Tootfinder

Energy-Resolved EBSD using a Monolithic Direct Electron Detector
Nicol\`o M. Della Ventura, Kalani Moore, McLean P. Echlin, Matthew R. Begley, Tresa M. Pollock, Marc De Graef, Daniel S. Gianola
https://arxiv.org/abs/2507.20105

Energy-Resolved EBSD using a Monolithic Direct Electron Detector
Accurate quantification of the energy distribution of backscattered electrons (BSEs) contributing to electron backscatter diffraction (EBSD) patterns remains as an active challenge. This study introduces an energy-resolved EBSD methodology based on a monolithic active pixel sensor direct electron detector and an electron-counting algorithm to enable the energy quantification of individual BSEs, providing direct measurements of electron energy spectra within diffraction patterns. Following detec…

Following dismal results in Japan’s parliamentary elections,
there is a broad consensus among Japanese lawmakers and political analysts that
Prime Minister Shigeru Ishiba’s days are numbered.
No one, however, seems to have said that directly to Ishiba, who has vowed to stay on.
The current political crisis is the result of a July 20 election in Japan’s upper house -- the less-powerful chamber in parliament.
It has no direct role in determining the prime minister …

Japan’s LDP Is Teetering as Far-Right Challenger Emerges
The ruling party may not be ready for the social media age.

Eliciting User Requirements for AI-Enhanced Learning Environments using a Participatory Approach
Bibeg Limbu, Irene-Angelica Chounta, Vilma Sukacke, Andromachi Filippidi, Chara Spyropoulou, Marianna Anagnostopoulou, Eleftheria Tsourlidaki, Nikos Karacapilidis
https://arxiv.org/abs/2507.21088

Eliciting User Requirements for AI-Enhanced Learning Environments using a Participatory Approach
This paper explores the needs \& expectations of educational stakeholders for AI (Artificial Intelligence)-enhanced learning environments. Data was collected following two-phased participatory workshops. The first workshop outlined stakeholders' profiles in terms of technical and pedagogical characteristics. The qualitative data collected was analysed using deductive thematic analysis with Activity Theory, explicating the user needs. The second workshop articulated expectations related to the i…

Electric-field control of two-dimensional ferromagnetic properties by chiral ionic gating
Hideki Matsuoka, Amaki Moriyama, Tomohiro Hori, Yoshinori Tokura, Yoshihiro Iwasa, Shu Seki, Masayuki Suda, Naoya Kanazawa
https://arxiv.org/abs/2507.20723

Electric-field control of two-dimensional ferromagnetic properties by chiral ionic gating
Chiral molecular systems offer unique pathways to control spin and magnetism beyond conventional symmetry operations. Here, we demonstrate that chiral ionic liquids enable electric-field modulation of two-dimensional (2D) ferromagnetism in FeSi(111) thin films via electric double-layer transistor (EDLT) gating. FeSi hosts chemically-stable, surface-confined ferromagnetism without bulk moments, making the interfacial spins highly responsive to chiral-ion adsorption. Using both achiral and chiral…

Electromagnetic Formation Flying Using Alternating Magnetic Field Forces and Control Barrier Functions for State and Input Constraints
Sumit S. Kamat, T. Michael Seigler, Jesse B. Hoagg
https://arxiv.org/abs/2508.18501

Electromagnetic Formation Flying Using Alternating Magnetic Field Forces and Control Barrier Functions for State and Input Constraints
This article presents a feedback control algorithm for electromagnetic formation flying with constraints on the satellites' states and control inputs. The algorithm combines several key techniques. First, we use alternating magnetic field forces to decouple the electromagnetic forces between each pair of satellites in the formation. Each satellite's electromagnetic actuation system is driven by a sum of amplitude-modulated sinusoids, where amplitudes are controlled in order to prescribe the tim…

Scalable Etch-Free Transfer of Low-Dimensional Materials from Metal Films to Diverse Substrates
Kentaro Yumigeta (Department of Materials Science & Engineering, University of Arizona, Tucson, Arizona, USA), Muhammed Yusufoglu (Department of Materials Science & Engineering, University of Arizona, Tucson, Arizona, USA), Mamun Sarker (Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA), Rishi Raj (Department of Chemical Engineering and Materials Scienc…

Scalable Etch-Free Transfer of Low-Dimensional Materials from Metal Films to Diverse Substrates
Low-dimensional materials hold great promises for exploring emergent physical phenomena, nanoelectronics, and quantum technologies. Their synthesis often depends on catalytic metal films, from which the synthesized materials must be transferred to insulating substrates to enable device functionality and minimize interfacial interactions during quantum investigations. Conventional transfer methods, such as chemical etching or electrochemical delamination, degrade material quality, limit scalabil…

A Generic Platform for Designing Fractional Chern Insulators: Electrostatically Engineered Rashba Materials
Bokai Liang, Wei Qin, Zhenyu Zhang
https://arxiv.org/abs/2506.22173

A Generic Platform for Designing Fractional Chern Insulators: Electrostatically Engineered Rashba Materials
We present a generic platform for designing topological flat bands through applying an artificially designed electrostatic superlattice potential to a thin film with Rashba spin-orbit coupling. Utilizing many-body exact diagonalization, we show that the lowest flat band can host fractional Chern insulator states at filling factor $n = 1/3$ and $2/3$. Notably, these fractional charge states present robustly in a broad regime of the parameter space. We further discuss the potential realistic mate…

Electrode modified domain morphology in ferroelectric capacitors revealed by X-ray microscopy
Megan O. Hill Landberg, Bixin Yan, Huaiyu Chen, Efe Ipek, Morgan Trassin, Jesper Wallentin
https://arxiv.org/abs/2508.20925

Electrode modified domain morphology in ferroelectric capacitors revealed by X-ray microscopy
Ferroelectric thin films present a powerful platform for next generation computing and memory applications. However, domain morphology and dynamics in buried ferroelectric stacks have remained underexplored, despite the importance for real device performance. Here, nanoprobe X-ray diffraction (nano-XRD) is used to image ferroelectric domains inside BiFeO3-based capacitors, revealing striking differences from bare films such as local disorder in domain architecture and partial polarization reori…

Revival of Layered Ferroelectrics in Thin Films
Elzbieta Gradauskaite
https://arxiv.org/abs/2508.20742 https://arxiv.org/pdf/2508.20742

Revival of Layered Ferroelectrics in Thin Films
Layered perovskites are a versatile class of ferroelectrics with their structural anisotropy reflected in unusual electrostatics that give rise to exceptional ferroelectric properties. These materials fall into four main families: Aurivillius, Carpy-Galy, Ruddlesden-Popper, and Dion-Jacobson phases; each forming natural superlattices by interleaving perovskite slabs with spacer layers. For a long time, these materials were considered too structurally complex to prepare as high-quality thin film…

Control of polarization and polar chiral textures in BiFeO$_3$ by epitaxial strain and interfacial chemistry
Elzbieta Gradauskaite, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin
https://arxiv.org/abs/2508.20930

Control of polarization and polar chiral textures in BiFeO$_3$ by epitaxial strain and interfacial chemistry
The balance between interfacial chemistry, electrostatics, and epitaxial strain plays a crucial role in stabilizing polarization in ferroelectric thin films. Here, we bring these contributions into competition in BiFeO$_3$ (BFO) thin films grown on the charged-surface-terminated La$_{0.7}$Sr$_{0.3}$MnO$_3$ (LSMO)-buffered NdGaO$_3$ (001) substrates. The large anisotropic compressive strain from the substrate promotes the formation of ferroelectric domains despite the expected stabilization of a…