Raman-scattering measurements on NdVO4
suggest a pressure-induced zircon to monazite phase transition beyond 5.9
GPa. The monazite phase undergoes a second phase transition to a yet unknown phase at 18.1 GPa. Lattice-dynamics ...
High-pressure Raman-scattering measurements and ab initio calculations on NdVO4 have been carried out up
to 30 GPa. Our combined experimental and theoretical study confirms that beyond 5.9 GPa NdVO4 undergoes
an irreversible ...
Errandonea, D.; Manjón Herrera, Francisco Javier; Muñoz, A.; Rodríguez-Hernández, P.; Panchal, V.; Achary, S. N.; Tyagi, A. K.(Elsevier, 2013-11-15)
Raman measurements on TbVO4 show the occurrence of three pressure-induced phase transitions. The first one, an irreversible transition from the zircon to the scheelite structure, occurs beyond 6.7 GPa. In addition, two ...
We report results of experimental and theoretical lattice-dynamics studies on scandium orthovanadate up to 35 GPa. Raman-active modes of the low-pressure zircon phase are measured up to 8.2 GPa, where the onset of an ...
HgWO 4 at ambient pressure is characterized using a combination of ab initio calculations, X-ray diffraction and Raman scattering measurements. The effect of low pressure and temperature on the structural stability is ...
[EN] This paper reports an experimental and theoretical investigation on the electronic structure of bismuth selenide (Bi2Se3) up to 9 GPa. The optical gap of Bi2Se3 increases from 0.17 eV at ambient pressure to 0.45 eV ...
Panchal, V.; López Moreno, S.; Santamaría-Pérez, D.; Errandonea, D.; Manjón Herrera, Francisco Javier; Rodríguez-Hernández, P.; Muñoz, A.; Achary, S. N.; Tyagi, A. K.(American Physical Society, 2011-07-07)
X-ray diffraction and Raman-scattering measurements on cerium vanadate have been performed up to 12 and 16 GPa, respectively. Experiments reveal at 5.3 GPa the onset of a pressure-induced irreversible phase transition from ...