Abstract
We have carried out density and small-angle x-ray scattering measurements on a typical liquid chalcogen (Te, Se) system to investigate its continuous liquid-liquid phase transition. With increasing temperature, the zero-wave-number structure factor $S(0)$ shows a maximum in the middle of the transition region where the density exhibits negative thermal expansion. This is direct evidence of density fluctuations induced by the liquid-liquid phase transition. When the sample is pressurized to 100 MPa, the density and $S(0)$ curves shift to the lower temperature side, which is consistent with the shift of the structural transition. We discuss the similarity between liquid Te and liquid water from the viewpoint of fluctuations induced by the liquid-liquid transition.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
