Archivo de la categoría: HRTEM

ICMM Days

The Materials Science Institute of Madrid organized an internal meeting in Buitrago del Lozoya for a bbrief presentation of the different research groups and services. Here is the presentation from our group of Nanocharacterization of Materials (Nanocarma)

Publicado en Gallery, HRTEM, ion irradiation, laser irradiation, microscopy, nanocharacterization, nanoscience, nanotechnology, People, Publications, Raman spectroscopy, Sin categoría, transition metal oxides | Etiquetado , , , , , , , , , | Comentarios desactivados en ICMM Days

Insights into the Synthesis Parameters Effects on the Structural, Morphological, and Magnetic Properties of Copper Oxide Nanoparticles

The present study aims at the integration of the “oxalic conversion” route into “green chemistry” for the synthesis of copper oxide nanoparticles (CuO-NPs) with controllable structural, morphological, and magnetic properties. Two oxalate-containing precursors (H2C2O4.2H2O and (NH4)2C2O4.H2O) and different volume ratios … Sigue leyendo

Publicado en HRTEM, Publications | Comentarios desactivados en Insights into the Synthesis Parameters Effects on the Structural, Morphological, and Magnetic Properties of Copper Oxide Nanoparticles

Transition from AFM Spin Canting to Spin Glass–AFM Exchange as Particle Size Decreases in LaFeO3

In this work, we have studied structural and magnetic properties of LaFeO3 as a function of the particle size d, from bulk (d >> 1 μm) to nanoscale (d ≈ 30 nm). A large number of twins were observed for … Sigue leyendo

Publicado en HRTEM, Publications, transition metal oxides | Comentarios desactivados en Transition from AFM Spin Canting to Spin Glass–AFM Exchange as Particle Size Decreases in LaFeO3

TEM study of ∼PbCr2S4 columnar misfit phases

The disordered structure of the columnar misfit ​∼ ​PbCr2S4 phase (∼ character indicates that it is close to the stoichiometric composition but slightly away) has been revealed by means of transmission electron microscopy (TEM) varied techniques such as selected area electron diffraction … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization | Comentarios desactivados en TEM study of ∼PbCr2S4 columnar misfit phases

Coexistence of Two Spin Frustration Pathways in the Quantum Spin Liquid Ca10Cr7O28

Kagome antiferromagnetic lattices are of high interest because the geometric frustration is expected to give rise to highly degenerated ground states that may host exotic properties such as quantum spin liquid (QSL). Ca10Cr7O28 has been reported to display all the … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization, nanoscience, Publications, transition metal oxides | Comentarios desactivados en Coexistence of Two Spin Frustration Pathways in the Quantum Spin Liquid Ca10Cr7O28

New Order in (BiS)1.19(Bi1/3Cr2S4) Misfit Layer Compound

A. Gómez‐Herrero, A. R. Landa‐Cánovas and L. C. Otero‐Díaz, “New Order in (BiS)1.19(Bi1/3Cr2S4) Misfit Layer Compound,” Z. Anorg. Allg. Chem. 647, 1–7 (2021). In a sample with nominal composition BiCr2S5 a new misfit layer compound has been synthesized and studied … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization, Publications, Sin categoría | Etiquetado , | Comentarios desactivados en New Order in (BiS)1.19(Bi1/3Cr2S4) Misfit Layer Compound

Nanostructural changes upon substitutional Al doping in ZnO sputtered films

A. R. Landa-Cánovas, J. Santiso, F. Agulló-Rueda, P. Herrero, E. Navarrete-Astorga, E. Ochoa-Martínez, J. R. Ramos-Barrado, and M. Gabás, “Nanostructural changes upon substitutional Al doping in ZnO sputtered films,” Ceram. Int. 45, 6319–6327 (2019). Al:ZnO layers, with low and high … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization, nanoscience, Publications, Raman spectroscopy, transparent conductive oxides, zinc oxide | Etiquetado , , , , , , , , | Comentarios desactivados en Nanostructural changes upon substitutional Al doping in ZnO sputtered films

Characterization of the interface between highly conductive Ga:ZnO films and the silicon substrate

Work in collaboration with the Nanotech Unit, Department of Applied Physics I, University of Malaga, Spain. M. Gabás, E. Ochoa-Martínez, E. Navarrete-Astorga, A. R. Landa-Cánovas, P. Herrero, F. Agulló-Rueda, S. Palanco, J. J. Martínez-Serrano, and J. R. Ramos-Barrado, “Characterization of … Sigue leyendo

Publicado en HRTEM, microscopy, nanocharacterization, nanoscience, nanotechnology, Publications, transparent conductive oxides, zinc oxide | Etiquetado , , , , , , , | Comentarios desactivados en Characterization of the interface between highly conductive Ga:ZnO films and the silicon substrate

Study of the formation mechanism of hierarchical silicon structures produced by sequential ion beam irradiation and anodic etching

In a collaboration with the Autonomous University of Madrid (Department of Applied Physics and the Center for Micro Analysis of Materials) and the Institut für Solarenergieforschung Hameln (ISFH) of Germany we have studied the formation of micropatterns combining nanostructured (porous) … Sigue leyendo

Publicado en HRTEM, ion irradiation, microscopy, nanocharacterization, nanoscience, nanotechnology, Raman spectroscopy, silicon | Etiquetado , , , , , , | Comentarios desactivados en Study of the formation mechanism of hierarchical silicon structures produced by sequential ion beam irradiation and anodic etching

Laser heating induced phase changes of VO2

P. Vilanova-Martínez, J. Hernández-Velasco, A. R. Landa-Cánovas, and F. Agulló-Rueda, “Laser heating induced phase changes of VO2 crystals in air monitored by Raman spectroscopy,” J. Alloys Comp. 661, 122–125 (2016)

Publicado en HRTEM, Publications, Raman spectroscopy, Sin categoría | Etiquetado , , , , , , , | Deja un comentario