[EN] In the last decade internet information foraging has become a daily event for people around the world, and it is an activity that traverses so many areas of our lives, be it personal or professionally. It is important ...
Pereira, A. L. J.; Gomis, O.; Sans Tresserras, Juan Ángel; Contreras-García, J.; Manjón Herrera, Francisco Javier; Rodríguez-Hernández, P.; Muñoz, A.; Beltrán, A.(American Physical Society, 2016-06-30)
We report a joint experimental and theoretical study of the optical properties of tetragonal bismuth oxide (beta-Bi2O3) at high pressure by means of optical absorption measurements combined with ab initio electronic band ...
Undoped and Eu3+-doped cubic yttria (Y2O3) nanophosphors of good crystallinity, with selective particle sizes ranging between 6 and 37 nm and showing narrow size distributions, have been synthesized by a complex-based ...
Santamaría Pérez, David; Gomis Hilario, Oscar; Sans, Juan Ángel; Ortiz, H. M.; Vegas, Ángel; Errandonea, Daniel; Ruiz-Fuertes, Javier; Martínez-García, Domingo; García-Domene, B.; Pereira, ALJ; Manjón Herrera, Francisco Javier; Rodríguez-Hernández, Placida; Muñoz, A.; Piccinelli, F.; Bettinelli, M.; Popescu, C.(American Chemical Society, 2014-02-27)
The structural properties of calcite-type orthoborates ABO(3) (A = Al, Fe, Sc, and In) have been investigated at high pressures up to 32 GPa. They were studied experimentally using synchrotron powder X-ray diffraction and ...
We report X-ray diffraction measurements in CdIn2S4, MgIn2S4, and MnIn2S4 thiospinels at room temperature and high pressures. The pressure dependences of the structural parameters have been determined and compared to those ...
Santamaría Pérez, David; Errandonea, Daniel; Gomis, O.; Sans Tresserras, Juan Ángel; Pereira, A. L. J.; Manjón Herrera, Francisco Javier; Popescu, Catalin; Rodríguez Hernández, Plácida; Muñoz, Alfonso(American Chemical Society, 2015-03-26)
We report on high-pressure angle-dispersive X-ray diffraction data up to 27 GPa for natural MgAlBO4 sinhalite mineral and ab initio total energy calculations. The experimental bulk modulus of sinhalite is B-0 = 171(3) GPa ...
La principal motivación para realizar este proyecto, es la implantación de una tecnología que permita responder a las nuevas normativas, así como, las necesidades actuales de la sociedad. Para ello nos centraremos en el ...
[ES] El objetivo del proyecto es la implementación en planta de un automata que realice la medición y análisis de la planitud y espesor de las bielas. Este proceso actualmente se esta realizando manualmente. Automatizando ...
We have studied the effect of pressure on the structural and vibrational properties of lanthanum tritungstate
La2(WO4)3. This compound crystallizes under ambient conditions in the modulated scheelite-type structure
known ...
We have performed an experimental study of the crystal structure, lattice dynamics, and optical properties of PbCrO 4 (the mineral crocoite) at ambient and high pressures. In particular, the crystal structure, Raman-active ...
Giménez Valentín, Marcos Herminio; Salinas Marín, Isabel; Monsoriu Serra, Juan Antonio; Cuenca Gotor, Vanesa Paula; Manjón Herrera, Francisco Javier; Sans Tresserras, Juan Ángel; Gómez Tejedor, José Antonio(Editorial Universitat Politècnica de València, 2015-07-10)
[EN] In this work, we detail a new application of the use of the smartphone in the
laboratory of Physics, in order to show the students that new technologies
and the Physics’ basic principles are compatible.
From the ...
Monteseguro, V.; Rodríguez-Hernández, P.; Lavín, V.; Manjón Herrera, Francisco Javier; Muñoz, A.(American Institute of Physics (AIP), 2013-05-14)
In this paper, we present an ab initio study within the framework of density functional theory employing the generalized gradient approximation applied to the study of the structural, elastic, and electronic properties of ...
Rayón Encinas, Emilio; Moreno, R.; Alcazar, C.; Salvador Moya, Mª Dolores; Manjón Herrera, Francisco Javier; Jimenez-Pique, E.; Llanes, L.(Wiley, 2013-04)
Two commercial zirconia powders with 3mol% of yttria (TZ3YE and TZ3YS, labeled as ZE and ZS, respectively) supplied by Tosoh (Japan) were used for this study. Maximum colloidal stability for ZE was achieved by dispersing ...
[ES] El estudio de la materia sometida a condiciones extremas de presión y/o temperatura nos permite ampliar nuestros conocimientos sobre sus propiedades estructurales, elásticas, vibracionales, ópticas, eléctricas y ...
[ES] En esta memoria se detalla el estudio de la claudetita mediante espectroscopía Raman a altas presiones, que ha sido realizado en el Laboratorio de Optoelectrónica y Semiconductores del departamento de Física Aplicada ...
Achary, S. Nagabhusan; Errandonea, Daniel; Santamaría-Pérez, David; Gomis, O.; Patwe, Sadiqua J.; Manjón Herrera, Francisco Javier; Rodríguez Hernández, Plácida; Muñoz, Alfonso; Tyagi, Avesh Kumar(American Chemical Society, 2015-07-06)
We report a combined experimental and theoretical study of melilite-type germanate, Sr2ZnGe2O7, under compression. In situ high-pressure X-ray diffraction and Raman scattering measurements up to 22 GPa were complemented ...
Achary, S. N.; Errandonea, Daniel; Muñoz, Alfonso; Rodríguez Hernández, Plácida; Manjón Herrera, Francisco Javier; Krishna, P. S. R.; Patwe, S. J.; Grover, V.; Tyagi, A.(Royal Society of Chemistry, 2013)
In this work we report the metastability and the energetics of the phase transitions of three different polymorphs of BiPO4, namely trigonal (Phase-I, space group P3(1)21), monoclinic monazite-type (Phase-II, space group ...
[EN] alpha(R)-In2Se3 has been experimentally and theoretically studied under compression at room temperature by means of X-ray diffraction and Raman scattering measurements as well as by ab initio total-energy and ...
High-pressure optical absorption measurements have been performed in defect chalcopyrite HgGa2Se4 to investigate the influence of pressure on the bandgap energy and its relation with the pressure-induced order-disorder ...
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 ...