Learning Reduced Order Dynamics via Geometric Representations
Imran Nasim, Melanie Weber
SCML 2024
A study of the thermodynamic, magnetic, structural and physical properties of the Y2Ba4Cu7O14+x (247) phase is presented in this paper. The stability range of the 247 phase in the P-T phase diagram forms a narrow band between that of the 124 and 123 phases. The critical temperature Tc of fully oxygenated ceramic samples varies from 50 to 93 K as the content of the carbonate changes from 6000 to 500 ppm. Susceptibility measurements performed on pure sintered samples with low CO2 content show a Tc onset at 93 K with a sharp transition. At a low magnetic field a shoulder caused by weak links has been observed. NQR measurements of ceramic samples and single-crystal X-ray investigations proved a high structural perfection of the samples with Tc#62;90 K can clearly showed the existence of many defects in the materials with lower Tc. The increase of Tc from 4 to 90 K in the 247 crystals is coupled with a decrease of the apical bond length. © 1994.
Imran Nasim, Melanie Weber
SCML 2024
Oliver Schilter, Alain Vaucher, et al.
Digital Discovery
I.K. Pour, D.J. Krajnovich, et al.
SPIE Optical Materials for High Average Power Lasers 1992
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering