[EN] 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 ...[+]
[EN] 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 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 corundum-type In2O3 is discussed.[-]
info:eu-repo/grantAgreement/MINECO//MAT2013-46649-C4-2-P/ES/OXIDOS METALICOS ABO3 EN CONDICIONES EXTREMAS/ info:eu-repo/grantAgreement/MINECO//MAT2015-71070-REDC/ES/MATERIA A ALTA PRESION. MALTA-CONSOLIDER TEAM/ info:eu-repo/grantAgreement/MINECO//RYC-2015-17482/ES/RYC-2015-17482/ info:eu-repo/grantAgreement/MINECO//MAT2016-75586-C4-2-P/ES/COMPUESTOS ABO3 Y A2X3 EN CONDICIONES EXTREMAS DE PRESION Y TEMPERATURA/
Description:
This is an author-created, un-copyedited versíon of an article published in [insert name of journal]. IOP Publishing Ltd is not responsíble for any errors or omissíons in this versíon of the manuscript or any versíon derived from it. The Versíon of Record is available online at http://doi.org/10.1088/1361-6528/aa6a3f.
Thanks:
The authors thank the financial support of the Spanish Ministerio de Economia y Competitividad (MINECO), the Spanish Research Agency (AEI), and the European Fund for Regional Development (FEDER) under Grants No. ...[+]
The authors thank the financial support of the Spanish Ministerio de Economia y Competitividad (MINECO), the Spanish Research Agency (AEI), and the European Fund for Regional Development (FEDER) under Grants No. MAT201675586-C4-1/2/3-P, No. MAT2013.46649-C4-1/2/3-P and No. MAT2015-71070-REDC (MALTA Consolider). A M and P R-H acknowledge computing time provided by Red Espanola de Supercomputacion (RES) and MALTA-Cluster. J A S acknowledges financial support through the Ramon y Cajal fellowship (RYC-2015-17482).[-]