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Browsing by Author "Muñoz, A."

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Browsing by Author "Muñoz, A."

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    A theoretical study of the Pnma and R3m phases of Sb2S3, Bi2S3, and Sb2Se3 
    Da Silva, Estelina Lora; Skelton, J. M.; Rodríguez-Hernández, P.; Muñoz, A.; Santos, M. C.; Martínez-García, D.; Vilaplana Cerda, Rosario Isabel; Manjón, Francisco-Javier (The Royal Society of Chemistry, 2022-10-20)
    [EN] We report a comparative theoretical study of the Pnma and R3m phases of Sb2S3, Bi2S3, and Sb2Se3 close to ambient pressure. Our enthalpy calculations at 0 K show that at ambient pressure the R3m (tetradymite-like) ...
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    Chemical pressure effects on the spectroscopic properties of Nd3+-doped gallium nano-garnets 
    Monteseguro, V.; Rathaiah, M.; Linganna, K.; Lozano-Gorrin, A. D.; Hernandez-Rodriguez, M. A.; Martin, I. R.; Babu, P.; Rodriguez-Mendoza, U. R.; Manjón, Francisco-Javier; Muñoz, A.; Jayasankar, C. K.; Venkatramu, V.; Lavin, V. (The Optical Society, 2015-08-01)
    [EN] Nd3+-doped RE3Ga5O12 (RE = Gd, Y, and Lu) nano-crystalline garnets of 40-45 nm in size have been synthesized by a sol-gel method. With the decrease of the RE atom size, the chemical pressure related to the decreasing ...
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    Experimental and theoretical study of α–Eu2(MoO4)3 under compression 
    Guzmán-Afonso, C.; León-Luis, S.F.; Sans-Tresserras, Juan Ángel; González -Silgo, C.; Rodríguez-Hernández, Plácida; Radescu, S.;  Muñoz, A.; López-Solano, J.; Errandonea, D.; Manjón, F.J.; Rodríguez-Mendoza, U.R.;  Lavín, V. (IOP Publishing, 2015-11-25)
    The compression process in the α-phase of europium trimolybdate was revised employing several experimental techniques. X-ray diffraction (using synchrotron and laboratory radiation sources), Raman scattering and ...
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    Joint experimental and theoretical study of bulk Y2O3 at high pressure 
    Pereira, A.L.J.; Sans-Tresserras, Juan Ángel; Gomis, O.; Santamaría-Pérez, D.; Ray, S.; Rodríguez-Hernández, P.; Godoy-Jr., A.; da Silva-Sobrinho, A.S.; Muñoz, A.; Popescu, C.; Manjón, Francisco-Javier (Elsevier, 2023-06)
    [EN] We report a joint experimental and theoretical study of the structural and vibrational properties of C-type bulk Y2O3 under hydrostatic compression. The combination of high-pressure X-ray diffraction and Raman scattering ...
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    Lattice dynamics study of (Gd1-xYbx)(2)O-3(x=0.11) at high pressure 
    Marí-Guaita, Julia; Gallego-Parra, Samuel; Sans-Tresserras, Juan Ángel; Velázquez, M.; Veber, Phillipe; Rodríguez-Hernández, P.; Manjón, Francisco-Javier; Muñoz, A. (Elsevier, 2021-08-05)
    [EN] In this study, we report an experimental investigation of (Gd1-xYbx)(2)O-3 under high pressure by means of Raman scattering measurements complemented with ab initio calculations in pure Gd2O3. Raman spec-troscopy of ...
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    Optical absorption of defect chalcopyrite and defect stannite ZnGa2Se4 under high pressure 
    Gomis, O.; Vilaplana Cerda, Rosario Isabel; Pérez-González, E.; Ruiz-Fuertes, J.; Rodríguez-Hernández, P.; Muñoz, A.; Errandonea, D.; Segura. A.; Santamaría-Pérez, D.; Alonso-Gutiérrez, P.; Sanjuan, M.L.; Tiginyanu, I.M.; Ursaki, V.V.; Manjón, Francisco-Javier (Elsevier, 2023-04-05)
    [EN] Optical absorption measurements at high pressure have been performed in two phases of the ordered -vacancy compound (OVC) ZnGa2Se4: defect stannite (DS) and defect chalcopyrite (DC). The direct bandgap energy of both ...
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    Pressure-Driven Symmetry-Preserving Phase Transitions in Co(IO3)(2) 
    Liang, A.; Popescu, C.; Manjón, Francisco-Javier; Turnbull, R.; Bandiello, E.; Rodriguez-Hernandez, P.; Muñoz, A.; Yousef, I.; Hebboul, Z.; Errandonea, D. (American Chemical Society, 2021-08-12)
    [EN] High-pressure synchrotron X-ray diffraction studies of cobalt iodate, Co(IO3)(2), reveal a counterintuitive pressure-induced expansion along certain crystallographic directions. High-pressure Raman and infrared ...
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    Pressure-induced phase transition and increase of oxygen-iodine coordination in magnesium iodate 
    Liang, A.; Turnbull, R.; Popescu, C.; Manjón, Francisco-Javier; Bandiello, Enrico; Rodríguez-Hernández, P.; Muñoz, A.; Yousef, I.; Hebboul, Z.; Errandonea, D. (AMERICAN PHYSICAL SOCIETY, 2022-02-17)
    [EN] The structural and vibrational behavior of Mg(IO3)(2) under compression has been investigated via a combination of high-pressure (HP) synchrotron x-ray diffraction (XRD), Raman scattering, and infrared spectroscopy ...
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    Structural, vibrational and electronic properties of alpha'-Ga2S3 under compression 
    Gallego-Parra, Samuel; Vilaplana Cerda, Rosario Isabel; Gomis, O.; Lora da Silva, E.; Otero-de-la-Roza, A.; Rodríguez-Hernández, P.; Muñoz, A.; González, J.; Sans-Tresserras, Juan Ángel; Cuenca-Gotor, Vanesa Paula; Ibáñez, J.; Popescu, C.; Manjón, Francisco-Javier (The Royal Society of Chemistry, 2021-03-21)
    [EN] We report a joint experimental and theoretical study of the low-pressure phase of ¿¿-Ga2S3 under compression. Theoretical ab initio calculations have been compared to X-ray diffraction and Raman scattering measurements ...