RT info:eu-repo/semantics/article
T1 Structural and Vibrational Properties of Corundum-type In2O3 Nanocrystals under Compression
A1 Sans, J.A.
A1 Vilaplana, R.
A1 Errandonea, D.
A1 Cuenca-Gotor, V.P.
A1 García-Domene, B.
A1 Popescu, C.
A1 Manjón, F.J.
A1 Singhal, A.
A1 Achary, S.N.
A1 Martínez-García, D.
A1 Pellicer-Porres, J.
A1 Rodríguez-Hernández, P.
A1 Muñoz, A.
K1 Nanocristales
K1 Difracción de rayos X
K1 Espectroscopia
K1 Alta presión
AB This work reports the structural and vibrational properties of nanocrystals of corundum-type In2O3 (rh-In2O3) at high pressures by using angle-dispersive x-ray diffraction and Raman scattering measurements up to 30 GPa. The equation of state and the pressure dependence of the Raman-active modes of the corundum phase in nanocrystals are in good agreement with previous studies on bulk material and compare nicely with theoretical simulations on bulk rh-In2O3. Nanocrystalline rh-In2O3 showed stability under compression at least up to 20 GPa, unlike bulk rh-In2O3 which gradually transforms to the orthorhombic Pbca (Rh2O3-III-type) structure above 12-14 GPa. The different stability range found in nanocrystalline and bulk In2O3 is discussed.
PB IOP Publishing
SN 28 (2017)
YR 2017
FD 2017
LK http://riull.ull.es/xmlui/handle/915/4535
UL http://riull.ull.es/xmlui/handle/915/4535
LA en
DS Repositorio institucional de la Universidad de La Laguna
RD 24-nov-2024