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Crystal Growth and Characterization of HgBa2Ca2Cu3O8+{\delta} Superconductor with the Highest Critical Temperature at Ambient Pressure
- Source :
- Inorg. Chem. 2017,56,9396
- Publication Year :
- 2018
-
Abstract
- We report an original procedure for the elaboration of very high quality single crystals of superconducting HgBa2Ca2Cu3O8+{\delta} mercury cuprates. These single crystals are unique with very high quality surface paving the way for spectroscopic, transport and thermodynamic probes in order to understand the hole-doped cuprate phase diagram. The superconductivity transition width of about 2 K indicates they are homogeneous. Annealing allows to optimize Tc up to Tc$^{max}$ = 133 K. We show for the first time that with adequate heat treatment, Hg-1223 can be largely under-doped and its doping level controlled. Importantly, the crystal structure was studied in detail by single crystal X-ray diffraction, and we have identified the signature of the under-doping by a detailed sample characterization and micro-Raman spectroscopy measurements.<br />Comment: 4 pages, 3 figures, see supporting information for details
Details
- Database :
- arXiv
- Journal :
- Inorg. Chem. 2017,56,9396
- Publication Type :
- Report
- Accession number :
- edsarx.1808.00228
- Document Type :
- Working Paper