ListarDivisión de Nanociencias y Materiales por tema "FÍSICA"
Mostrando ítems 21-40 de 158
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Controlled growth of one-dimensional clusters of molybdenum atoms using double-walled carbon nanotube templating
(2009)"We report the controlled growth of one-dimensional clusters of molybdenum atoms inside the inner cores of double-walled carbon nanotubes. A combined characterization including high resolution transmission electron microscopy, ... -
Crystalline texture of cobalt nanowire arrays probed by the switching field distribution and FORC diagrams
(IOP, 2023)The crystalline texture of arrays of low diameter Co nanowires (NWs) synthesized by electrodeposition using electrolytes with different acidities (pH in the range 2.0–6.6) was studied by the switching field distribution ... -
Curved nanostructured materials
(IOP Publishing, 2003)"Graphite is a layered material that is very flexible, in which each layer is able to curve in order to form cages, nanotubes, nanocoils, nanocones, etc. In this paper, we demonstrate that various synthetic routes are ... -
Cyclotomy and Ramanujan sums in quantum phase locking
(2003)"Phase-locking governs the phase noise in classical clocks through effects described in precise mathematical terms. We seek here a quantum counterpart of these effects by working in a finite Hilbert space. We use a coprimality ... -
Degradación enzimática de nanotubos de carbono dopados con nitrógeno
(2017)"Es bien conocido que a la fecha la toxicidad de los nanotubos de carbono aún no está bien estudiada. Muy recientemente se estableció que los nanotubos de carbono llamados MWCNT-7 sean clasificados como posiblemente ... -
Design of graphene electronic devices using nanoribbons of different widths
(2009-10)"We present a simple design of a field effect transistor based on graphene nanoribbons, taking advantage of the metallic and semiconductor nature of nanoribbons with different widths. Such device could be constructed by ... -
Diameter-selective separation of double-walled carbon nanotubes
(2008-12)"Here, we report a simple and effective way of separating double-walled carbon nanotubes as a function of their diameter using individually dispersed nanotube solutions with the aid of long and random single-stranded DNA. ... -
Dibenzothiophene adsorption at boron doped carbon nanoribbons studied within density functional theory
(2015-07)"The adsorption of dibenzothiophene (DBT) on bare and boron-doped armchair carbon nanoribbons (ACNRs) is being investigated in the framework of the density functional theory by implementing periodic boundary conditions ... -
Efecto magnetocalórico en cintas de los compuestos intermetálicos RNi2 (R= Tb, Dy, Ho, Er) y RAl2 (R= Tb, Dy, Er) obtenidas por solidificación rápida
(2017)"Varios compuestos intemetálicos en los sistemas binarios RNi2 y RAl2 (R= tierra rara) presentan buenas propiedades magnetocalóricas en el rango de temperatura entre 10 y 80 K, lo que permite su utilización como sustancias ... -
Efecto magnetocalórico en cintas obtenidas por enfriamiento ultrarrápido del compuesto intermetálico DyNi2
(2013)"The magnetocaloric (MC) properties of Laves phases have been extensively investigated in the last fifteen years. Several intermetallic compounds in the RCo2, RAl2, and RNi2 systems (R= rare earth), shows good MC properties ... -
Effect of an electric field within microscopy focused ion beam (FIB) between manipulator sharp and the ion trap of the electron detector
(2011)"The manipulation of samples with micro manipulators sharps in the normal axis to the observation plane is practically blind in microscopy focused ion beam (FIB) mono beam. The application of a negative potential to the ... -
Effect of packing on the cohesive and electronic properties of methanofullerene crystals
(2008-07)"The crystal structure, cohesive energy, and electronic properties of bulk phases of the fullerene derivative [6, 6]-phenyl-C(61)-butyric-acid-methyl-ester (PCBM) have been calculated using ab initio density-functional ... -
Effect of the anchoring strength on the phase behaviour of discotic liquid crystals under face-on confinement
(IOP Publishing, 2019)"In this study we have performed molecular dynamics simulations to study a Gay-Berne discotic fluid confined in a slab geometry for a fixed confinement length. Four different anchoring strengths with a homeotropic (face-on) ... -
El desarrollo de la Física en San Luis Potosí Parte 2: de la fundación de la Escuela e Instituto de Física a la actualidad
(Sociedad Mexicana de Física, 2020) -
El desarrollo de la Física en San Luis Potosí Parte I: de la época colonial a la institucionalización de la física
(Sociedad Mexicana de Física, 2020) -
Elastocaloric and magnetocaloric effects in Ni-Mn-Sn(Cu) shape-memory alloy
(2013-02)"We have studied magnetocaloric and elastocaloric properties of a Ni-Mn-Sn(Cu) metamagnetic shape-memory alloy undergoing a magneto-structural transition (martensitic type) close to room temperature. Changes of entropy ... -
Elastocaloric effect in Ti-Ni shape-memory wires associated with the B2 ↔ B19' and B2 ↔ R structural transitions
(2016-02)"We have studied the elastocaloric properties of Ti-Ni shape-memory wires subjected to specific heat treatments to decouple the B2 <-> R transition from the B2 <-> B19' one. The entropy values at moderate stresses (similar ... -
Energetics and the magnetic state of Mn2 adsorbed on Au(111): Dimer bond distance dependence
(Elsevier, 2016)"In this work we present a theoretical study of the adsorption Mn2 dimer on the Au(111) surface. Here we use the density functional theory to construct a map of adsorption energies, EA, of Mn2 on a Au(111) surface as a ... -
Enhanced refrigerant capacity and magnetic entropy flattening using a two-amorphous FeZrB(Cu) composite
(2011-12)"The temperature dependence of the isothermal magnetic entropy change, Delta S-M, and the magnetic field dependence of the refrigerant capacity, RC, have been investigated in a composite system xA + (1 - x) B, based on ... -
Enhanced refrigerant capacity in Gd-Al-Co microwires with a biphase nanocrystalline/amorphous structure
(2016-02)"A class of biphase nanocrystalline/amorphous Gd(50+5x)Al(30-5x)Co20 (x = 0, 1, 2) microwires fabricated directly by melt-extraction is reported. High resolution transmission electron microscopy and Fourier function transform ...