Debye temperature of CaO under high pressure up to 65.2 GPa

High pressure structural studies on Nb5Si3 up to 26.2 GPa

Ab initio investigation of CaO-ZnO alloys under high pressure

Ca(x)Zn(1-x)O alloys are potential candidates to achieve wide band-gap, which might significantly promote the band gap engineering and heterojunction design. We performed a crystal structure search for CaO-ZnO system under pressure, using an ab initio evolutionary algorithm implemented in the USPEX code. Four stable ordered Ca(x)Zn(1-x)O structures are found in the pressure range of 8.7-60 GPa....

Test of the Einstein-Debye relation in supercooled dibutylphthalate at pressures up to 1.4 GPa.

Broadband dielectric measurements were carried out on di-n-butyl phthalate (DBP) under isothermal conditions at hydrostatic pressures up to 1.6 GPa. A comparison of the dielectric relaxation times with the viscosity revealed that no breakdown of the Einstein-Debye relation is induced by high compression. This absence of any decoupling is attributed to the weak intermolecular cooperativity of DB...

Room-temperature vibrational properties of multiferroic MnWO4 under quasi-hydrostatic compression up to 39 GPa

quasi-hydrostatic compression up to 39 GPa J. Ruiz-Fuertes, D. Errandonea, O. Gomis, A. Friedrich, and F. J. Manj on Abteilung Kristallographie, Geowissenschaften, Goethe-Universit€ at, 60438 Frankfurt am Main, Germany Departamento de F ısica Aplicada, Universitat de València, 46100 Burjassot, Valencia, Spain Centro de Tecnolog ıas F ısicas: Ac ustica, Materiales y Astrof ısica, Universitat Pol...

High pressure-temperature Raman measurements of H2O melting to 22 GPa and 900 K.

The melting curve of H(2)O has been measured by in situ Raman spectroscopy in an externally heated diamond anvil cell up to 22 GPa and 900 K. The Raman-active OH-stretching bands and the translational modes of H(2)O as well as optical observations are used to directly and reliably detect melting in ice VII. The observed melting temperatures are higher than previously reported x-ray measurements...