Tootfinder

Carlie Irsay-Gordon to serve as Indianapolis Colts principal owner following death of father, Jim Irsay https://www.nfl.com/news/carlie-irsay-gordon-to-serve-as-indianapolis-colts-principal-owner-following-d…

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…

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, …

Observation of superconductivity-induced leading-edge gap in Sr-doped $\mathrm{La}_{3}\mathrm{Ni}_{2}\mathrm{O}_{7}$ thin films
Wenjie Sun, Zhicheng Jiang, Bo Hao, Shengjun Yan, Hongyi Zhang, Maosen Wang, Yang Yang, Haoying Sun, Zhengtai Liu, Dianxiang Ji, Zhengbin Gu, Jian Zhou, Dawei Shen, Donglai Feng, Yuefeng Nie
https://arx…

Observation of superconductivity-induced leading-edge gap in Sr-doped $\mathrm{La}_{3}\mathrm{Ni}_{2}\mathrm{O}_{7}$ thin films
The discovery of high-temperature superconductivity in pressurized bulk $\mathrm{La}_{3}\mathrm{Ni}_{2}\mathrm{O}_{7}$ has ignited significant interest in nickelate superconductors. Unlike cuprates, where superconductivity predominantly originates from the $\mathrm{3}d_{x^2-y^2}$ orbital, nickelates exhibit additional complexities involving contributions from the $\mathrm{3}d_{z^2}$ orbital, prompting fundamental questions about their pairing mechanisms. Despite recent progress in stabilizing s…

"The TSA has an important job to do. Their actions at airports have been very poor. This creates lots of loss to travelers – waste. And their actions show a disrespect for people and the risks that exist. The security theater is not what we need. We need evidence based security measure while maintaining a focus on the value stream of people flying."

Majorana edge reconstruction and the $\nu=5/2$ non-Abelian thermal Hall puzzle
Tev\v{z} Lotri\v{c}, Taige Wang, Michael P. Zaletel, Steven H. Simon, S. A. Parameswaran
https://arxiv.org/abs/2507.07161

Majorana edge reconstruction and the $ν=5/2$ non-Abelian thermal Hall puzzle
Pioneering thermal transport measurements on two-dimensional electron gases in high magnetic fields have demonstrated that the quantized Hall state at filling factor $ν=5/2$ has a thermal Hall conductance $κ$ quantized in half-integer multiples of $κ_0 = {π^2 k_B^2 T}/{3h}$. Half-integer $κ/κ_0$ is a signature of neutral Majorana edge modes, in turn linked to the presence of non-Abelian anyon excitations in the bulk. However, the experimentally observed value of $κ$ corresponds to the 'P…

Here’s a mind-blowing experiment that you can try at home:
Gather some children’s blocks and place them on a table.
Take one block and slowly push it over the table’s edge, inch by inch, until it’s on the brink of falling.
If you possess patience and a steady hand, you should be able to balance it so that exactly half of it hangs off the edge.
Nudge it any farther, and gravity wins.
Now take two blocks and start over.
Stacking one on top of the other, how…

This Block-Stacking Math Problem Has a Preposterous Solution You Need to See to Believe — Scientific American
In principle, this impossible math allows for a glue-free bridge of stacked blocks that can stretch across the Grand Canyon—and into infinity Amanda Montañez Math Here’s a mind-blowing experiment that you can try at home: Gather some children’s blocks and place them on a table. Take one block and slowly push it over the table’s edge, inch by inch, until it’s on the brink of falling. If you possess patience and a steady hand, you should be able to balance it so that exactly half of it…

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 …

Permaculture Instructor Andrew Millison visits a site in Oregon that has installed an series of built ponds that have renewed the water supply in a dry valley. Thinking systemically to use the water falling from the sky to enrich land (instead of just quick runoff wasting all the water).
https://www.youtube.com/wat…

Disorder-induced suppression of superconductivity in infinite-layer nickelates
Abhishek Ranna, Romain Grasset, Martin Gonzalez, Kyuho Lee, Bai Yang Wang, Edgar Abarca Morales, Florian Theuss, Zuzanna H. Filipiak, Michal Moravec, Marcin Konczykowski, Harold Y. Hwang, Andrew P. Mackenzie, Berit H. Goodge
https://arxiv.org/abs/2506…

Disorder-induced suppression of superconductivity in infinite-layer nickelates
The pairing symmetry of superconducting infinite-layer nickelates is a fundamental yet experimentally challenging question. We employ high-energy electron irradiation to induce disorder in superconducting Nd$_{0.825}$Sr$_{0.175}$NiO$_2$ thin films and examine the impact of pair-breaking defects on superconductivity and elucidate the nature of the superconducting gap. Our measurements reveal a complete suppression of superconductivity with increasing disorder, suggesting an unconventional, sign-…