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3 August 2021 Ultrafast spin-charge interconversion in Rashba states probed by time-domain THz spectroscopy
Jacques Hawecker, Enzo Rongione, Laëtitia Baringthon, Thi-Huong Dang, Giovanni G. Baez Flores, Duy-Quang TO, Juan-Carlos Rojas-Sánchez, Nong Hanond, Juliette Mangeney, Jerome Tignon, Florian Godel, Sophie Collin, Pierre Seneor, Nicolas Reyren, Manuel Bibes, Albert Fert, Abdelmadjid Anane, Jean-Marie George, Laurent Vila, Cosset-Cheneau Maxen, Vincent Cros, Agnès Barthélemy, Daniel Dolfi, Romain Lebrun, Paolo Bortolotti, Kirill D. Belashchenko, Sukhdeep Dhillon, Henri Jaffrès, Luca Perfetti, Henri-Jean Drouhin, Yannis Laplace, Romain Grasset, Jingwei Dong, Patrick Le Fèvre, Gilles Patriarche, Aristide Lemaître, Athanasios Dimoulas, Claudia Felser
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Proceedings Volume 11805, Spintronics XIV; 118050L (2021) https://doi.org/10.1117/12.2594133
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States
Abstract
THz emission spectroscopy reveals to be a very powerful experimental method to investigate the properties of Rashba or topological insulator surface states. The THz emission can be also used in heavy metallic or in more general Rashba systems. We prove here the ability of the present method. In 3d/5d transient metal bilayers and beyond heavy metal structures, Rashba states and Topological insulators are expected candidates for spintronic-terahertz domains due to their high spin to charge conversion properties. In this scheme, we are interested in the samples based on 2D electron gas, topological insulators and Heusler alloys with strong spin-orbit coupling.
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Jacques Hawecker, Enzo Rongione, Laëtitia Baringthon, Thi-Huong Dang, Giovanni G. Baez Flores, Duy-Quang TO, Juan-Carlos Rojas-Sánchez, Nong Hanond, Juliette Mangeney, Jerome Tignon, Florian Godel, Sophie Collin, Pierre Seneor, Nicolas Reyren, Manuel Bibes, Albert Fert, Abdelmadjid Anane, Jean-Marie George, Laurent Vila, Cosset-Cheneau Maxen, Vincent Cros, Agnès Barthélemy, Daniel Dolfi, Romain Lebrun, Paolo Bortolotti, Kirill D. Belashchenko, Sukhdeep Dhillon, Henri Jaffrès, Luca Perfetti, Henri-Jean Drouhin, Yannis Laplace, Romain Grasset, Jingwei Dong, Patrick Le Fèvre, Gilles Patriarche, Aristide Lemaître, Athanasios Dimoulas, and Claudia Felser "Ultrafast spin-charge interconversion in Rashba states probed by time-domain THz spectroscopy", Proc. SPIE 11805, Spintronics XIV, 118050L (3 August 2021); https://doi.org/10.1117/12.2594133
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KEYWORDS
Terahertz radiation
Spectroscopy
Ultrafast laser spectroscopy
Ferromagnetics
Iron
Metals
Physics
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