Results 31 to 40 of about 1,960 (132)

Deshojando margaritas: ¿nanociencia o nanotecnología?

Mundo Nano, 2015
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Ernesto Estévez Ramos, Beatriz Aragón fernández   +1 more
doaj   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

Optimizing Josephson Junction Reproducibility in 30 kV E-Beam Lithography: An Analysis of Backscattered Electron Distribution

Nanomaterials
This paper explores methods to enhance the reproducibility of Josephson junctions, which are crucial elements in superconducting quantum technologies, when employing the Dolan technique in 30 kV e-beam processes.
Arthur M. Rebello, Lucas M. Ruela, Gustavo Moreto, Naiara Y. Klein, Eldues Martins, Ivan S. Oliveira, João P. Sinnecker, Francisco Rouxinol   +7 more
doaj   +1 more source

José Saniger y Sergio Fuentes, pilares de la NyN, reconoce Nanomex Riesgo y desarrollo de empresas con base tecnológica: principal reto para el sector

Mundo Nano, 2015
La nanociencia y la nanotecnología han forjado un camino importante en tanto la prospectiva de innovación en el país. Las oportunidades que puede representar el seguimiento de este campo son prometedoras; no obstante, este trayecto ha sido trazado por el
Elena León
doaj   +1 more source

ELECTROQUIMIENERGÍA Y CAMBIO CLIMÁTICO: UNA REVISIÓN

infoANALITÍCA, 2022
La situación actual que se vive requiere de una adicional y urgente atención por parte de las Ciencias, Ingenierías y Tecnologías para control ambiental, climático, sanitario, por el bienestar y para la vida en el planeta.
Jairo Márquez P., Olga P. Márquez , Yris Martínez, Keyla Márquez , Elkis Weinhold, Reynaldo Ortíz   +5 more
doaj   +1 more source

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

NANOTECNOLOGIA E NANOCIÊNCIA EM LIVROS DIDÁTICOS DE FÍSICA DO NÍVEL MÉDIO: DISCURSOS SOBRE A TECNOLOGIA E A EDUCAÇÃO CIENTÍFICA E TECNOLÓGICA

Momento, 2013
Na presente investigação, analisamos as abordagens sobre a nanotecnologia e a nanociência em edições recentes de livros didáticos de Física, do nível médio da educação brasileira.
Paulo N. Lisboa-Filho, Maria A. Monteiro
doaj  

Ensino de Nanociência e Educação CTS: um olhar sobre a prática docente

Indagatio Didactica
Os avanços decorrentes na área da Nanociência e Nanotecnologia vêm impactando a sociedade, de forma que se torna essencial o acesso e compreensão da população dos conhecimentos desta área. Para este propósito, as escolas precisam estar abertas para essa
Lucinéia Ferreira Ceridório, Camila de Lima Bezerra Nonato   +1 more
doaj   +1 more source

Azaporphyrinoid‐Based Photo‐ and Electroactive Architectures for Advanced Functional Materials

Advanced Materials, EarlyView.
A long‐standing collaboration between the Torres and Guldi groups has yielded diverse azaporphyrinoid‐based donor‐acceptor nanohybrids with promising applications in solar energy conversion. This conspectus highlights key molecular platforms and structure‐function relationships that govern light and charge management, supporting the rational design of ...
Jorge Labella, Kobra Azizi, Dirk M. Guldi, Tomás Torres   +3 more
wiley   +1 more source