Highlights

Strontium hexaferrite platelets: a comprehensive soft X-ray absorption and Mössbauer spectroscopy study

Strontium hexaferrite platelets: a comprehensive soft X-ray absorption and Mössbauer spectroscopy study

Author: G. D. Soria, P. Jenus, J. F. Marco, A. Mandziak, M. Sanchez-Arenillas, F. Moutinho, J. E. Prieto, P. Prieto, J. Cerdá, C. Tejera-Centeno, S. Gallego, M. Foerster, L. Aballe, M. Valvidares, H. B. Vasili, E. Pereiro, A. Quesada, and J. de la Figuera.

Scientific Reports. 2019

Abstract:
Platelets of strontium hexaferrite (SrFe12O19, SFO), up to several micrometers in width, and tens of nanometers thick have been synthesized by a hydrothermal method. They have been studied by a combination of structural and magnetic techniques, with emphasis on Mössbauer spectroscopy…

Plasma Enabled Conformal and Damage Free Encapsulation of Fragile Molecular Matter: from Surface‐Supported to On‐Device Nanostructures

Plasma Enabled Conformal and Damage Free Encapsulation of Fragile Molecular Matter: from Surface‐Supported to On‐Device Nanostructures

Author: Maria Alcaire, Francisco J. Aparicio, José Obrero, Carmen López‐Santos, Francisco J. Garcia‐Garcia, Juan R. Sánchez‐Valencia, Fabián Frutos, Kostya (Ken) Ostrikov, Ana Borrás, Angel Barranco.

Advanced Functional Materials 2019

Abstract:
Damage‐free encapsulation of molecular structures with functional nanolayers is crucial to protect nanodevices from environmental exposure. With nanoscale electronic, optoelectronic, photonic, sensing, and other nanodevices based on atomically thin and fragile organic matter shrinking in size…

Physically Unclonable Functions Based on Single-Walled Carbon Nanotubes: A Scalable and Inexpensive Method toward Unique Identifiers

Physically Unclonable Functions Based on Single-Walled Carbon Nanotubes: A Scalable and Inexpensive Method toward Unique Identifiers

Author: Enrique Burzurí, Daniel Granados, Emilio M. Pérez

ACS Appl. Nano Mater. (2019)

Abstract:
A physically unclonable function (PUF) is a physical system that cannot be reproduced or predicted and therefore is a good basis on which to build security and anticounterfeiting applications. The unclonability of PUFs typically stems from the randomness induced…

Liquid switchable radial polarization converters made of sculptured thin films

Liquid switchable radial polarization converters made of sculptured thin films

Author: ManuelOliva-Ramírez, Victor J.Rico, JorgeGil-Rostra, OriolArteaga, EnricBertran, RosalíaSerna, Agustín R.González-Elipe, Francisco Yubero

Applied Surface Science (2019)

Abstract:
A radial polarization converter is a super-structured optical retarder that converts a conventional linearly polarized light beam into a structured beam with radial or azimuthal polarization. We present a new type of these sophisticated optical elements, which is made of porous nanostructured…

Prevalence of non-aromatic carbonaceous molecules in the inner regions of circumstellar envelopes

Prevalence of non-aromatic carbonaceous molecules in the inner regions of circumstellar envelopes

Author:

Lidia Martínez, Gonzalo Santoro, Pablo Merino, Mario Accolla, Koen Lauwaet, Jesús Sobrado, Hassan Sabbah, Ramón J. Pelaez, Victor J. Herrero, Isabel Tanarro, Marcelino Agúndez, Alberto Martín-Jimenez, Roberto Otero, Gary J. Ellis, Christine Joblin, José Cernicharo and José A. Martín-Gago 

Nature Astronomy (2019)

Abstract:
Evolved stars are foundries of chemical complexity, gas and dust that provide the building blocks of planets and life, and dust nucleation first occurs in their photosphere. The circumstellar regions enveloping these stars, despite their importance, remain hidden to many observations, and…

Coexistence of Elastic Modulations in the Charge Density Wave State of 2H-NbSe2

Coexistence of Elastic Modulations in the Charge Density Wave State of 2H-NbSe2

Author: Guster B , Rubio-Verdú C, Robles R , Zaldívar J, Dreher P, Pruneda M, Silva-Guillén JA, Choi DJ, Pascual JI, Ugeda MM, Ordejón P, and Canadell E.

Nano Letters (ASAP). 2019

Abstract:
When a material undergoes a phenomenon called charge density wave both its atomic lattice and electronic density distorts coherently below a certain temperature. In this work, we demonstrate that these distortions may appear…

Synergic antibacterial coatings combining titanium nanocolumns and tellurium nanorods

Synergic antibacterial coatings combining titanium nanocolumns and tellurium nanorods

Author: David Medina, María Ujué González, William Tien-Street, Marcial Fernández Castro, Iván Fernández, Lidia Martínez, Yves Huttel, Thomas J. Webster and José Miguel García-Martín

Nanomed.-Nanotechnol. Biol. Med. 17, 36-46, 2019

Abstract:
The combination between a Ti nanocolumnar template, fabricated by sputtering, and tellurium nanorods, prepared on top by a hydrothermal method, produces coatings with excellent antibacterial properties…

New technique to manufacture antidot arrays in oxides

New technique to manufacture antidot arrays in oxides

Author: Juan L. Palma, Alejandro Pereira, Raquel Álvaro, José Miguel García-Martín and Juan Escrig

Beilstein J. Nanotechnol. 2018

Abstract
Magnetic thin films with periodic arrays of holes, so-called antidot arrays, can be used in several applications such as magnetoplasmonics, sensors, magnonics and spintronic devices. With suitable dimensions, the holes allow for engineering the magnetic properties. In this work, the new technique called AFIR (from ALD + FIB + reduction) to manufacture antidot arrays in magnetic oxides is presented, and as a proof of concept, magnetite antidots are studied.

Recent developments in surface science and engineering, thin films, nanoscience, biomaterials, plasma science, and vacuum technology

Recent developments in surface science and engineering, thin films, nanoscience, biomaterials, plasma science, and vacuum technology

Author: M. Mozetič, A. Vesel, G. Primc, C. Eisenmenger-Sittner, J. Bauer, A. Edera, G.H.S. Schmid, D.N. Ruzic, Z. Ahmed, D. Barker, K.O. Douglass, S. Eckel, J.A. Fedchak, J. Hendricks, N. Klimov, J. Ricker, J. Scherschligt, J. Stone, G. Strouse, I. Capan, M. Buljan, S. Milošević, C. Teichert, S.R. Cohen, A.G. Silva, M. Lehocky, P. Humpoliček, C. Rodriguez, J. Hernandez-Montelongo, D. Mercier, M. Manso-Silván, G. Ceccone, A. Galtayries, K. Stana-Kleinschek, I. Petrov, J.E. Greene, J. Avila, C.Y. Chen, B. Caja-Munoz, H. Yia, A. Boury, S. Lorcy, M.C. Asensio, J. Bredins, T. Gansa, D. O’Connell, J. Brendin, F. Reniers, A. Vincze, M. Anderle, L. Montelius
Thin Solid Films. 2018

Abstract:
Nanometer-sized structures, surfaces and sub-surface phenomena have played an enormous role in science and technological applications and represent a driving-force of current interdisciplinary science. Recent developments include…

New method to synthesize graphene by using C60 as carbon source

New method to synthesize graphene by using C60 as carbon source

Author: J. Azpeitia,  G. Otero-Irurueta, I. Palacio, J. I. Martinez, N. Ruiz del Árbol, G. Santoro, A. Gutiérrez, L. Aballe, M. Foerster, M. Kalbac, V. Vales, F. J. Mompeán, M. García-Hernández, J. A. Martín-Gago, C. Munuera, M. F. López
Carbon. 2017

Abstract:
We present a new strategy to grow high-quality graphene by physical vapour deposition (PVD) using as precursor C60 molecules evaporated in ultra high vacuum conditions (UHV). A multitechnique characterization was performed to determine…

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