Preparation and magnetic measurements of single crystal Tl2Ba2CaCu2O8

Preparation and magnetic measurements of single crystal Tl2Ba2CaCu2O8

A novel self-flux growth technique has been used to prepare superconducting single crystals with transition temperatures, Tc, ranging from 105 to 124 K in the Tl-Ca-Ba-Cu-O system. Measurements of the magnetic hysteresis and magnetic relaxation in Tl2Ba2CaCu2O8 crystals reveal extraordinary flux cre...

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Veröffentlicht in:Journal of crystal growth 1991-02, Vol.109 (1-4), p.436-440
Hauptverfasser: Liu, J.Z., Jia, Y.X., Klavins, P., Shelton, R.N., Downey, J., Lam, D.J.
Format: Artikel
Sprache:eng
Schlagworte:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth from solutions
Materials science
Methods of crystal growth
physics of crystal growth
Physics
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Zusammenfassung:A novel self-flux growth technique has been used to prepare superconducting single crystals with transition temperatures, Tc, ranging from 105 to 124 K in the Tl-Ca-Ba-Cu-O system. Measurements of the magnetic hysteresis and magnetic relaxation in Tl2Ba2CaCu2O8 crystals reveal extraordinary flux creep behavior that persists at low temperatures. These effects are attributed to the lack of effective pinning centers in these materials.
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(91)90213-O