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Cooperative elastic fluctuations provide tuning of the metal-insulator transition 

Guzmán Verri, Gian Giacomo (2019)
Metal-to-insulator transitions driven by strong electronic correlations occur frequently in condensed matter systems, and are associated with remarkable collective phenomena in solids, including superconductivity and ...
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Do Magnetic Fields Destroy Black Hole Accretion Disk g-Modes? 

Ortega Rodríguez, Manuel; Solís Sánchez, Hugo; Arguedas Leiva, José Agustín; Wagoner, Robert V.; Levine, Adam (2015-08-04)
Diskoseismology, the theoretical study of normal-mode oscillations in geometrically thin, optically thick accretion disks, is a strong candidate for explaining some quasi-periodic oscillations in the power spectra of many ...
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Stochastic approach to the smart quantum confinement model in porous silicon 

Ramírez Porras, Arturo; Weisz, S. Z. (Surface Science 515 (2002) L509-L513, 2002)
A model that encompasses two approaches to explain the photoluminescence in p-type porous silicon is proposed. The model considers a stochastic distribution of nanocrystallite sizes within the porous matrix and explain the ...

Exact solution of an ekpyrotic fluid and a primordial magnetic field in an anisotropic cosmological space-time of Petrov D 

Alvarado Marín, Rodrigo Eduardo (2017)
This document obtained and analyzed an exact solution of an ekpyrotic fluid (P = 5/3 µ) and a primordial magnetic field, so that the latter does not induce currents or electric fields. It is determined that the main role, ...

Vacuum treatment to stabilize oxidation at low temperature region in porous silicon 

Allen, Kevin; Pereira Cubillo, Juan Sebastián; Ramírez Porras, Arturo (2020)
Oxidation in porous silicon is studied for as-etched samples and samples subjected to high vacuum at room temperature. Attenuated Total Reflectance (ATR) measurements in infrared spectroscopy for temperatures ranging from ...
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Estimation of Silicon Nanocrystalline Sizes from Photoluminescence Measurements of RF Co-Sputtered Si/SiO2 Films 

Ramírez Porras, Arturo; Fonseca, L. F.; Resto, O. (Materials Research Society Symposium Proceedings 737 (2003), 2003)
A stochastic distribution of nanocrystalline sizes model is applied to fit photoluminescence (PL) spectra of luminescent Si nanocrystals in a Si/SiO2 matrix synthesized by RF co-sputtering on the top of quartz substrates. ...
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Random Electric Field Instabilities of Relaxor Ferroelectrics 

Guzmán Verri, Gian Giacomo; Arce Gamboa, José Rafael (2017-06-13)
Relaxor ferroelectrics are complex oxide materials which are rather unique to study the effects of compositional disorder on phase transitions. Here, we study the effects of quenched cubic random electric fields on the ...
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Structure factor of a relaxor ferroelectric 

Guzmán Verri, Gian Giacomo; Varma, Chandra M. (2015-04-14)
We study a minimal model for a relaxor ferroelectric including dipolar interactions, and short-range harmonic and anharmonic forces for the critical modes as in the theory of pure ferroelectrics together with quenched ...
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Exact Solutions of a Chaplygin Gas in an Anisotropic Space-Time of Petrov D 

Alvarado Marín, Rodrigo Eduardo (2017)
This document obtains two exact solutions to the anisotropic spacetime of Petrov D by using the model of a perfect fluid. These solutions represent a scenario of a universe in which the pressure P and the energetic density ...
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Quantum Ferroelectric Instabilities in Superconducting SrTiO3 

Arce Gamboa, José Rafael; Guzmán Verri, Gian Giacomo (2018)
We examine the effects of strain and cation substitution on the superconducting phase of polar semiconductors near a ferroelectric quantum phase transition with a model that combines a strong coupling theory of ...
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AuthorGuzmán Verri, Gian Giacomo (12)Jenkins Villalobos, Alejandro (7)Ramírez Porras, Arturo (7)Alvarado Marín, Rodrigo Eduardo (4)Alfaro Martínez, Eric J. (3)Alicki, Robert (3)Hidalgo León, Hugo G. (3)Littlewood, Peter B. (3)Weisz, S. Z. (3)a28979f1-db4b-4d47-846a-844409ba6feb (2)... View MoreTypeartículo científico (35)tesis de maestría (5)capítulo de libro (4)info:eu-repo/semantics/conferenceObject (4)Objeto de conferencia (4)patente (2)preprint (2)tesis de licenciatura (2)info:eu-repo/semantics/acceptedVersion (1)ProcedenceVicerrectoría de Investigación (41)Vicerrectoría de Docencia (26)... View MoreHas File(s)Yes (47)No (7)

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