Anisotropy of the mixed‐state resistance of Tl 2 Ba 2 CaCu 2 O 8  single crystals | Zendy

Weidinger A. | Zendy; Seng P. | Zendy; Tidecks R. | Zendy; Samwer K. | Zendy; Yu. Logvenov G. | Zendy; Kolesnikov N. N. | Zendy

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Anisotropy of the mixed‐state resistance of Tl 2 Ba 2 CaCu 2 O 8 single crystals

Author(s) -

Weidinger A.,

Seng P.,

Tidecks R.,

Samwer K.,

Yu. Logvenov G.,

Kolesnikov N. N.

Publication year - 1997

Publication title -

annalen der physik

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.009

H-Index - 68

eISSN - 1521-3889

pISSN - 0003-3804

DOI - 10.1002/andp.19975090302

Subject(s) - condensed matter physics , anisotropy , vortex , superconductivity , perpendicular , materials science , magnetic field , anomaly (physics) , josephson effect , physics , optics , geometry , mathematics , quantum mechanics , thermodynamics

The electrical resistance of single crystals of the high‐temperature superconductor Tl 2 Ba 2 CaCu 2 O 8 has been measured as a function of the angle θ between the direction of the magnetic field and the current‐carrying CuO 2 ‐planes. The resistance is maximal for θ = 90° ( B ⟂CuO 2 ‐planes) and decreases to a minimum at θ = 0°. For small angles an anomalous enhancement of the resistance is found. While the general shape of the resistance is generated by the motion of “pancake vortices” in the CuO 2 ‐planes, the anomaly is due to “Josephson vortices” moving perpendicular to the planes.

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