Results 121 to 130 of about 3,488,373 (301)

Spin response of impurities in a quantum corral [PDF]

open access: yes, 2014
In this work we investigate the dependence of spin observables, like the total spin alignment and the spin squeezing factor, for electrons confined inside an elliptic quantum corral and interacting with a pair of impurities located on the semi-major axis
Civitarese, Enrique Osvaldo   +2 more
core   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

open access: yesAdvanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon   +7 more
wiley   +1 more source

Presentación

open access: yesRevista de Ciencias Sociales, 2013
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Daniel Camacho Monge
doaj   +1 more source

Analytic structure of the S-matrix for singular quantum mechanics [PDF]

open access: yes, 2015
The analytic structure of the S-matrix of singular quantum mechanics is examined within a multichannel framework, with primary focus on its dependence with respect to a parameter (Ω) that determines the boundary conditions.
Alliluev S. P.   +9 more
core   +4 more sources

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar   +11 more
wiley   +1 more source

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

open access: yesAdvanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia   +7 more
wiley   +1 more source

Experimentos de ciencias para la escuela primaria

open access: yesRevista Iberoamericana de Educación, 2006
Los experimentos de las páginas siguientes, fueron realizados por los autores en el Colegio HEMA de la ciudad de Río Grande, RS, Brasil, en las clases de las profesoras Claudia Nunes y Giovanna Arruda con el permiso de su directora, la profesora Mónica ...
Juan Alberto Coch   +2 more
doaj  

Ultrasmall Platinum Nanoparticles for Radiation‐Enhanced Cancer Therapy

open access: yesAdvanced Functional Materials, EarlyView.
This work proposes a nanomedicine‐based strategy to enhance X‐ray radiotherapy for cancer treatment. Ultrasmall Pt‐NPs exhibit catalase‐like activity that may contribute to modulation of the tumor microenvironment and amplify interactions between radiation and biological matter, leading to increased DNA damage.
Miguel Encinas‐Gimenez   +8 more
wiley   +1 more source

El hilo encadenante o el tiempo en las culturas

open access: yesCultura y Droga, 2004
Resumen: Texto de conferencia en el cual el autor plantea la relación entre tiempo y vida en cualquiera de sus manifestaciones, a partir de interrogantes que busca responder con referencias culturales del pensamiento e historia occidental y griega, la ...
JOSEP Mª FERICGLA
doaj  

Giant Intrinsic Chirality Amplification of Aqueous Lead Halide Perovskite Nanocrystals via H‐Bond Driven Self‐Assembly Superstructures

open access: yesAdvanced Functional Materials, EarlyView.
Water‐assisted monoclinic CsPbBr3 transformation strategy is applied for synthesizing aqueous CsPbBr3/CsPb2Br5 nanocrystals with superior water‐repellent and excellent optical property. Low temperature enhanced hydrogen bonding network self‐assembled CsPbBr3/CsPb2Br5 nanocrystals into asymmetric superstructures, which exhibit notable circularly ...
Mei Huang   +7 more
wiley   +1 more source

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