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Crystals 2019, 9(1), 4;

Effect of Pressure on the Superconducting Properties of Tl2Ba2Ca2Cu3O9-δ

Department of Physics, University of North Georgia, Dahlonega, GA 30597, USA
Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
Author to whom correspondence should be addressed.
Received: 29 November 2018 / Revised: 14 December 2018 / Accepted: 18 December 2018 / Published: 21 December 2018
(This article belongs to the Special Issue Quantum and Molecular Mechanic Analysis of Crystalline Materials)
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This study investigated the application of pressure on the superconducting properties of a thallium-based cuprate, namely Tl2Ba2Ca2Cu3O9-δ (Tl-2223). The superconducting transition temperature (Tc) and the critical current density (Jc) were studied by applying ~1 GPa of pressure. This hydrostatic pressure was applied in a piston-cylinder-cell (PCC), using Pb as a manometer and Daphne 7373 oil as the pressure transmitting medium. For estimating the Jc, we used Bean’s critical state formula on the magnetic hysteresis curves at 10 K and 20 K. Both the Tc and Jc improved with pressure. The Jc values increased at both temperatures and the Tc value increased by 4 K with a pressure of 0.8 GPa. These results clearly indicate that pressure is another tool to control properties of quantum materials. View Full-Text
Keywords: cuprates; Tl-2223; pressure cuprates; Tl-2223; pressure

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Ijaduola, A.O.; Shipra, R.; Sefat, A.S. Effect of Pressure on the Superconducting Properties of Tl2Ba2Ca2Cu3O9-δ. Crystals 2019, 9, 4.

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