284 citations · 2.6k across the 65 of their papers we have counts for
10 papers · 1 filter
Photo-induced carrier dynamics in InSb probed with broadband THz spectroscopy based on BNA crystals
Elodie Iglesis, Alexandr Alekhin, Maximilien Cazayous +3
We report an optical pump - terahertz (THz) probe study of the photoinduced transient carrier dynamics in the low bandgap semiconductor Indium Antimonide (InSb). Using an organic N…
Non-collinear and strongly asymmetric polar moments at back-gated SrTiO3 interfaces
Fryderyk Lyzwa, Yurii G. Pashkevich, Premysl Marsik +15
The highly mobile electrons at the interface of SrTiO3 with other oxide insulators, such as LaAlO3 or AlOx, are of great current interest. A vertical gate voltage allows controllin…
Confined Magnons
Seamus Beairsto, Maximilien Cazayous, Randy S. Fishman +1
Magnetic structures are known to possess magnon excitations confined to their surfaces and interfaces, but these spatially localized modes are often not resolved in spectroscopy ex…
A switchable two-dimensional electron gas based on ferroelectric Ca:SrTiO
Julien Bréhin, Felix Trier, Luis M. Vicente-Arche +14
Two-dimensional electron gases (2DEGs) can form at the surface of oxides and semiconductors or in carefully designed quantum wells and interfaces. Depending on the shape of the con…
Size-dependent bistability in multiferroic nanoparticles
Marc Allen, Ian Aupiais, Maximilien Cazayous +1
Most multiferroic materials with coexisting ferroelectric and magnetic order exhibit cycloidal antiferromagnetism with wavelength of several nanometers. The prototypical example is…
Strain and Magnetic Field Induced Spin-Structure Transitions in Multiferroic BiFeO3
A. Agbelele, D. Sando, C. Toulouse +17
The magnetic-field-dependent spin ordering of strained BiFeO3 films is determined using nuclear resonant scattering and Raman spectroscopy. The critical field required to destroy t…
Temperature evolution of the band-gap in BiFeO3 traced by resonant Raman scattering
Mads Christof Weber, Mael Guennou, Constance Toulouse +4
Knowledge of the electronic band structure of multiferroic oxides, crucial for the understanding and tuning of photo-induced effects, remains very limited even in the model and tho…
Theory of spin-orbit enhanced electric-field control of magnetism in multiferroic BiFeO3
Rogerio de Sousa, Marc Allen, Maximilien Cazayous
We present a microscopic theory that shows the importance of spin-orbit coupling in perovskite compounds with heavy ions. In BiFeO3 (BFO) the spin-orbit coupling at the bismuth ion…
Magnetic field induced dehybridization of the electromagnons in multiferroic TbMnO3
P. Rovillain, M. Cazayous, Y. Gallais +4
We have studied the impact of the magnetic field on the electromagnon excitations in TbMnO3 crystal. Applying magnetic field along the c axis, we show that the electromagnons trans…
Electric-field control of spin waves at room temperature in multiferroic BiFeO3
P. Rovillain, R. de Sousa, Y. Gallais +7
To face the challenges lying beyond current CMOS-based technology, new paradigms for information processing are required. Magnonics proposes to use spin waves to carry and process…