Abstract:
This paper presents a comparative study of the complex permeability μ∗ of single crystals of hightemperature superconductors RBa2Cu3Oy (R = Y, Tm) as a function of the magnetic field applied along the crystallographic ab-plane. Contributions to μ∗ from the oscillatory motion of vortices perpendicular to layers of the crystal lattice, μv, and realization of the critical state along the layers are obtained. It is found that, as the temperature approaches Tc, the behavior of the field dependences of μv and the critical current is substantially different for the given samples. This effect is related to the manifestation of an additional unusual mechanism of intrinsic pinning, which arises when Y3+ is replaced with the Tm3+ magnetic ion. The revealed specificities of the interaction of vortices with the magnetic ion layer suggest that, most probably, they have a magnetic nature and are not related to the variation in the condensation energy in the core of the vortex.
Citation:
K. S. Pigalskiy, “Enhancement of the intrinsic pinning by a magnetic field in a single crystal of high-temperature superconductor TmBa2Cu3Oy”, Fizika Tverdogo Tela, 59:3 (2017), 440–446; Phys. Solid State, 59:3 (2017), 450–456
\Bibitem{Pig17}
\by K.~S.~Pigalskiy
\paper Enhancement of the intrinsic pinning by a magnetic field in a single crystal of high-temperature superconductor TmBa$_{2}$Cu$_{3}$O$_{y}$
\jour Fizika Tverdogo Tela
\yr 2017
\vol 59
\issue 3
\pages 440--446
\mathnet{http://mi.mathnet.ru/ftt9632}
\crossref{https://doi.org/10.21883/FTT.2017.03.44151.313}
\elib{https://elibrary.ru/item.asp?id=29006137}
\transl
\jour Phys. Solid State
\yr 2017
\vol 59
\issue 3
\pages 450--456
\crossref{https://doi.org/10.1134/S106378341703026X}
Linking options:
https://www.mathnet.ru/eng/ftt9632
https://www.mathnet.ru/eng/ftt/v59/i3/p440
This publication is cited in the following 2 articles:
K. S. Pigalskiy, “Vibrational motion of a vortex lattice induced near the surface of a type-II superconductor by an external low-frequency ac magnetic field”, Phys. Rev. B, 103:6 (2021)
K.S. Pigalskiy, L.I. Trakhtenberg, “Enhancement of intrinsic pinning in the high-temperature superconductor TmBa2Cu3O : Manifestation of the interaction between vortices and a magnetic rare-earth ion”, Journal of Magnetism and Magnetic Materials, 497 (2020), 165916