Tootfinder

This https://arxiv.org/abs/2412.04207 has been replaced.
initial toot: https://mastoxiv.page/@a…

Four-fold Anisotropic Magnetoresistance in Antiferromagnetic Epitaxial Thin Films of MnPt$_{x}$Pd$_{1-x}$
Antiferromagnets are emerging as promising alternatives to ferromagnets in spintronics applications. A key feature of antiferromagnets is their anisotropic magnetoresistance (AMR), which has the potential to serve as a sensitive marker for the antiferromagnetic order parameter. However, the underlying origins of this behavior remains poorly understood, particularly, in thin film geometries. In this study, we report the observation of AMR in epitaxial thin films of the collinear L1$_{0}$ antifer…

New resonances at LHC
Alain Le Yaouanc, Fran\c{c}ois Richard
https://arxiv.org/abs/2506.09490 https://arxiv.org/pdf/2506.09490…

New resonances at LHC
Due to the large QCD background, the tt spectroscopy is poorly doing at LHC with the exception of a toponium type candidate observed with high statistical significance by CMS. Our previous work offers an alternate interpretation of this narrow resonance as a Kaluza Klein graviton. For heavy scalars, following ATLAS, we describe how the top loop contribution to the gluon-gluon fusion mechanisms could produce a dip rather than a bump in the mass distribution, which further complicates searches fo…

In situ impedance spectroscopy tests of Li$_{4-x}$Ge$_{1-x}$P$_x$O$_4$ as potential solid state electrolyte for Micro Li ion Batteries
Mohammadhossein Montazerian, Kyle J. Stephens, Vladimir Roddatis, Christof Vockenhuber, Arnold M\"uller, Anders J. Barlow, Thomas Lippert, Nick A. Shepelin, Daniele Pergolesi
https://arxiv.o…

In situ impedance spectroscopy tests of Li$_{4-x}$Ge$_{1-x}$P$_x$O$_4$ as potential solid state electrolyte for Micro Li ion Batteries
Lithium-ion batteries employing solid-state electrolytes (SSEs) are emerging as a safer and more compact alternative to conventional batteries using liquid electrolytes, especially for miniaturized energy storage systems. However, the industry-standard SSE, LiPON, imposes limitations due to its incompatibility with high-temperature processing. In this study, we investigate Li$_{4-x}$Ge$_{1-x}$P$_x$O$_4$ (LGPO), a LISICON-type oxide, as a promising alternative thin-film SSE. LGPO thin films are …

Beyond Scalars: Zonotope-Valued Utility for Representation of Multidimensional Incomplete Preferences
Behrooz Moosavi Ramezanzadeh
https://arxiv.org/abs/2507.05844

Beyond Scalars: Zonotope-Valued Utility for Representation of Multidimensional Incomplete Preferences
In this paper, I propose a new framework for representing multidimensional incomplete preferences through zonotope-valued utilities, addressing the shortcomings of traditional scalar and vector-based models in decision theory. Traditional approaches assign single numerical values to alternatives, failing to capture the complexity of preferences where alternatives remainmain incomparable due to conflicting criteria across multiple dimensions. Our method maps each alternative to a zonotope, a con…

Character degrees in principal blocks for distinct primes
Annika Bartelt
https://arxiv.org/abs/2506.06860 https://arxiv.org/pdf/2506.…

Character degrees in principal blocks for distinct primes
Let $G$ be a finite group of order divisible by two distinct primes $p$ and $q$. We show that $G$ possesses a non-trivial irreducible character of degree not divisible by $p$ nor $q$ lying in both the principal $p$- and $q$-block whenever $G$ is one of the following: an alternating group $\mathfrak{A}_n$, $n\geq 4$, a symmetric group $\mathfrak{S}_n$, $n\geq 3$, or a finite simple classical group of type A, B, or C, defined in characteristic distinct from $p$ and $q$. This extends earlier resul…

A non-face characterization of spheres on few vertices
Shuai Huang, Jasper Miller, Daniel Rose-Levine, Steven Simon
https://arxiv.org/abs/2507.06120 https:…

A non-face characterization of spheres on few vertices
We give a relatively simple characterization of simplicial $d$-spheres on $d+4$ vertices; our criteria are in terms of the intersection patterns of a simplicial complex's minimal non-faces. Namely, let $Σ$ be a simplicial complex with vertex set $[d+4]$ and let $\mathcal{F}=\{A_0,\ldots, A_{n-1}\}$ be its family of minimal non-faces, indices taken in $\mathbb{Z}_n$. Then $Σ$ is a $d$-sphere if and only if the following hold: $n\geq 3$ is odd, successive $A_i$ are disjoint, and the alternating…

Was für ein Verlust für die Kölner Kinoszene. Bernhard Marsch, zentrale Figur des Filmclub 813, ist Sonntagabend bei einem Unfall verstorben.
https://www.filmstiftung.de/news/bernhard-marsch-verstorben/

Bernhard Marsch verstorben - Film und Medien Stiftung NRW
Der Kölner Regisseur, Drehbuchautor, Filmproduzent und Schauspieler Bernhard Marsch ist überraschend bei einem tragischen Unfall im Alter von 63 Jahren verstorben.Der 1962 geborene Filmemacher war eine engagierte Persönlichkeit der Kölner Filmszene. 1990 gehörte Marsch zu den Gründungsmitgliedern des Filmclub 813, dessen langjähriger Vorsitzender er war. Der Filmclub wurde mehrfach mit dem Kinematheksverbundspreis ausgezeichnet und gilt als fester Bestandteil der Kölner Filmkultur.

Reversible Modification of Rashba States in Topological Insulators at Room Temperature by Edge Functionalization
Wonhee Ko, Seoung-Hun Kang, Qiangsheng Lu, An-Hsi Chen, Gyula Eres, Ho Nyung Lee, Young-Kyun Kwon, Robert G. Moore, Mina Yoon, Matthew Brahlek
https://arxiv.org/abs/2507.06984…

Reversible Modification of Rashba States in Topological Insulators at Room Temperature by Edge Functionalization
Quantum materials with novel spin textures from strong spin-orbit coupling (SOC) are essential components for a wide array of proposed spintronic devices. Topological insulators have necessary strong SOC that imposes a unique spin texture on topological states and Rashba states that arise on the boundary, but there is no established methodology to control the spin texture reversibly. Here, we demonstrate that functionalizing Bi2Se3 films by altering the step-edge termination directly changes th…

Once again: #FuckEricAdams
Unbelievable how he's managed to avoid jailtime breaking federal/state laws while City Council allows him to continue to break _their_laws as well.

https://…

No to 15 mph e-bike speed limit, yes to real safety! - Transportation Alternatives
A ridiculous 15 mph speed limit for e-bikes won't work. Tell Mayor Adams and City Council: We need effective, data-driven policies that protect everyone, and accountability for the corporations fueling chaos on our streets — not the cyclists surviving it.

Ferroelectric switching of quantum anomalous Hall effects in MnBi2Te4 films
Jiaheng Li, Quansheng Wu, Hongming Weng
https://arxiv.org/abs/2506.07653 https:…

Ferroelectric switching of quantum anomalous Hall effects in MnBi2Te4 films
The integration of ferroelectric and topological materials offers a promising avenue for advancing the development of quantum material devices. In this work, we explore the strong coupling between topological states and ferroelectricity in the heterostructure formed by interfacing MnBi2Te4 (MBT) thin films and monolayer In2Te3. Our first-principles calculations demonstrate that the polarization direction in In2Te3 can strongly alter electronic band structures in the MBT/In2Te3 heterostructure, …