119 citations · 477 across the 14 of their papers we have counts for
14 papers
Real-space renormalization group method for quantum 1/2 spins on the pyrochlore lattice
Angel J. Garcia-Adeva
A simple phenomenological real-space renormalization group method for quantum Heisenberg spins with nearest and next nearest neighbour interactions on a pyrochlore lattice is prese…
The finite element method applied to the study of two-dimensional photonic crystals
Imanol Andonegui, Angel J. Garcia-Adeva
Calculations of the photonic band structure, transmission coefficients, and quality factors of various two-dimensional, periodic and aperiodic, dielectric photonic crystals by usin…
Upconversion cooling of Er-doped low-phonon fluorescent solids
Angel J. Garcia-Adeva, Rolindes Balda, Joaquin Fernandez
We report on a novel mechanism for laser cooling of fluorescent solids based on infrared-to-visible upconversion often found in rare-earth-doped low-phonon materials. This type of…
Spectroscopy, upconversion dynamics, and applications of Er3+-doped low-phonon materials
Angel J. Garcia-Adeva
In this work I summarize some of the recent work carried out by our group on the upconversion dynamics of Er3+-doped potassium lead halide crystals, which possess very small phonon…
Anti-Stokes laser cooling in bulk Erbium-doped materials
Joaquin Fernandez, Angel J. Garcia-Adeva, R. Balda
We report the first observation of anti-Stokes laser-induced cooling in the Er^{3+}:KPb_{2}Cl_{5} crystal and in the Er^{3+}:CNBZn (CdF_{2}-CdCl_{2}-NaF-BaF_{2}-BaCl_{2}-ZnF_{2}) g…
Correlated and uncorrelated nanoscale heterogeneities in L1_0 solid solutions and their signatures from local and extended probes
Rafael C. Howell, Steven D. Conradson, Angel J. Garcia-Adeva
The phase coexistence of chemically ordered L1_0 and chemically disordered structures within binary alloys is investigated, using the NiMn system as an example. Theoretical and num…