Permeation of chemisorbed hydrogen through graphene: A flipping mechanism elucidated

2021-10-27T10:46:41+02:00Tags: , , |

Authors: Bartolomei, Massimiliano; Hernandez, Marta, I; Campos-Martinez, Jose; Hernandez-Lamoneda, Ramon; Giorgi, Giacomo Journal: CARBON Publication date: 2021/06/30 DOI: 10.1016/j.carbon.2021.02.056 Abstract: The impermeability of defect-free graphene to all gases has been recently contested since experimental evidence (see Nature 579, 229-232 (2020)) of hydrogen transmission through a two-dimensional carbon layer has been obtained. By means of density [...]

The sulphur saga in TMC-1: Discovery of HCSCN and HCSCCH

2021-10-27T10:46:41+02:00Tags: |

Authors: Cernicharo, J.; Cabezas, C.; Endo, Y.; Agundez, M.; Tercero, B.; Pardo, J. R.; Marcelino, N.; de Vicente, P. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/06/23 DOI: 10.1051/0004-6361/202141297 Abstract: We report the detection, for the first time in space, of cyano thioformaldehyde (HCSCN) and propynethial (HCSCCH) towards the starless core TMC-1. Cyano thioformaldehyde presents a [...]

Computational Characterization of the Intermixing of Iron Triade (Fe, Co, and Ni) Surfaces and Sub-nanometric Clusters with Atomic Gold

2021-10-27T10:46:42+02:00Tags: , |

Authors: Lopez-Caballero, Patricia; Garsed, Ricardo; Pilar de Lara-Castells, Maria Journal: ACS OMEGA Publication date: 2021/06/22 DOI: 10.1021/acsomega.1c02116 Abstract: Dispersion-corrected density functional theory (DFT-D3) is applied to model iron triade (Fe, Co, and Ni) surfaces upon exchange of surface atoms with atomic gold. One first goal is to analyze the contact problem at the triade surface-Au [...]

Detection of deuterated methylcyanoacetylene, CH2DC3N, in TMC-1

2021-10-27T10:46:42+02:00Tags: |

Authors: Cabezas, C.; Roueff, E.; Tercero, B.; Agundez, M.; Marcelino, N.; de Vicente, P.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/06/21 DOI: 10.1051/0004-6361/202141371 Abstract: We report the first detection in space of the single deuterated isotopologue of methylcyanoacetylene, CH2DC3N. A total of 15 rotational transitions, with J=8-12 and K-a=0 and 1, were identified [...]

Pure hydrocarbon cycles in TMC-1: Discovery of ethynyl cyclopropenylidene, cyclopentadiene, and indene

2021-06-17T13:56:23+02:00Tags: , |

Authors: Cernicharo, J; Agúndez, M.; Cabezas, C.; Tercero, B.; Marcelino, N.; Pardo, J. R.; de Vicente, P. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/05/13 DOI: 10.1051/0004-6361/202141156 Abstract: We report the detection for the first time in space of three new pure hydrocarbon cycles in TMC-1: c-C3HCCH (ethynyl cyclopropenylidene), c-C5H6 (cyclopentadiene), and c-C9H8 (indene). We derive [...]

Permeation of chemisorbed hydrogen through graphene: A flipping mechanism elucidated

2021-06-17T13:48:54+02:00Tags: , |

Authors: Bartolomei, M; Hernández, M. I.; Campos-Martínez, J.; Hernández-Lamoneda, R.; Giorgi, G. Journal: CARBON Publication date: 2021/02/24 DOI: 10.1016/j.carbon.2021.02.056 Abstract: The impermeability of defect-free graphene to all gases has been recently contested since experimental evidence (see Nature 579, 229–232 (2020)) of hydrogen transmission through a two-dimensional carbon layer has been obtained. By means of density [...]

Dissipative Josephson effect in coupled nanolasers

2021-06-17T13:39:41+02:00Tags: , |

Authors: Fernandez-Lorenzo, Samuel; Porras, Diego Journal: NEW JOURNAL OF PHYSICS Publication date: 2021/03/01 DOI: 10.1088/1367-2630/abe811 Abstract: Josephson effects are commonly studied in quantum systems in which dissipation or noise can be neglected or do not play a crucial role. In contrast, here we discuss a setup where dissipative interactions do amplify a photonic Josephson current, [...]

Cumulene carbenes in TMC-1: Astronomical discovery of l-H2C5

2021-10-27T10:46:42+02:00Tags: |

Authors: Cabezas, C.; Tercero, B.; Agundez, M.; Marcelino, N.; Pardo, J. R.; de Vicente, P.; Cernicharo, J. Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2021/06/15 DOI: 10.1051/0004-6361/202141274 Abstract: We report the first detection in space of the cumulene carbon chain l-H2C5. A total of eleven rotational transitions, with J(up)=7-10 and K-a=0 and 1, were detected in [...]

Becas JAE Intro IFF 2021

2021-06-15T16:19:14+02:00Tags: , , , , |

El Instituto de Física Fundamental ofrece hasta 6 becas de introducción a la investigación (JAE-Intro-IFF) para estudiantes universitarios: - Dirigido a: Estudiantes cursando el penúltimo/último año de grado o máster. - Duración: 3 meses. - Remuneración: 600 euros/mes (tiempo máximo de dedicación semanal: 20 horas). - Plazo de solicitud: desde el 15 de junio hasta el [...]

A perspective on scaling up quantum computation with molecular spins

2021-10-27T10:46:42+02:00Tags: , |

Authors: Carretta, S.; Zueco, D.; Chiesa, A.; Gomez-Leon, A.; Luis, F. Journal: APPLIED PHYSICS LETTERS Publication date: 2021/06/14 DOI: 10.1063/5.0053378 Abstract: Artificial magnetic molecules can contribute to progressing toward large scale quantum computation by (a) integrating multiple quantum resources and (b) reducing the computational costs of some applications. Chemical design, guided by theoretical proposals, allows [...]

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