In this work, we focus on the study of the structural and elastic properties of mercury digallium selenide (HgGa2Se4) which belongs to the family of AB 2 X 4 ordered-vacancy compounds with tetragonal defect chalcopyrite ...
Gallego-Parra, Samuel; Vilaplana Cerda, Rosario Isabel; Gomis, O.; Rodríguez-Hernández, Plácida; Muñoz, Alfonso; González, Jesus Antonio; Sans-Tresserras, Juan Ángel; Popescu, Catalin; Manjón, Francisco-Javier(American Chemical Society, 2022-07-12)
[EN] The synthesis of polymorphs of alpha '-Ga2S3 at room temperature on compression/decompression is studied from a joint experimental and theoretical point of view to reveal the nature of their crystalline structures. ...
Pereira, Andre L. J.; Sans Tresserras, Juan Ángel; Vilaplana Cerda, Rosario Isabel; Gomis, O.; Manjón Herrera, Francisco Javier; Rodriguez-Hernandez, Placida; Muñoz, Alfonso; Popescu, Catalin; Beltran, Armando(American Chemical Society, 2014-10-09)
We report a joint experimental and theoretical study of the structural and vibrational properties of synthetic sphaerobismoite (beta-Bi2O3) at high pressures in which room-temperature angle-dispersive X-ray diffraction ...
This work reports an experimental and theoretical lattice dynamics study of
nanocrystalline Y3Ga5O12 (YGG) garnet at high pressures. Raman scattering measurements in
nanocrystalline Tm3+-doped YGG garnet performed up to ...
Compression of arsenolite has been studied from a joint experimental and theoretical point of view. Experiments on this molecular solid at high pressures with different pressure-transmitting media have been interpreted ...
Cuenca-Gotor, Vanesa Paula; Sans-Tresserras, Juan Ángel; Gomis, O.; Mujica, Andres; Radescu, Silvana; Muñoz, Alfonso; Rodríguez-Hernández, Plácida; Da Silva, Estelina Lora; Popescu, Catalin; Ibañez, Jordi; Vilaplana Cerda, Rosario Isabel; Manjón, Francisco-Javier(The Royal Society of Chemistry, 2020-02-14)
[EN] We report a joint experimental and theoretical study of the structural, vibrational, and electronic properties of layered monoclinic arsenic sulfide crystals (a-As2S3), aka mineral orpiment, under compression. X-ray ...
García-Domene, B.; Sans Tresserras, Juan Ángel; Gomis, O.; Manjón Herrera, Francisco Javier; Ortiz, H. M.; Errandonea, Daniel; Santamaría Pérez, David; Martinez-Garcia, D.; Vilaplana Cerda, Rosario Isabel; Pereira, A. L. J.; Morales-Garcia, A.; Rodríguez Hernández, Plácida; Muñoz, Alfonso; Popescu, Catalin; Segura, A.(American Chemical Society, 2014-09-04)
High-pressure powder X-ray diffraction and Raman scattering measurements in cubic bixbyite-type indium oxide (c-In2O3) have been performed at room temperature. On increasing pressure c-In2O3 undergoes a transition to the ...
Santamaría Pérez, David; Bandiello, Enrico; Errandonea, Daniel; Ruiz-Fuertes, Javier; Gomis Hilario, Oscar; Sans, Juan Ángel; Manjón Herrera, Francisco Javier; Rodríguez-Hernández, Plácida; Muñoz, Alfonso(American Chemical Society, 2013-06-13)
We have performed an experimental study of the crystal structure, lattice dynamics, and optical properties of silver chromate (Ag2CrO4) at ambient temperature and high pressures. In particular, the crystal structure, ...
Pereira, A. L. J.; Gomis, O.; Sans, J. A.; Pellicer-Porres, J.; Manjón Herrera, Francisco Javier; Beltran, A.; Rodríguez-Hernández, Plácida; Muñoz, Alfonso(IOP Publishing: Hybrid Open Access, 2014-06)
We report an experimental and theoretical high-pressure study of the vibrational properties of synthetic monoclinic bismuth oxide (alpha-Bi2O3), also known as mineral bismite. The comparison of Raman scattering measurements ...
[EN] The high-pressure behavior of technologically important visible-light photocatalytic semiconductor In.NbO4, adopting a monoclinic wolframite-type structure at ambient conditions, was investigated using synchrotron-based ...
[EN] This joint experimental and theoretical study of the structural and vibrational properties of beta-In2S3 upon compression shows that this tetragonal defect spinel undergoes two reversible pressure-induced order¿disorder ...
Vilaplana Cerda, Rosario Isabel; Gomis Hilario, Oscar; Manjón Herrera, Francisco Javier; Rodríguez-Hernández, P.; Muñoz, Alfonso; Errandonea, Daniel; Achary, S.N.; Tyagi, A.K.(American Institute of Physics (AIP), 2012-11-21)
High-pressure Raman scattering measurements have been performed in wulfenite (PbMoO4) for both bulk and nanocrystalline powders up to 22 GPa. Our Raman scattering measurements evidence the phase transition from the tetragonal ...
Sans Tresserras, Juan Ángel; Santamaría Pérez, David; Popescu, Catalin; Gomis, O.; Manjón Herrera, Francisco Javier; Vilaplana Cerda, Rosario Isabel; Muñoz, Alfonso; Rodríguez Hernández, Plácida; Ursaki, Veacheslav; Tiginyanu, Ivan(American Chemical Society, 2014-07-17)
The behavior of defect chalcopyrite CdAl2S4 at high pressures and ambient temperature has been investigated in a joint experimental and theoretical study. High-pressure X-ray diffraction and Raman scattering measurements ...
[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 ...
Santamaría Pérez, David; Gomis, O.; Pereira, A. L. J.; Vilaplana Cerda, Rosario Isabel; Popescu, Catalin; Sans Tresserras, Juan Ángel; Manjón Herrera, Francisco Javier; Rodríguez Hernández, Plácida; Muñoz, Alfonso; Ursaki, Vladislav V.; Tiginyanu, Ion M.(American Chemical Society, 2014-11-20)
We report a comprehensive experimental and theoretical study of the structural and vibrational properties of a-CdIn2Se4 under compression. Angle-dispersive synchrotron X-ray diffraction and Raman spectroscopy evidence that ...
Pereira, A. L. J.; Errandonea, Daniel; Beltrán, A.; Gracia, L.; Gomis Hilario, Oscar; Sans, J. A.; García-Domene, B.; Miquel-Veyrat, A.; Manjón Herrera, Francisco Javier; Muñoz, Alfonso; Popescu, Catalin(IOP Publishing: Hybrid Open Access, 2013-11-27)
An experimental and theoretical study of the structural properties of monoclinic bismuth oxide (alpha-(BiO3)-O-2) under high pressures is here reported. Both synthetic and mineral bismite powder samples have been compressed ...
[EN] The structural and vibrational properties of nanocrystalline yttrium orthoaluminate perovskite (YAlO3) under compression have been experimentally studied. Experimental results have been compared to ab initio simulations ...
Ibáñez, Jordi; Sans-Tresserras, Juan Ángel; Popescu, Catalin; López-Vidrier, J.; Elvira-Betanzos, J.J.; Cuenca Gotor, Vanesa Paula; Gomis, O.; Manjón Herrera, Francisco Javier; Rodríguez-Hernández, P.; Muñoz, Alfonso(American Chemical Society, 2016-04)
Antimony trisulfide (Sb2S3), found in nature as the mineral stibnite, has been studied under compression at room temperature from a joint experimental and theoretical perspective. X-ray diffraction and Raman scattering ...
[EN] In this work we study the pressure behaviour of the orpiment (monoclinic) and anorpiment (triclinic) layered structures of As2S3 by means of ab initio calculations performed within the density functional theory, as ...
Venkatramu, Vemula; León-Luis, Sergio F.; Rodriguez-Mendoza, Ulises R.; Monteseguro, Virginia; Manjón, Francisco J.; Lozano-Gorrín, Antonio D.; Valiente, Rafael; Navarro-Urrios, Daniel; Jayasankar, C.K.; Muñoz, Alfonso; Lavin, Victor(Royal Society of Chemistry, 2012)
A novel Y3(1-x)Er3xGa5O12 nanocrystalline garnet has been synthesized by a sol-gel technique and a complete structural, morphological, vibrational, and optical characterization has been carried out in order to correlate ...