Publications

Showing 6 results for Author: Arianna Minelli

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Aug, 2026

Journal

Atomic structure and formation mechanism of a newly discovered charge density wave in the m = 2 monophosphate tungsten bronze

The m = 2 member of the monophosphate tungsten bronze family had been thought to be the only one without an electronic instability at low temperature. In this paper, we report the discovery of a charge density wave phase in this compound, with a transition temperature of 290 K and an incommensurate modulation vector q = 0.245b* + ξc*, which reaches a lock-in with a commens…
Aug, 2026

Journal

Coupled intra- and inter-tunnel short-range order in hollandites: a case study of mannardite Ba[(Ti4+)6(V3+)2]O16

Mannardite, Ba[(Ti4+)6(V3+)2]O16, a mineral of the hollandite supergroup, is characterized by a tunnel structure built up from double chains of edge-sharing octahedra. It shows complex order/disorder phenomena that are often related to the occurrence of diffuse scattering, satellite reflections or both. So far, diffuse scattering features have been linked to ordering of la…
Jul, 2026

Journal

Emergent topological polarization textures in relaxor ferroelectrics

Relaxor ferroelectrics underpin high-performance actuators and sensors, yet the nature of polar heterogeneities driving their broadband dielectric response remains debated. Using a unified, multimodal structural refinement framework— simultaneously fitting complementary X-ray and neutron total scattering, X-ray absorption spectra, and diffuse scattering—we reconstruct 3D m…
Apr, 2026

Journal

Non-Altermagnetic Origin of Exchange Bias Behaviors in Incoherent RuO2/Fe Bilayer Heterostructures

Initially identified as a promising altermagnetic (AM) candidate, rutile RuO2 has since become embroiled in controversy due to contradictory findings of modeling and measurements of the magnetic properties of bulk crystals and thin films. For example, despite observations of a bulk nonmagnetic state using density functional theory, neutron scattering, and muon spin resonan…
Oct, 2025

Journal

Solving disorder in (3D) real space: a comparative study of the three-dimensional difference pair distribution function and atomic resolution holography reconstructions

The quantitative analysis of local ordering principles in disordered crystalline systems has gained much attention over the past few years, as it is often considered crucial for optimizing material functionality. This development has been driven by significant advancements in computational and experimental methods, which have led to the establishment and widespread use of…
Oct, 2024

Journal

Unravelling Disorder in Aperiodic Crystals – Diffuse Scattering and Atomic Resolution Holography

The atomic-scale disorder of aperiodic crystals, and quasicrystals in particular, is inherently difficult to explore by experimental methods due to their complex atomic arrangements. Two advanced characterization techniques, a revived and an emerging one, offer direct experimental access even to such complex atomic structures: Diffuse Scattering and Atomic Resolution Holog…

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Publications

Atomic structure and formation mechanism of a newly discovered charge density wave in the m = 2 monophosphate tungsten bronze

Coupled intra- and inter-tunnel short-range order in hollandites: a case study of mannardite Ba[(Ti4+)6(V3+)2]O16

Emergent topological polarization textures in relaxor ferroelectrics

Non-Altermagnetic Origin of Exchange Bias Behaviors in Incoherent RuO2/Fe Bilayer Heterostructures

Solving disorder in (3D) real space: a comparative study of the three-dimensional difference pair distribution function and atomic resolution holography reconstructions

Unravelling Disorder in Aperiodic Crystals – Diffuse Scattering and Atomic Resolution Holography