Ana Laura Elías
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View article: Core-shell or Janus-like Fe0.5Ni0.5 nanostructures: A theoretical and experimental study
Core-shell or Janus-like Fe0.5Ni0.5 nanostructures: A theoretical and experimental study Open
In this work, the formation FeNi bimetallic nanoparticles was investigated from an experimental and theoretical point of view. Molecular dynamics simulations were carried out in order to know the most stable arrangement of Fe and Ni atoms.…
View article: Ultralow-Concentration Pt-Decorated Carbon Sphere Catalyst for Enhanced Hydrogen Evolution Reaction
Ultralow-Concentration Pt-Decorated Carbon Sphere Catalyst for Enhanced Hydrogen Evolution Reaction Open
Ultralow decoration of platinum nanoparticles (Pt NPs) (0.32 wt %) onto carbon spheres (CS) has been developed for hybrid formation, using hydrothermal heat treatment, followed by chemical reduction of nanoparticles. The successful decorat…
View article: Induced quantum magnetism on a triangular lattice of non-Kramers ions in PrMgAl11O19
Induced quantum magnetism on a triangular lattice of non-Kramers ions in PrMgAl11O19 Open
We report the magnetic properties of the quantum triangular lattice antiferromagnet (TLAF) PrMgAl11O19 through magnetization and specific heat measurements. Strong magnetic anisotropy indicates the realization of an Ising-like magnetism in…
View article: A frustrated antipolar phase analogous to classical spin liquids
A frustrated antipolar phase analogous to classical spin liquids Open
The study of magnetic frustration in classical spin systems was motivated by the prediction and discovery of classical spin liquid states. These uncommon magnetic phases are characterized by a massive degeneracy of their ground state imply…
View article: Quasi-two-dimensional ferromagnetism in the triangular magnet EuAl$_{12}$O$_{19}$
Quasi-two-dimensional ferromagnetism in the triangular magnet EuAl$_{12}$O$_{19}$ Open
We report ferromagnetic ordering at $T_\mathrm {C}=1.3\,$K in the quasi-two dimensional magnet EuAl$_{12}$O$_{19}$ with large spins $S=7/2$. This ferromagnetic state was characterized by magnetization and specific heat measurements and the…
View article: Resonant Raman Scattering Study of Strain and Defects in Chemical Vapor Deposition Grown MoS <sub>2</sub> Monolayers
Resonant Raman Scattering Study of Strain and Defects in Chemical Vapor Deposition Grown MoS <sub>2</sub> Monolayers Open
The development of bottom‐up synthesis routes for semiconducting transition metal dichalcogenides (TMDs) and the assessment of their defects are of paramount importance to achieve their applications. TMD monolayers grown by chemical vapor …
View article: Spatial Control of Substitutional Dopants in Hexagonal Monolayer WS<sub>2</sub>: The Effect of Edge Termination (Small 6/2023)
Spatial Control of Substitutional Dopants in Hexagonal Monolayer WS<sub>2</sub>: The Effect of Edge Termination (Small 6/2023) Open
The Effect of Edge Termination In article number 2205800, Humberto Terrones, Ana Laura Elías, Mauricio Terrones, and co-workers demonstrate the importance of atomic edge termination in determining the spatial distribution of substitutional…
View article: Spatial Control of Substitutional Dopants in Hexagonal Monolayer WS<sub>2</sub>: The Effect of Edge Termination
Spatial Control of Substitutional Dopants in Hexagonal Monolayer WS<sub>2</sub>: The Effect of Edge Termination Open
The ability to control the density and spatial distribution of substitutional dopants in semiconductors is crucial for achieving desired physicochemical properties. Substitutional doping with adjustable doping levels has been previously de…
View article: Effects of post-transfer annealing and substrate interactions on the photoluminescence of 2D/3D monolayer WS<sub>2</sub>/Ge heterostructures
Effects of post-transfer annealing and substrate interactions on the photoluminescence of 2D/3D monolayer WS<sub>2</sub>/Ge heterostructures Open
Post-transfer annealing affects optical properties of monolayer WS 2 /Ge(100) 2D/3D heterostructures. Stronger van der Waals interactions change the electronic band structure of WS 2 , narrowing its gap and largely quenching the photolumin…
View article: Evolution of spectroscopy features in layered MoS<sub>x</sub>Se<sub>(2-x)</sub> solid solutions
Evolution of spectroscopy features in layered MoS<sub>x</sub>Se<sub>(2-x)</sub> solid solutions Open
In this work we report the structural and spectroscopic characterization of the bulk MoS x Se 2-x solid solutions synthesized by chemical vapor transport. The bulk crystals were analyzed by scanning electron microscopy (SEM), x-ray diffrac…
View article: Low temperature activation of inert hexagonal boron nitride for metal deposition and single atom catalysis
Low temperature activation of inert hexagonal boron nitride for metal deposition and single atom catalysis Open
Hexagonal boron nitride (hBN) has long been considered chemically inert due to its wide bandgap and robust covalent bonds. Its inertness hinders hBN from functionalization for energy conversion applications. A question arising is whether i…
View article: Spontaneous chemical functionalization via coordination of Au single atoms on monolayer MoS <sub>2</sub>
Spontaneous chemical functionalization via coordination of Au single atoms on monolayer MoS <sub>2</sub> Open
Single Au atoms on MoS 2 monolayers offer an effective way to control optical, electronic, and thermal properties of 2D materials.
View article: Monolayer Vanadium‐Doped Tungsten Disulfide: A Room‐Temperature Dilute Magnetic Semiconductor
Monolayer Vanadium‐Doped Tungsten Disulfide: A Room‐Temperature Dilute Magnetic Semiconductor Open
Dilute magnetic semiconductors (DMS), achieved through substitutional doping of spin‐polarized transition metals into semiconducting systems, enable experimental modulation of spin dynamics in ways that hold great promise for novel magneto…
View article: Superconductivity enhancement in phase-engineered molybdenum carbide/disulfide vertical heterostructures
Superconductivity enhancement in phase-engineered molybdenum carbide/disulfide vertical heterostructures Open
Significance We demonstrate that engineering of two-dimensional molybdenum carbide/disulfide heterostructures can result in superconducting architectures with higher critical temperatures than that of pristine α-Mo 2 C. We developed a gas-…
View article: SelectiveSynthesis of Bi2Te3/WS2 Heterostructureswith Strong Interlayer Coupling
SelectiveSynthesis of Bi2Te3/WS2 Heterostructureswith Strong Interlayer Coupling Open
The\nvertical integration of atomically thin-layered materials to\ncreate van der Waals heterostructures (vdWHs) has been proposed as\na method to design nanostructures with emergent properties. In this\nwork, epitaxial Bi2Te3/WS2 vdWHs\na…
View article: Monolayer Vanadium-doped Tungsten Disulfide: A Room-Temperature Dilute Magnetic Semiconductor
Monolayer Vanadium-doped Tungsten Disulfide: A Room-Temperature Dilute Magnetic Semiconductor Open
Dilute magnetic semiconductors, achieved through substitutional doping of spin-polarized transition metals into semiconducting systems, enable experimental modulation of spin dynamics in ways that hold great promise for novel magneto-elect…
View article: Carbon doping of WS <sub>2</sub> monolayers: Bandgap reduction and p-type doping transport
Carbon doping of WS <sub>2</sub> monolayers: Bandgap reduction and p-type doping transport Open
Incorporating CH-groups into WS 2 can tailor its opto-electronic properties, inducing p-type conduction and reducing its bandgap.
View article: O-Functionalized Cnt Mediated Co Hydro-Deoxygenation And Chain Growth
O-Functionalized Cnt Mediated Co Hydro-Deoxygenation And Chain Growth Open
Worldwide energy independence is reliant on the ability to leverage locally available resources for fuel production. Recently, syngas produced through gasification of carbonaceous materials provided a gateway to a host of processes for the…
View article: Optical identification of sulfur vacancies: Bound excitons at the edges of monolayer tungsten disulfide
Optical identification of sulfur vacancies: Bound excitons at the edges of monolayer tungsten disulfide Open
Bound exciton is a signature of sulfur vacancies, and thus, it can be used to investigate defects in atomically thin materials.
View article: Low temperature synthesis of heterostructures of transition metal dichalcogenide alloys (WxMo1-xS2) and graphene with superior catalytic performance for hydrogen evolution
Low temperature synthesis of heterostructures of transition metal dichalcogenide alloys (WxMo1-xS2) and graphene with superior catalytic performance for hydrogen evolution Open
Large-area ($\sim$cm$^2$) films of vertical heterostructures formed by alternating graphene and transition-metal dichalcogenide(TMD) alloys are obtained by wet chemical routes followed by a thermal treatment at low temperature (300 $^\circ…
View article: Excitonic Effects in Tungsten Disulfide Monolayers on Two-Layer Graphene
Excitonic Effects in Tungsten Disulfide Monolayers on Two-Layer Graphene Open
Light emission in atomically thin heterostructures is known to depend on the type of materials and the number and stacking sequence of the constituent layers. Here we show that the thickness of a two-dimensional substrate can be crucial in…
View article: Ultrasensitive molecular sensor using N-doped graphene through enhanced Raman scattering
Ultrasensitive molecular sensor using N-doped graphene through enhanced Raman scattering Open
N-doped graphene can be used as a substrate for different molecules to effectively enhance their Raman scattering signal.
View article: Third order nonlinear optical response exhibited by mono- and few-layers of WS <sub>2</sub>
Third order nonlinear optical response exhibited by mono- and few-layers of WS <sub>2</sub> Open
In this work, strong third order nonlinear optical properties exhibited by WS2 layers are presented. Optical Kerr effect was identified as the dominant physical mechanism responsible for these third order optical nonlinearities. An extraor…