With the shadowgraph method, three ultrasonic pulses in Water, which correspond to the conversion modes of the fast compressional wave, the transverse wave and the slow compressional wave in the sample of Fluid-Satura...With the shadowgraph method, three ultrasonic pulses in Water, which correspond to the conversion modes of the fast compressional wave, the transverse wave and the slow compressional wave in the sample of Fluid-Saturated Porous Medium (FSPM) respectively,were observed and recorded by CCD camera. The positions of these pulses are cousistent with the computed positions and the time interval between these pulses measured by a transmitterreceiver method.展开更多
We report the growth of high quality Fe excess and Co doped,FeTxSe single crystals in nominal ratio via slow cooling method of high temperature solution growth technique and,their structural and physical properties th...We report the growth of high quality Fe excess and Co doped,FeTxSe single crystals in nominal ratio via slow cooling method of high temperature solution growth technique and,their structural and physical properties through the X‐ray diffraction,Raman spectroscopy,magnetic and transports measurements.Selective area electron diffraction(SAED)patterns and X‐ray diffraction of cleavage piece confirm the growth of single crystals in(h0l)orientations.Observations of phonon vibration modes(A_(1g) and B_(1g))in Raman spectroscopy measurements mark the qualitative analysis of these single crystals.Low temperature magnetic and electrical transport studies manifest the superconducting nature of both single crystals.展开更多
文摘With the shadowgraph method, three ultrasonic pulses in Water, which correspond to the conversion modes of the fast compressional wave, the transverse wave and the slow compressional wave in the sample of Fluid-Saturated Porous Medium (FSPM) respectively,were observed and recorded by CCD camera. The positions of these pulses are cousistent with the computed positions and the time interval between these pulses measured by a transmitterreceiver method.
基金support through the project No.F.30‐303/2016(BSR).
文摘We report the growth of high quality Fe excess and Co doped,FeTxSe single crystals in nominal ratio via slow cooling method of high temperature solution growth technique and,their structural and physical properties through the X‐ray diffraction,Raman spectroscopy,magnetic and transports measurements.Selective area electron diffraction(SAED)patterns and X‐ray diffraction of cleavage piece confirm the growth of single crystals in(h0l)orientations.Observations of phonon vibration modes(A_(1g) and B_(1g))in Raman spectroscopy measurements mark the qualitative analysis of these single crystals.Low temperature magnetic and electrical transport studies manifest the superconducting nature of both single crystals.
