Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Ricardo P. S. M. Lobo"'
Autor:
Valentina Martelli, Amaury Anquetil, Lin Al Atik, Julio Larrea Jiménez, Alaska Subedi, Ricardo P. S. M. Lobo, Kamran Behnia
Publikováno v:
Communications Physics, Vol 7, Iss 1, Pp 1-11 (2024)
Abstract The first-order phase transition between the liquid and gaseous phases ends at a critical point. Critical opalescence occurs at this singularity. Discovered in 1822, it is known to be driven by diverging fluctuations in the density. During t
Externí odkaz:
https://doaj.org/article/750f2febbcc249fbb480e4754b850e41
Autor:
Adrien Gourgout, Maxime Leroux, Jean-Loup Smirr, Maxime Massoudzadegan, Ricardo P. S. M. Lobo, David Vignolles, Cyril Proust, Helmuth Berger, Qiang Li, Genda Gu, Christopher C. Homes, Ana Akrap, Benoît Fauqué
Publikováno v:
npj Quantum Materials, Vol 7, Iss 1, Pp 1-7 (2022)
Abstract The ultra-quantum limit is achieved when a magnetic field confines an electron gas in its lowest spin-polarised Landau level. Here we show that in this limit, electron doped ZrTe5 shows a metal-insulator transition followed by a sign change
Externí odkaz:
https://doaj.org/article/6423347894db40c2811065e70944ea9a
Autor:
Nicholas R. Poniatowski, Tarapada Sarkar, Ricardo P. S. M. Lobo, Sankar Das Sarma, Richard L. Greene
It has recently been conjectured that the transport relaxation rate in metals is bounded above by the temperature of the system. In this work, we discuss the transport phenomenology of overdoped electron-doped cuprates, which we show constitute an un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1f9299b7f62cc978a0949295ec7465a
http://arxiv.org/abs/2109.00513
http://arxiv.org/abs/2109.00513
Autor:
Boby Joseph, V. S. Bhadram, Andrea Gauzzi, Davide Delmonte, E. Gilioli, Benoit Baptiste, Ricardo P. S. M. Lobo, Y. Le Godec
Publikováno v:
Physical Review Materials
Physical Review Materials, American Physical Society, 2021, 5 (10), ⟨10.1103/PhysRevMaterials.5.104411⟩
Physical Review Materials, 2021, 5 (10), pp.104411. ⟨10.1103/PhysRevMaterials.5.104411⟩
Physical Review Materials, American Physical Society, 2021, 5 (10), ⟨10.1103/PhysRevMaterials.5.104411⟩
Physical Review Materials, 2021, 5 (10), pp.104411. ⟨10.1103/PhysRevMaterials.5.104411⟩
By means of in situ synchrotron X-ray diffraction and Raman spectroscopy under hydrostatic pressure, we investigate the structural stability of the quadruple perovskite LaMn7O12. At 34 GPa, the data unveil a first-order structural phase transition fr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cf2f7c4d8158aa62b19327e133c1375
http://arxiv.org/abs/2102.09998
http://arxiv.org/abs/2102.09998
Autor:
Jean-Blaise Brubach, P. Giura, Laetitia Vincent, Fei He, Eugenio Calandrini, Pascale Roy, Ricardo P. S. M. Lobo, Daniele Antonangeli, Lorenzo Paulatto, Francesco Capitani
Publikováno v:
Physical Review B
Physical Review B, 2021, 103 (5), ⟨10.1103/PhysRevB.103.054302⟩
Physical Review B, American Physical Society, 2021, 103 (5), ⟨10.1103/PhysRevB.103.054302⟩
Physical Review B, 2021, 103 (5), ⟨10.1103/PhysRevB.103.054302⟩
Physical Review B, American Physical Society, 2021, 103 (5), ⟨10.1103/PhysRevB.103.054302⟩
Experimental and numerical investigation of phonon optical modes of MgO as a function of temperature (from 300 to 1400 K) and pressure (from 0 to 21 GPa) are here presented. Infrared reflectivity measurements were performed to probe energies and widt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::10430392f06ee7e3ce635bee82437c22
https://hal.science/hal-03145971/document
https://hal.science/hal-03145971/document
Autor:
Andrea Piarristeguy, Ludovica Guarneri, Christian Teichrib, Marc Drögeler, Carl-Friedrich Schön, Christoph Stampfer, Min Zhu, Ricardo P. S. M. Lobo, Ming Xu, Yiming Zhou, Alexander von Hoegen, Stefan Jakobs, Mohit Raghuwanshi, Jean-Yves Raty, Annie Pradel, Sophia Wahl, Oana Cojocaru-Mirédin, Matthias Wuttig, Stefan A. Maier
Publikováno v:
Advanced materials 33(39), 2102356-(2021). doi:10.1002/adma.202102356
Advanced materials 33(39), 2102356 (2021). doi:10.1002/adma.202102356
Advanced Materials
Advanced Materials, Wiley-VCH Verlag, In press, pp.2102356. ⟨10.1002/adma.202102356⟩
Advanced materials 33(39), 2102356 (2021). doi:10.1002/adma.202102356
Advanced Materials
Advanced Materials, Wiley-VCH Verlag, In press, pp.2102356. ⟨10.1002/adma.202102356⟩
Advanced materials 33(39), 2102356 (2021). doi:10.1002/adma.202102356
Published by Wiley-VCH, Weinheim
Published by Wiley-VCH, Weinheim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66c7d6179e72dffffca982a813427ec9
https://hdl.handle.net/2128/29918
https://hdl.handle.net/2128/29918
Autor:
Ricardo P. S. M. Lobo, J. Wyzula, D. Santos-Cottin, Michele Casula, Luca de' Medici, Yannick Klein, Ana Akrap, Andrea Gauzzi, Milan Orlita, F. Le Mardelé
We investigate the optical conductivity and far-infrared magneto-optical response of BaNiS$_2$, a simple square-lattice semimetal characterized by Dirac nodal lines that disperse exclusively along the out-of-plane direction. With the magnetic field a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31f4103c0067ebeb326a86ff42406620
https://doi.org/10.48550/arxiv.2104.05521
https://doi.org/10.48550/arxiv.2104.05521
Autor:
Ming Xu, Peining Li, Xiangshui Miao, Carlos Maciel-Escudero, Chao Chen, Martin Lewin, Ricardo P. S. M. Lobo, Xinliang Zhang, Wei Xiong, Shu Chen, Thomas Taubner, Rainer Hillenbrand
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
instname
ACS Photonics
ACS photonics 7(12), 3499-3506 (2020). doi:10.1021/acsphotonics.0c01541
instname
ACS Photonics
ACS photonics 7(12), 3499-3506 (2020). doi:10.1021/acsphotonics.0c01541
Chalcogenide phase-change materials (PCMs) exhibit optical phonons at terahertz (THz) frequencies, which can be used for studying basic properties of the phase transition and which lead to a strong dielectric contrast that could be exploited for THz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c249ce10a6da35846804a8afb408424e
http://hdl.handle.net/10261/235566
http://hdl.handle.net/10261/235566
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 188:276-284
A comprehensive set of optical vibrational modes of monoclinic taurine crystals was determined by Raman scattering, and infrared reflectivity and transmission spectroscopies. By using appropriate scattering/reflection geometries, the vibrational mode
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c92d7930fe7e571f7d04d8c96c366ca0
https://doi.org/10.1016/j.saa.2017.07.017
https://doi.org/10.1016/j.saa.2017.07.017
Autor:
Fei He, Daniele Antonangeli, Ricardo P. S. M. Lobo, Alexei Bosak, Lorenzo Paulatto, Eugenio Calandrini, Luigi Paolasini, P. Giura
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
The anharmonic lattice dynamics of MgO has been studied at ambient conditions and at high temperatures by infrared spectroscopy combined with density functional perturbation theory calculations. The agreement between the measured phonon energies and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ec496c351da4c8b0af1787aaf52fe26
https://doi.org/10.1109/irmmw-thz.2019.8874390
https://doi.org/10.1109/irmmw-thz.2019.8874390