current have been obtained. These equations have been solved by employing Tikhonov's method of generalized discrepancy, and the surface current pattern in superconductors as well as the magnetic field distribution on the film surface have been obtained. Current peculiarities related to various kinds of inhomogeneities, specific character of the film form, and a laser pulse effect have been observed. In particular, it was discovered that a laser pulse can signficantly redistribute the film currents without changing the total number of current vortices in the film.
Wydawca

Czasopismo
Rocznik
Tom
1
Numer
3
Strony
363-392
Opis fizyczny
Daty
wydano
2003-09-01
online
2003-09-01
Twórcy
autor
  • Institute for Physics of Microstructures, Russian Academy of Sciences, GSP-105, Nizhny Novgorod, Russia
autor
  • Institute for Physics of Microstructures, Russian Academy of Sciences, GSP-105, Nizhny Novgorod, Russia
autor
  • Institute for Physics of Microstructures, Russian Academy of Sciences, GSP-105, Nizhny Novgorod, Russia
Bibliografia
  • [1] A. Forkl, H. Habermeier, B. Leibold, T. Dragon, H. Kronmuller: “A new calibration technique for the determination of magnetic-flux density with the magnetooptical Farafay-effect”, Physica C, Vol. 180, (1991), pp. 1503. http://dx.doi.org/10.1016/0921-4534(91)90655-I[Crossref]
  • [2] M. Turchinskaya, D.L. Kaizer, F.W. Gaile, A.J. Shapiro, A. Roitburg, L.A. Dorosinskii, V.I. Nikitenko, A.A. Polanskii, V.K. Vlasko-Vlasov: “Real-time observation of the effect of grain boundaries on magnetization of Y Ba 2Cu3O7−y policristals”, Physica C, Vol. 221, (1994), pp. 62. http://dx.doi.org/10.1016/0921-4534(94)90666-1[Crossref]
  • [3] Th. Schuster, H. Kuhn, E.H. Brandt, M.V. Indenbom, M. Klaser, G. Muller-Vogt, H.-U. Habermeier, H. Kronmuller, A. Forkl: “Current and field pattern in rectangular and inhomogeneous superconductors”, Physical Review B, Vol. 52, (1995), pp. 10375. http://dx.doi.org/10.1103/PhysRevB.52.10375[Crossref]
  • [4] T. Haage, J. Zegenhagen, J.Q. Li, H.-U. Habermeier, M. Cardona, Ch. Jooss, R. Warthmann, A. Forkl, H. Kronmuller: “Transport properties and flux pinning by self-organization in YBa 2Cu3O7−y films on vicinal SrTiO 3(001)”, Physical Review B, Vol. 56, (1997), pp. 8404. http://dx.doi.org/10.1103/PhysRevB.56.8404[Crossref]
  • [5] J. Albrecht, Ch. Jooss, R. Warthmann, A. Forkl, H. Kronmuller: “Observation of microscope currents in superconducting ceramics”, Physical Review B, Vol. 57, (1998), pp. 10332. http://dx.doi.org/10.1103/PhysRevB.57.10332[Crossref]
  • [6] D. Brawner, N. Ong: “Scanning Hall microprobe measurements of magnetization profiles in YBa 2Cu3O7−y single crystals”, Journal of Applied, Physics, Vol. 73, (1993), pp. 3890. http://dx.doi.org/10.1063/1.352876[Crossref]
  • [7] A.M. Chang, H.D. Hallen, L. Harriot, H.F. Hess, H.L. Kao, J. Kwo, R.E. Miller, R. Wolf, J. van der Ziel: “Scanning Hall probe microscopy”, Appl. Phys. Lett., Vol. 61, (1992), pp. 1974. http://dx.doi.org/10.1063/1.108334[Crossref]
  • [8] B.J. Roth, N.G. Sepulveda, J.P. Wikswo: “Using a magnetimeter to image a two-dimensional current distribution”, Journal of Applied Physics, Vol. 65, (1989), pp. 361. http://dx.doi.org/10.1063/1.342549[Crossref]
  • [9] A.N. Tikhonov:Solution of ill-posed problems, Winston, New York, 1977.
  • [10] C.P. Bean: “Magnetization of High-Field Superconductors”, Reviews of Modern Physics, Vol. 36, (1964), pp. 31. http://dx.doi.org/10.1103/RevModPhys.36.31[Crossref]
  • [11] Y.N. Nozdrin, P.P. Visheslavtzev, I.D. Tokman, I.M. Gordion: “A laser-Magnetic Tomography for HTSC Film”, IEEE Transactions on Applied Superconductivity, Vol. 5, (1995), pp. 1424. http://dx.doi.org/10.1109/77.402832[Crossref]
  • [12] R.J. Wijngaarden, K. Heeck, H.J.W. Spoelder, R. Surdeanu, R. Griessen: “Fast determination of 2D current patterns in flat conductors from measurement of their magnetic field”, Physica C, Vol. 295, (1998), pp. 177. http://dx.doi.org/10.1016/S0921-4534(97)01799-1[Crossref]
  • [13] P.N. Mikheenko, Yu.E. Kuzovlev: “Inductance measurements of HTSC films with high critical currents”, Physica C, Vol. 204, (1993), pp. 229. http://dx.doi.org/10.1016/0921-4534(93)91004-F[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_BF02475851
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