Tootfinder

Pressure-tunable phase transitions in atomically thin Chern insulator MnBi$_2$Te$_4$
Albin Marffy, Endre Tovari, Yu-Fei Liu, Anyuan Gao, Tianye Huang, Laszlo Oroszlany, Kenji Watanabe, Takashi Taniguchi, Su-Yang Xu, Peter Makk, Szabolcs Csonka
https://arxiv.org/abs/2507.17449

Pressure-tunable phase transitions in atomically thin Chern insulator MnBi$_2$Te$_4$
Topological insulators lacking time-reversal symmetry can exhibit the quantum anomalous Hall effect. Odd-layer thick MnBi$_2$Te$_4$ is a promising platform due to its intrinsic magnetic nature, however, quantization is rarely observed in it. Our magnetoresistance measurements in the anti-ferromagnetic phase indicate, instead of a quantum anomalous Hall insulator, the presence of a trivial insulator state likely due to disorder, while at high magnetic field a Chern insulator state appears. By ap…

Strong time-periodic solutions to a multilayered fluid-structure interaction problem
Felix Brandt, Claudiu M\^indril\u{a}, Arnab Roy
https://arxiv.org/abs/2507.07918

Strong time-periodic solutions to a multilayered fluid-structure interaction problem
This article studies a nonlinearly coupled, time-periodic fluid-structure interaction (FSI) problem involving the Navier-Stokes equations for an incompressible, viscous fluid coupled with a multilayered elastic structure consisting of a thin damped shell and a thick viscoelastic component. The main objective is to establish the existence of a strong time-periodic solution. To address the full nonlinear problem, we employ a fixed point argument, which relies on a detailed analysis of the lineari…

Development of non amplified Depleted MAPS sensors towards 50 ps timing resolution on charged particles
Raimon Casanova, Yavuz Degerli, Yujing Gan, Sebastian Grinstein, Fabrice Guilloux, Tomasz Hemperek, G. Huang, Jean-Pierre Meyer, Philippe Schwemling
https://arxiv.org/abs/2506.13999

Development of non amplified Depleted MAPS sensors towards 50 ps timing resolution on charged particles
The MiniCactus sensors are demonstrator sensors designed in LFoundry LF15A 150 nm technology, intended to study the performance of non amplified High Voltage High Resistivity CMOS sensors for measurement of time of arrival of charged particles. This paper presents the context, design features and some of the first test-beam results obtained with the latest MiniCactus sensor version, MiniCactus V2. With a 175 micron thick sensor biased at -350 V, we have obtained a 60 ps time resolution on Minim…

Soon, I’ll be throwing away all my desktop computers as well, though I’m keeping my Lenovo Thinkpad around. I hate computers, yet I use them.
To me, computers are just junk nobody asked for. They’re glowing traps that keep us hooked, scrolling and clicking away our time for endless feeds. No matter the OS or hardware, it’s all distraction from reality.
Yes, Linux can free us and all that, and even the hardware can be part of that freedom. But the computers themselves remain a cir…

Windowing in terahertz time-domain spectroscopy: resolving resonances in thin-film samples
Esteban Marulanda, Fernanda L. Costa, Nicolas M. Kawahala, Felix G. G. Hernandez
https://arxiv.org/abs/2507.00729

Windowing in terahertz time-domain spectroscopy: resolving resonances in thin-film samples
Terahertz time-domain spectroscopy (THz-TDS) has become a powerful tool for investigating the optical properties of thin films, offering direct access to the complex permittivity in the terahertz range. However, in transmission-based measurements of thin films on thick substrates, multiple reflections and limited time windows can introduce artifacts that obscure resonant features such as phonon modes. Time-domain windowing is widely employed to mitigate these effects, yet systematic guidelines …

#WritersCoffeeClub May 30. Who do you write for?
Me.
Or, the one I was when I discovered the thrill of thick, epic books with long adventures. I am still that person, just a little more pressed for time.

Tailored Thermal and Mechanical Performance of Biodegradable PLA-P(VDF-TrFE) Polymer Blends
G Suresh, B. Satyanarayana, C. Thirmal, Kaushal Jagarlamudi, T Komala, Jimlee Patowary, Ashutosh Kumar
https://arxiv.org/abs/2508.04662

Tailored Thermal and Mechanical Performance of Biodegradable PLA-P(VDF-TrFE) Polymer Blends
The development of polymer blends has emerged as a strategic approach for designing multifunctional materials with enhanced tailored characteristics. Current work investigates and reports for the first time, the structure-property relationships in free-standing blend films of poly(vinylidene fluoride-trifluoroethylene) (P(VDF-TrFE)) and polylactic acid (PLA), prepared to evaluate their suitability for functional applications. For this investigation, films of approximately 40 $μ$m thick were fa…

#WritersCoffeeClub May 30. Who do you write for?
Me.
Or, the one I was when I discovered the thrill of thick, epic books with long adventures. I am still that person, just a little more pressed for time.

High-reflectivity homoepitaxial distributed Bragg reflectors for photonic applications
Helena Janowska, Anna Musia{\l}, Grzegorz S\k{e}k
https://arxiv.org/abs/2507.20211 https:/…

High-reflectivity homoepitaxial distributed Bragg reflectors for photonic applications
Distributed Bragg reflectors (DBRs) are one of the basic photonic structures used to define microcavities for fundamental light-matter coupling studies, as well as to optimize performance of optoelectronic and photonic devices, e.g., lasers or non-classical light sources. The reflectivity of these structures depends critically on the refractive index contrast between the two quarter-wavelength thick layers constituting the DBR. At the same time, epitaxial fabrication process limits the choice o…

Innovative DC-coupled Resistive Silicon Detector for 4D tracking
R. Arcidiacono, G. Bardelli, M. Bartolini, M. Boscardin, N. Cartiglia, A. Cassese, M. Centis Vignali, T. Croci, M. Ferrero, A. Fondacci, O. Hammad Ali, M. Lizzo, L. Menzio, A. Morozzi, F. Moscatelli, D. Passeri, G. Paternoster, G. Sguazzoni, F. Siviero, V. Sola, L. Viliani
https://

Innovative DC-coupled Resistive Silicon Detector for 4D tracking
In the past 10 years, two design innovations, the introduction of low internal gain (LGAD) and of resistive read-out (RSD), have radically changed the performance of silicon detectors. The LGAD mechanism, increasing the signal-to-noise ratio by about a factor of 20, leads to improved time resolution (typically 30 ps for a 50-$μ$m thick sensor), while resistive read-out, sharing the collected charge among read-out electrodes, leads to excellent spatial resolution even using large pixels (about …