Physics – Condensed Matter – Superconductivity
Scientific paper
2010-05-11
Phys. Rev. B 81, 174509 (2010)
Physics
Condensed Matter
Superconductivity
6 pages, 3 figures
Scientific paper
By using a high quality Tl2Ba2Ca2Cu3O10 (Tl-2223) single crystal as an example, the magnetization vector was probed in the reversible region of highly anisotropic cuprate superconductors. For that, we have measured its components along and transverse to the applied magnetic field for different crystal orientations. The analysis shows that the angular dependence of the perpendicular component of the magnetization vector follows the one predicted by a London-like approach which includes a contribution associated with the thermal fluctuations of the 2D vortex positions. For the Tl-2223 crystal studied here, a lower bound for the anisotropy factor was estimated to be about 190.
Mosqueira Jesús
Rey Ramon I.
Vidal Félix
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