Zobrazeno 1 - 10
of 689
pro vyhledávání: '"P.-A. Ruffieux"'
Inelastic electron tunneling spectroscopy (IETS) is a powerful measurement technique often used in scanning tunneling spectroscopy to probe excited states of various nanostructures, e.g., the magnetic properties of complex spin systems. The observed
Externí odkaz:
http://arxiv.org/abs/2411.19670
Autor:
Zhao, Chenxiao, Yang, Lin, Henriques, João C. G., Ferri-Cortés, Mar, Catarina, Gonçalo, Pignedoli, Carlo A., Ma, Ji, Feng, Xinliang, Ruffieux, Pascal, Fernández-Rossier, Joaquín, Fasel, Roman
Haldane's seminal work established two fundamentally different types of excitation spectra for antiferromagnetic Heisenberg quantum spin chains: gapped excitations in integer-spin chains and gapless excitations in half-integer-spin chains. In finite-
Externí odkaz:
http://arxiv.org/abs/2408.10045
Autor:
Darawish, Rimah, Braun, Oliver, Muellen, Klaus, Calame, Michel, Ruffieux, Pascal, Fasel, Roman, Barin, Gabriela Borin
Graphene nanoribbons (GNRs) with atomically precise widths and edge topologies have well-defined band gaps that depend on ribbon dimensions, making them ideal for room-temperature switching applications like field-effect transistors (FETs). For effic
Externí odkaz:
http://arxiv.org/abs/2407.12646
Autor:
Catarina, Gonçalo, Turco, Elia, Krane, Nils, Bommert, Max, Ortega-Guerrero, Andres, Gröning, Oliver, Ruffieux, Pascal, Fasel, Roman, Pignedoli, Carlo A.
Publikováno v:
Nano Lett. 2024, 24, 12536-12544
Phenalenyl (C$_{13}$H$_9$) is an open-shell spin-$1/2$ nanographene. Using scanning tunneling microscopy (STM) inelastic electron tunneling spectroscopy (IETS), covalently-bonded phenalenyl dimers have been shown to feature conductance steps associat
Externí odkaz:
http://arxiv.org/abs/2407.11506
Autor:
Turco, Elia, Wu, Fupeng, Catarina, Gonçalo, Krane, Nils, Ma, Ji, Fasel, Roman, Feng, Xinliang, Ruffieux, Pascal
In the quest for high-spin building blocks to form covalently bonded 1D or 2D materials with controlled magnetic interactions, $\pi$-electron magnetism provides an ideal framework to engineer large ferromagnetic interactions between nanographenes. As
Externí odkaz:
http://arxiv.org/abs/2407.00728
Autor:
Kinikar, Amogh, Englmann, Thorsten G., Di Giovannantonio, Marco, Bassi, Nicolò, Xiang, Feifei, Stolz, Samuel, Widmer, Roland, Barin, Gabriela Borin, Turco, Elia, Díez, Néstor Merino, Eimre, Kristjan, Guerrero, Andres Ortega, Feng, Xinliang, Gröning, Oliver, Pignedoli, Carlo A., Fasel, Roman, Ruffieux, Pascal
Atomically precise graphene nanoribbons (GNRs) have a wide range of electronic properties that depend sensitively on their chemical structure. Several types of GNRs have been synthesized on metal surfaces through selective surface-catalyzed reactions
Externí odkaz:
http://arxiv.org/abs/2404.19389
Autor:
Zhao, Chenxiao, Catarina, Gonçalo, Zhang, Jin-Jiang, Henriques, João C. G., Yang, Lin, Ma, Ji, Feng, Xinliang, Gröning, Oliver, Ruffieux, Pascal, Fernández-Rossier, Joaquín, Fasel, Roman
Unlocking the potential of topological order within many-body spin systems has long been a central pursuit in the realm of quantum materials. Despite extensive efforts, the quest for a versatile platform enabling site-selective spin manipulation, ess
Externí odkaz:
http://arxiv.org/abs/2402.13590
The analysis of multivariate functional curves has the potential to yield important scientific discoveries in domains such as healthcare, medicine, economics and social sciences. However, it is common for real-world settings to present longitudinal d
Externí odkaz:
http://arxiv.org/abs/2311.05200
Autor:
Nicolò Bassi, Xiushang Xu, Feifei Xiang, Nils Krane, Carlo A. Pignedoli, Akimitsu Narita, Roman Fasel, Pascal Ruffieux
Publikováno v:
Communications Chemistry, Vol 7, Iss 1, Pp 1-9 (2024)
Abstract Graphene nanoribbons (GNRs), nanometer-wide strips of graphene, have garnered significant attention due to their tunable electronic and magnetic properties arising from quantum confinement. A promising approach to manipulate their electronic
Externí odkaz:
https://doaj.org/article/8285df5b8bca4967b76bc8883b3dd948
Autor:
Turco, Elia, Aapro, Markus, Ganguli, Somesh C., Krane, Nils, Drost, Robert, Sobrino, Nahual, Bernhardt, Annika, Juríček, Michal, Fasel, Roman, Ruffieux, Pascal, Liljeroth, Peter, Jacob, David
The Kondo effect describes the scattering of conduction electrons by magnetic impurities, manifesting as an electronic resonance at the Fermi energy with a distinctive temperature evolution. In this letter, we present a critical evaluation of the cur
Externí odkaz:
http://arxiv.org/abs/2310.09326