Publications (5)
Surface phase transitions in BiFeO3 below room temperature
R. Jarrier, X. Marti, J. Herrero-Albillos +15
We combine a wide variety of experimental techniques to analyze two heretofore mysterious phase transitions in multiferroic bismuth ferrite at low temperature. Raman spectroscopy,…
IR Reflection mechanism inside the annulus between two concentric cylindrical tubes
Khaled Mohamad, P. Ferrer
A mathematical model was derived to calculate the IR reflection inside the annulus between two concentric cylindrical tubes, where the inner side of the outer cylinder is assumed t…
Skin layer of BiFeO3 single crystals
X. Marti, P. Ferrer, J. Herrero-Albillos +5
A surface layer ("skin") that is functionally and structurally different from the bulk was found in single crystals of BiFeO3. Impedance analysis indicates that a previously report…
Cavity receiver designs for parabolic trough collector
Khaled Mohamad, P. Ferrer
Solar parabolic trough collector technology has received significant attention among researchers for its economic potential to meet electrical and thermal energy demands. Furthermo…
Experimental and simulated Performance of Hot Mirror Coatings in a Parabolic Trough Receiver
V. S Kaluba, Khaled Mohamad, P. Ferrer
Thermal radiation is the dominant heat loss mechanism for receiver units on a parabolic solar collector plant at high temperatures. Reduction of these losses is traditionally achie…