Bulk-suppressed and surface-sensitive Raman scattering by transferable plasmonic membranes with irregular slot-shaped nanopores

Autor: Roman M. Wyss, Günter Kewes, Pietro Marabotti, Stefan M. Koepfli, Karl-Philipp Schlichting, Markus Parzefall, Eric Bonvin, Martin F. Sarott, Morgan Trassin, Maximilian Oezkent, Chen-Hsun Lu, Kevin-P. Gradwohl, Thomas Perrault, Lala Habibova, Giorgia Marcelli, Marcela Giraldo, Jan Vermant, Lukas Novotny, Martin Frimmer, Mads C. Weber, Sebastian Heeg

Publikováno v: Nature Communications, Vol 15, Iss 1, Pp 1-11 (2024)

Abstract Raman spectroscopy enables the non-destructive characterization of chemical composition, crystallinity, defects, or strain in countless materials. However, the Raman response of surfaces or thin films is often weak and obscured by dominant b

Externí odkaz: https://doaj.org/article/f552e9180d2c4b819528bb9b65a64ade

Magnetoelectric coupling of domains, domain walls and vortices in a multiferroic with independent magnetic and electric order

Autor: Marcela Giraldo, Quintin N. Meier, Amadé Bortis, Dominik Nowak, Nicola A. Spaldin, Manfred Fiebig, Mads C. Weber, Thomas Lottermoser

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-7 (2021)

In h-RMnO3, the linear magnetoelectric effect is symmetry forbidden. Here, the authors show a pronounced magnetoelectric coupling driven by superexchange interaction giving rise to types of topological defects like magnetoelectric domain walls and vo

Externí odkaz: https://doaj.org/article/f1d43e25f82f4b5297daf3b2c8453abf

Vibrational properties of LaNiO3 films in the ultrathin regime

Autor: Alexander Schober, Jennifer Fowlie, Mael Guennou, Mads C. Weber, Hongjian Zhao, Jorge Íñiguez, Marta Gibert, Jean-Marc Triscone, Jens Kreisel

Publikováno v: APL Materials, Vol 8, Iss 6, Pp 061102-061102-7 (2020)

Collective rotations and tilts of oxygen polyhedra play a crucial role in the physical properties of complex oxides such as magnetism and conductivity. Such rotations can be tuned by preparing thin films in which dimensionality, strain, and interface

Externí odkaz: https://doaj.org/article/5a0125f37368412aaac0dfecf705e354

Metastable disordered phase in flash-frozen Prussian Blue analogues

Autor: Yevheniia Kholina, Janine Dössegger, Mads C. Weber, Arkadiy Simonov

Publikováno v: Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials, 78 (Part 3, Number 1)

A new metastable phase in flash-frozen disordered Prussian blue analogues is reported. The phase is characterised by the appearance of diffuse scattering clouds and the reduction of the local structure symmetry: from cubic to a tetragonal or lower sp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2849bd762e86d9594e46bdea5a77f43e
https://doi.org/10.1107/s2052520622001275

Interconversion of multiferroic domains and domain walls

Autor: Manfred Fiebig, E. Hassanpour, Yoshinori Tokura, Andres Cano, Amadé Bortis, Lukas Kuerten, Yannik Zemp, Mads C. Weber, Yasujiro Taguchi, Yusuke Tokunaga, Th. Lottermoser

Publikováno v: Nature Communications, 12 (1)
Nature Communications
Nature Communications, Nature Publishing Group, 2021, 12, pp.2755. ⟨10.1038/s41467-021-22808-7⟩
Nature Communications, Vol 12, Iss 1, Pp 1-6 (2021)

Systems with long-range order like ferromagnetism or ferroelectricity exhibit uniform, yet differently oriented three-dimensional regions called domains that are separated by two-dimensional topological defects termed domain walls. A change of the or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31b77386f11b7204e26a476643eb112a
https://hdl.handle.net/20.500.11850/485878