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26.
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13 p, 8.2 MB |
The Role of polarity in nonplanar semiconductor nanostructures
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De La Mata, Maria (Institut Català de Nanociència i Nanotecnologia) ;
Zamani, Reza (École Polytechnique Fédérale de Lausanne. Interdisciplinary Center for Electron Microscopy) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Eickhoff, Martin (University of Bremen. Institut für Festkörperphysik) ;
Xiong, Qihua (Nanyang Technological University. School of Physical and Mathematical Sciences) ;
Fontcuberta i Morral, Anna (École Polytechnique Fédérale de Lausanne) ;
Caroff, Philippe (Delft University of Technology) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia)
The lack of mirror symmetry in binary semiconductor compounds turns them into polar materials, where two opposite orientations of the same crystallographic direction are possible. Interestingly, their physical properties (e. [...]
2019 -  10.1021/acs.nanolett.9b00459
Nano letters, Vol. 19, issue 6 (June 2019) , p. 3396-3408
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27.
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16 p, 836.4 KB |
Coexistence of elastic modulations in the charge density wave state of 2H-NbSe₂
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Guster, Bogdan (Institut Català de Nanociència i Nanotecnologia) ;
Rubio Verdú, Carmen (CIC NanoGUNE700) ;
Robles, Roberto (Institut Català de Nanociència i Nanotecnologia) ;
Zaldívar, Javier (CIC NanoGUNE) ;
Dreher, Paul (Donostia International Physics Center) ;
Pruneda, Miguel (Institut Català de Nanociència i Nanotecnologia) ;
Silva-Guillén, Jose Angel (Wuhan University. School of Physics and Technology) ;
Choi, Deung-Jang (Donostia International Physics Center) ;
Pascual, José I. (CIC NanoGUNE) ;
Ugeda, Miguel M. (CIC NanoGUNE) ;
Ordejon, Pablo (Institut Català de Nanociència i Nanotecnologia) ;
Canadell Casanova, Enric 1950- (Institut de Ciència de Materials de Barcelona)
Bulk and single-layer 2H-NbSe₂ exhibit identical charge density wave order (CDW) with a quasi-commensurate 3 × 3 superlattice periodicity. Here we combine scanning tunnelling microscopy (STM) imaging at T = 1 K of 2H-NbSe₂ with first-principles density functional theory (DFT) calculations to investigate the structural atomic rearrangement of this CDW phase. [...]
2019 - 10.1021/acs.nanolett.9b00268
Nano letters, Vol. 19, issue 5 (May 2019) , p. 3027-3032
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28.
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21 p, 1.2 MB |
Crystallographically textured nanomaterials produced from the liquid phase sintering of BixSb₂-xTe₃ nanocrystal building blocks
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Liu, Yu (Institut de Recerca en Energia de Catalunya) ;
Zhang, Yu (Institut de Recerca en Energia de Catalunya) ;
Ortega, Silvia (Institut de Recerca en Energia de Catalunya) ;
Ibáñez, Maria (ETH Zürich. Department of Chemistry and Applied Biosciences) ;
Lim, Khak Ho (Hong Kong University of Science and Technology. Department of Chemical and Biological Engineering) ;
Grau Carbonell, Albert (Institut Català de Nanociència i Nanotecnologia) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Ng, Ka Ming (Hong Kong University of Science and Technology. Department of Chemical and Biological Engineering) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Kovalenko, Maksym V. (ETH Zürich. Department of Chemistry and Applied Biosciences) ;
Cadavid, Doris (Institut de Recerca en Energia de Catalunya) ;
Cabot, Andreu (Institut de Recerca en Energia de Catalunya)
Bottom-up approaches for producing bulk nanomaterials have traditionally lacked control over the crystallographic alignment of nanograins. This limitation has prevented nanocrystal-based nanomaterials from achieving optimized performances in numerous applications. [...]
2018 - 10.1021/acs.nanolett.8b00263
Nano letters, Vol. 18, issue 4 (April 2018) , p. 2557-2563
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29.
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10 p, 2.0 MB |
Spin states protected from intrinsic electron-phonon coupling reaching 100 ns lifetime at room temperature in MoSe₂
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Ersfeld, Manfred (RWTH Aachen University) ;
Volmer, Frank (RWTH Aachen University) ;
Melo, Pedro Miguel M. C. de (Université de Liège. Complex and Entangled Systems from Atoms to Materials) ;
Winter, Robin de (RWTH Aachen University) ;
Heithoff, Maximilian (RWTH Aachen University) ;
Zanolli, Zeila (Institut Català de Nanociència i Nanotecnologia) ;
Stampfer, Cristoph (RWTH Aachen University) ;
Verstraete, Matthieu J. (Université de Liège. Complex and Entangled Systems from Atoms to Materials) ;
Beschoten, Bernd (RWTH Aachen University)
We present time-resolved Kerr rotation measurements, showing spin lifetimes of over 100 ns at room temperature in monolayer MoSe. These long lifetimes are accompanied by an intriguing temperature-dependence of the Kerr amplitude, which increases with temperature up to 50 K and then abruptly switches sign. [...]
2019 - 10.1021/acs.nanolett.9b01485
Nano letters, Vol. 19, issue 6 (June 2019) , p. 4083-4090
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30.
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30 p, 2.4 MB |
Atomic-Scale Determination of Cation Inversion in Spinel-Based Oxide Nanoparticles
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Torruella, Pau (Universitat de Barcelona. Departament d'Enginyeria Electrònica i Biomèdica) ;
Ruiz Caridad, Alicia (Universitat de Barcelona. Departament d'Enginyeria Electrònica i Biomèdica) ;
Walls, Michael (Paris-Sud University) ;
Gómez Roca, Alejandro (Institut Català de Nanociència i Nanotecnologia) ;
López-Ortega, Alberto (CIC nanoGUNE) ;
Blanco Portals, Javier (Universitat de Barcelona. Departament d'Enginyeria Electrònica i Biomèdica) ;
López Conesa, Lluís (Universitat de Barcelona. Departament d'Enginyeria Electrònica i Biomèdica) ;
Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ;
Peiro, Francesca (Universitat de Barcelona. Departament d'Electrònica) ;
Estrade, Sonia (Universitat de Barcelona. Departament d'Electrònica)
The atomic structure of nanoparticles can be easily determined by transmission electron microscopy. However, obtaining atomic-resolution chemical information about the individual atomic columns is a rather challenging endeavor. [...]
2018 - 10.1021/acs.nanolett.8b02524
Nano letters, Vol. 18, Issue 9 (September 2018) , p. 5854-5861
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31.
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20 p, 3.6 MB |
Two-Dimensional Phononic Crystals : Disorder Matters
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Wagner, Markus R.. (Institut Català de Nanociència i Nanotecnologia) ;
Graczykowski, Bartlomiej (Institut Català de Nanociència i Nanotecnologia) ;
Reparaz, Juan Sebastian (Institut Català de Nanociència i Nanotecnologia) ;
Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia) ;
Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ;
Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ;
Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
The design and fabrication of phononic crystals (PnCs) hold the key to control the propagation of heat and sound at the nanoscale. However, there is a lack of experimental studies addressing the impact of order/disorder on the phononic properties of PnCs. [...]
2016 - 10.1021/acs.nanolett.6b02305
Nano letters, Vol. 16, Issue 9 (September 2016) , p. 5661-5668
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32.
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33.
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35 p, 1.3 MB |
Room-temperature spin hall effect in graphene/MoS2 van der Waals heterostructures
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Safeer, C. K. (CIC NanoGUNE) ;
Ingla-Aynés, Josep (CIC NanoGUNE) ;
Herling, Franz (CIC NanoGUNE) ;
Garcia, José H. (Institut Català de Nanociència i Nanotecnologia) ;
Vila Tusell, Marc (Institut Català de Nanociència i Nanotecnologia) ;
Ontoso, Nerea (CIC NanoGUNE) ;
Calvo, M. Reyes (IKERBASQUE. Basque Foundation for Science) ;
Roche, Stephan (Institut Català de Nanociència i Nanotecnologia) ;
Hueso, Luis E. (IKERBASQUE. Basque Foundation for Science) ;
Casanova, Fèlix (IKERBASQUE. Basque Foundation for Science)
Graphene is an excellent material for long-distance spin transport but allows little spin manipulation. Transition-metal dichalcogenides imprint their strong spin-orbit coupling into graphene via the proximity effect, and it has been predicted that efficient spin-to-charge conversion due to spin Hall and Rashba-Edelstein effects could be achieved. [...]
2019 - 10.1021/acs.nanolett.8b04368
Nano letters, Vol. 19, Issue 2 (February 2019) , p. 1074-1082
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34.
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22 p, 841.0 KB |
Template-Assisted Scalable Nanowire Networks
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Friedl, Martin (École Polytechnique Fédérale de Lausanne) ;
Cerveny, Kris (University of Basel. Department of Physics) ;
Weigele, Pirmin (University of Basel. Department of Physics) ;
Tütüncüoglu, Gözde (École Polytechnique Fédérale de Lausanne) ;
Martí-Sánchez, Sara (Institut Català de Nanociència i Nanotecnologia) ;
Huang, Chunyi (Northwestern University. Department of Materials Science and Engineering) ;
Patlatiuk, Taras (University of Basel. Department of Physics) ;
Potts, Heidi A. (École Polytechnique Fédérale de Lausanne) ;
Sun, Zhiyuan (Northwestern University. Department of Materials Science and Engineering) ;
Hill, Megan O. (Northwestern University. Department of Materials Science and Engineering) ;
Güniat, Lucas (École Polytechnique Fédérale de Lausanne) ;
Kim, Wonjong (École Polytechnique Fédérale de Lausanne) ;
Zamani, Mahdi (École Polytechnique Fédérale de Lausanne) ;
Dubrovskii, Vladimir G. (ITMO University) ;
Arbiol i Cobos, Jordi (Institut Català de Nanociència i Nanotecnologia) ;
Lauhon, Lincoln J. (Northwestern University. Department of Materials Science and Engineering) ;
Zumbühl, Dominik M. (University of Basel. Department of Physics) ;
Fontcuberta i Morral, Anna (École Polytechnique Fédérale de Lausanne)
Topological qubits based on Majorana Fermions have the potential to revolutionize the emerging field of quantum computing by making information processing significantly more robust to decoherence. Nanowires are a promising medium for hosting these kinds of qubits, though branched nanowires are needed to perform qubit manipulations. [...]
2018 - 10.1021/acs.nanolett.8b00554
Nano letters, Vol. 18, Issue 4 (April 2018) , p. 2666-2671
2 documents
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35.
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9 p, 605.3 KB |
3D Visualization of the Iron Oxidation State in FeO/Fe3O4 Core-Shell Nanocubes from Electron Energy Loss Tomography
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Torruella, Pau (Universitat de Barcelona. Departament d'Electrònica) ;
Arenal, Raúl (Fundación ARAID) ;
Peña, Francisco de la (University of Cambridge. Department of Materials Science and Metallurgy) ;
Saghi, Zineb (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Yedra Cardona, Lluís (Universitat de Barcelona. Departament d'Electrònica) ;
Eljarrat Ascunce, Alberto (Universitat de Barcelona. Departament d'Electrònica) ;
López Conesa, Lluís (Universitat de Barcelona. Departament d'Electrònica) ;
Estrader, Marta (Laboratoire de Physique et Chimie des Nano-objects) ;
López-Ortega, Alberto (Università degli Studi di Firenze) ;
Salazar Álvarez, Germán (Stockholm University) ;
Nogués, Josep (Institut Català de Nanociència i Nanotecnologia) ;
Ducati, Caterina (University of Cambridge. Department of Materials Science and Metallurgy) ;
Midgley, Paul A. (University of Cambridge. Department of Materials Science and Metallurgy) ;
Peiro, Francesca (Universitat de Barcelona. Departament d'Electrònica) ;
Estrade, Sonia (Universitat de Barcelona. Departament d'Electrònica)
The physicochemical properties used in numerous advanced nanostructured devices are directly controlled by the oxidation states of their constituents. In this work we combine electron energy-loss spectroscopy, blind source separation, and computed tomography to reconstruct in three dimensions the distribution of Fe and Fe ions in a FeO/FeO core/shell cube-shaped nanoparticle with nanometric resolution. [...]
2016 - 10.1021/acs.nanolett.6b01922
Nano letters, Vol. 16, Issue 8 (August 2016) , p. 5068-5073
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