Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Savoini, Matteo"'
Autor:
Soranzio, Davide, Savoini, Matteo, Graf, Fabian, Winkler, Rafael T., Nag, Abhishek, Ueda, Hiroki, Ohgushi, Kenya, Tokura, Yoshinori, Johnson, Steven L.
$FeCr_2S_4$ is a ferrimagnet with two oppositely-ordered spin sublattices (Fe and Cr), connected via superexchange interaction, giving a non-zero net magnetic moment. We show how the magnetic dynamics of the sublattices can be selectively manipulated
Externí odkaz:
http://arxiv.org/abs/2410.19263
Autor:
Soranzio, Davide, Abreu, Elsa, Houver, Sarah, Dössegger, Janine, Savoini, Matteo, Teppe, Frédéric, Krishtopenko, Sergey, Mikhailov, Nikolay N., Dvoretsky, Sergey A., Johnson, Steven L.
Materials with linear electronic dispersion often feature high carrier mobilities and unusually strong nonlinear optical interactions. In this work, we investigate the THz nonlinear dynamics of one such material, HgCdTe, with an electronic band dispe
Externí odkaz:
http://arxiv.org/abs/2404.10582
Liquid crystal based technologies have found considerably diversified uses and areas of application over the last few decades, proving to be excellent materials for tunable optical elements from visible to near-infrared frequencies. Currently, much e
Externí odkaz:
http://arxiv.org/abs/2310.15567
Autor:
Ueda, Hiroki, Mankowsky, Roman, Paris, Eugenio, Sander, Mathias, Deng, Yunpei, Liu, Biaolong, Leroy, Ludmila, Nag, Abhishek, Skoropata, Elizabeth, Ukleev, Chennan Wang Victor, Perren, Gérard Sylvester, Dössegger, Janine, Gurung, Sabina, Abreu, Elsa, Savoini, Matteo, Kimura, Tsuyoshi, Patthey, Luc, Razzoli, Elia, Lemke, Henrik Till, Johnson, Steven Lee, Staub, Urs
Interactions between the different degrees of freedom form the basis of many manifestations of intriguing physics in condensed matter. In this respect, quantifying the dynamics of normal modes that themselves arise from these interactions and how the
Externí odkaz:
http://arxiv.org/abs/2306.02676
Autor:
Biasco, Simone, Burri, Florence, Houver, Sarah, Abreu, Elsa, Savoini, Matteo, Johnson, Steven L.
Using two-dimensional THz spectroscopy in combination with numerical models, we investigate the dynamics linked to carrier multiplication caused by high-field THz excitation of the low-gap semiconductor InSb. In addition to previously observed dynami
Externí odkaz:
http://arxiv.org/abs/2208.07392
Autor:
Suter, Tim, Tomasino, Alessandro, Savoini, Matteo, Houver, Sarah, Johnson, Steven L., Abreu, Elsa
We report the coherent generation and detection of terahertz (THz) pulses covering the bandwidth of 0.1-9 THz in a high repetition rate, low pulse energy laser system. In this work we demonstrate the application and evaluation of solid-state biased c
Externí odkaz:
http://arxiv.org/abs/2201.12627
Autor:
Abreu, Elsa, Savoini, Matteo, Boie, Larissa, Beaud, Paul, Esposito, Vincent, Kubli, Martin, Neugebauer, Martin J., Porer, Michael, Staub, Urs, Burganov, Bulat, Dornes, Chris, Rodriguez-Fernandez, Angel, Huber, Lucas, Lantz, Gabriel, Mardegan, José R. L., Parchenko, Sergii, Rittmann, Jochen, Svetina, Cris, Ingold, Gerhard, Johnson, Steven L.
Publikováno v:
Physical Review B 106, 214312 (2022)
We use time-resolved hard x-ray diffraction to investigate the structural dynamics of the multiferroic insulator TbMnO$_3$ in the low temperature antiferromagnetic and ferroelectrically ordered phase. The lattice response following photoexcitation at
Externí odkaz:
http://arxiv.org/abs/2201.10009
Autor:
Ueda, Hiroki, Jang, Hoyoung, Chun, Sae Hwan, Kim, Hyeong-Do, Kim, Minseok, Park, Sang-Youn, Finizio, Simone, Hernandez, Nazaret Ortiz, Ovuka, Vladimir, Savoini, Matteo, Kimura, Tsuyoshi, Tanaka, Yoshikazu, Doll, Andrin, Staub, Urs
Understanding ultrafast magnetization dynamics on the microscopic level is of strong current interest due to the potential for applications in information storage. In recent years, the spin-lattice coupling has been recognized to be essential for ult
Externí odkaz:
http://arxiv.org/abs/2112.05961
Autor:
Celebrano, Michele1 (AUTHOR), Savoini, Matteo2 (AUTHOR), Biagioni, Paolo1 (AUTHOR), Della Valle, Giuseppe1 (AUTHOR), Pellegrini, Giovanni3 (AUTHOR), Cantoni, Matteo1 (AUTHOR), Rinaldi, Christian1 (AUTHOR), Cattoni, Andrea1 (AUTHOR), Petti, Daniela1 (AUTHOR), Bertacco, Riccardo1 (AUTHOR), Duò, Lamberto1 (AUTHOR), Finazzi, Marco1 (AUTHOR) marco.finazzi@polimi.it
Publikováno v:
Journal of the European Optical Society. 4/29/2024, Vol. 20 Issue 1, p1-7. 7p.
Autor:
Neugebauer, Martin J., Juraschek, Dominik M., Savoini, Matteo, Engeler, Pascal, Boie, Larissa, Abreu, Elsa, Spaldin, Nicola A., Johnson, Steven L.
Publikováno v:
Phys. Rev. Research 3, 013126 (2021)
In ionic Raman scattering, infrared-active phonons mediate a scattering process that results in the creation or destruction of a Raman-active phonon. This mechanism relies on nonlinear interactions between phonons and has in recent years been associa
Externí odkaz:
http://arxiv.org/abs/2010.12943