Tootfinder

A Rogue New Life Form
A tiny microbe discovered by accident challenges the definition of cellular life.
Very small amount of genetic material.
"...between archaea and virus...unlike a virus, Sukunaarchaeum has its own ribosomes, cellular structures that synthesize proteins, and it can replicate itself without the help of a host."

A Rogue New Life Form
A tiny microbe discovered by accident challenges the definition of cellular life

Just found the video again of an old experiment from 2009, showcasing the volumetric voxel brush and mesh conversion of my Java geometry libraries. Even though it's very different, but as for the overall aesthetics, this is the first thing I thought of when seeing the White Tower...
https://mastodon.thi.ng…

An array of bulk-acoustic-wave sensors as a high-frequency antenna for gravitational waves
G. Albani, M. Borghesi, L. Canonica, R. Carobene, F. De Guio, M. Faverzani, E. Ferri, R. Gerosa, A. Ghezzi, A. Giachero, C. Gotti, D. Labranca, L. Mariani, A. Nucciotti, G. Pessina, D. Rozza, T. Tabarelli de Fatis
https://arxiv.org/abs/250…

An array of bulk-acoustic-wave sensors as a high-frequency antenna for gravitational waves
In their simplest form, bulk acoustic wave (BAW) devices consist of a piezoelectric crystal between two electrodes that transduce the material's vibrations into electrical signals. They are adopted in frequency control and metrology, with well-established standards at frequencies of 5~MHz and above. Their use as a resonant-mass strain antenna for high-frequency gravitational waves has been recently proposed (Goryachev and Tobar, 2014). The estimated power spectral density sensitivity at the res…

Exciton photoemission from a ground state of a solid Ta2Pd3Te5
Siwon Lee, Kyung-Hwan Jin, SeongJin Kwon, Hyunjin Jung, Choongjae Won, Sang-Wook Cheong, Gil Young Cho, Jaeyoung Kim, Han Woong Yeom
https://arxiv.org/abs/2507.16453

Exciton photoemission from a ground state of a solid Ta2Pd3Te5
Excitons are bosonic quasiparticles with a variety of applications in optoelectronics, photosyn thesis, and dissipationless informatics, and their lifetime can become sufficiently long to form a quantum condensate. While exciton condensation has been predicted to occur as a ground state of a solid, so called an excitonic insulator, whose material realization has been elusive. Here we report the observation of direct photoemission signals from excitons in a ground state of a very recent excitoni…

Layer-selective Cooper pairing in an alternately stacked transition metal dichalcogenide
Haojie Guo, Sandra Sajan, Iri\'an S\'anchez-Ram\'irez, Tarushi Agarwal, Alejandro Blanco Peces, Chandan Patra, Maia G. Vergniory, Rafael M. Fernandes, Ravi Prakash Singh, Fernando de Juan, Maria N. Gastiasoro, Miguel M. Ugeda
https://

Layer-selective Cooper pairing in an alternately stacked transition metal dichalcogenide
Multigap superconductivity emerges when superconducting gaps form on distinct Fermi surfaces. Arising from locally overlapping atomic orbitals, multiple superconducting bands introduce a new internal degree of freedom in the material that, however, escapes external control due to their coexistence in real space in the known multigap superconductors. Here, we show that the layered superconductor 4Hb-TaSSe - composed of alternating trigonal (H) and octahedral (T) polymorph layers - is a multigap …

Cyclic loading of a heterogeneous non-linear poroelastic material
Zoe C. Godard, Derek E. Moulton, Sarah L. Waters
https://arxiv.org/abs/2506.05524 https:/…

Cyclic loading of a heterogeneous non-linear poroelastic material
Cyclic loading is a common feature in poroelastic systems, the material response depending non-trivially on the exact form of boundary conditions, pore structure, and mechanical properties. The situation becomes more complex when heterogeneity is introduced in the properties of the poroelastic material, yet heterogeneity too is common in physical poroelastic structures. In this paper, we analyse the behaviour of a soft porous material in response to a uniaxial cyclic stress or displacement, wit…

A 15 Mpc rotating galaxy filament at redshift z = 0.032
Madalina N. Tudorache, S. L. Jung, M. J. Jarvis, I. Heywood, A. A. Ponomareva, A. Varasteanu, N. Maddox, T. Yasin, M. Glowacki
https://arxiv.org/abs/2508.13053

A 15 Mpc rotating galaxy filament at redshift z = 0.032
Understanding the cold atomic hydrogen gas (HI) within cosmic filaments has the potential to pin down the relationship between the low density gas in the cosmic web and how the galaxies that lie within it grow using this material. We report the discovery of a cosmic filament using 14 HI-selected galaxies that form a very thin elongated structure of 1.7 Mpc. These galaxies are embedded within a much larger cosmic web filament, traced by optical galaxies, that spans at least $\sim 15$~Mpc. We fin…

On the Intensity-based Inversion Method for Quantitative Quasi-Static Elastography
Ekaterina Sherina, Simon Hubmer
https://arxiv.org/abs/2507.01207 https:/…

On the Intensity-based Inversion Method for Quantitative Quasi-Static Elastography
In this paper, we consider the intensity-based inversion method (IIM) for quantitative material parameter estimation in quasi-static elastography. In particular, we consider the problem of estimating the material parameters of a given sample from two internal measurements, one obtained before and one after applying some form of deformation. These internal measurements can be obtained via any imaging modality of choice, for example ultrasound, optical coherence or photo-acoustic tomography. Comp…

Can tidal evolution lead to close-in planetary bodies around white dwarfs II: volcanism and transits
Yuqi Li, Amy Bonsor, Oliver Shorttle
https://arxiv.org/abs/2506.20316

Can tidal evolution lead to close-in planetary bodies around white dwarfs II: volcanism and transits
Planetary material accreted by white dwarfs provides unique insights regarding exoplanetary composition. The evolutionary pathways of planetary bodies around white dwarfs are crucial to understanding the presence of close-in planetary material, observed in the form of pollutants in the atmospheres of white dwarfs and planetary material transiting white dwarfs. Periodic transits around white dwarfs potentially reveal the existence of close-in planetary bodies undergoing dust production. Tidal in…

Constraining the physical structure of the circumstellar environment of V838 Monocerotis remnant
Muhammad Zain Mobeen, Tomasz Kami\'nski, Stephen Potter
https://arxiv.org/abs/2506.02812

Constraining the physical structure of the circumstellar environment of V838 Monocerotis remnant
V838 Monocerotis (V838 Mon) erupted in 2002 as a luminous red nova after which it cooled and began to form dust. The remnant is predicted to become a blue straggler. Interferometric observations in the HKLM bands have uncovered a stable bipolar feature in the closest vicinity of the remnant star. We aim to constrain the physical structure and nature of the circumstellar material immediately surrounding V838 Mon. Using the radiative-transfer code RADMC3D we managed to constrain the dust density …

Robust Ferroelectricity in Silicon Dioxide upon Intercalation of Ammonia
Yaxin Gao, Menghao Wu, Jun-Ming Liu
https://arxiv.org/abs/2507.00804 https://

Robust Ferroelectricity in Silicon Dioxide upon Intercalation of Ammonia
The nanoelectronic applications of current ferroelectrics have been greatly impeded by their incompatibility with silicon. In this paper we propose a way to induce ferroelectricity in silicon dioxide (SiO2), which is still the most widely used dielectric material in silicon-based chips. We show first-principles evidence that the intercalation of NH3 molecules into crystalline SiO2 is exothermic, where NH3 molecules form quasi-bonds with SiO2, giving rise to large and robust polarizations. In ge…

Identifying vortex lattice in type-II superconductors via the dynamic magnetostrictive effect
Peipei Lu, Mengju Yuan, Jing Zhang, Qiang Gao, Shuang Liu, Yugang Zhang, Shipeng Shen, Long Zhang, Jun Lu, Xiaoyuan Zhou, Mingquan He, Aifeng Wang, Yang Li, Wenshan Hong, Shiliang Li, Huiqian Luo, Xingjiang Zhou, Xianhui Chen, Young Sun, Yisheng Chai
https:/…

Identifying vortex lattice in type-II superconductors via the dynamic magnetostrictive effect
In type-I superconductors, zero electrical resistivity and perfect diamagnetism define two fundamental criteria for superconducting behavior. In contrast, type-II superconductors exhibit more complex mixed-state physics, where magnetic flux penetrates the material above the lower critical field Hc1 in the form of quantized vortices, each carrying a single flux quantum. These vortices form a two-dimensional lattice which persists up to another irreversible field (Hirr) and then melts into a diss…

Compact broadband thermal absorbers based on plasmonic fractal metasurfaces
Romil Audhkhasi, Virat Tara, Raymond Yu, Michelle L. Povinelli, Arka Majumdar
https://arxiv.org/abs/2506.20905

Compact broadband thermal absorbers based on plasmonic fractal metasurfaces
The ability to efficiently absorb thermal radiation within a small material volume is crucial for the realization of compact and high spatial resolution thermal imagers. Here we propose and experimentally demonstrate a compact plasmonic metasurface for broadband absorption in the 6 to 14 microns wavelength range. As opposed to previous works, our metasurface leverages strongly localized electromagnetic modes to achieve high absorption within a compact form factor. We numerically investigate the…

Local three-dimensional simulations of the convective overstability in protoplanetary discs
Robert J. Teed, Henrik N. Latter
https://arxiv.org/abs/2508.03557 https://

Local three-dimensional simulations of the convective overstability in protoplanetary discs
At certain radii protoplanetary discs may sustain a form of oscillatory convection (`convective overstability'; COS) due to localised adverse entropy gradients. The resulting hydrodynamical activity can produce coherent structures, such as zonal flows and vortices, that may concentrate solid material and aid their further coagulation. In this paper we extend previous axisymmetric runs by performing local three-dimensional simulations of the COS, using the code SNOOPY. As parameters are varied, …

This https://arxiv.org/abs/2412.05219 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Structural characterization of the candidate Weyl semimetal CeGaGe
Weyl semimetals have a variety of intriguing physical properties, including topologically protected electronic states that coexist with conducting states. Possible exploitation of topologically protected states in a conducting material is promising for technological applications. Weyl semimetals that form in a noncentrosymmetric structure that also contain magnetic moments may host a variety of emergent phenomena that cannot be seen in magnetic, centrosymmetric Weyl materials. It can be difficu…

This https://arxiv.org/abs/2502.08698 has been replaced.
initial toot: https://mastoxiv.page/@arX…

The Saga of $α$-RuCl$_3$: Parameters, Models, and Phase Diagrams
RuCl$_3$ was likely the first ever deliberately synthesized ruthenium compound, following the discovery of the $_{44}$Ru element in 1844. For a long time it was known as an oxidation catalyst, with its physical properties being discrepant and confusing, until a decade ago when its allotropic form $α$-RuCl$_3$ rose to exceptional prominence. This "re-discovery" of $α$-RuCl$_3$ has not only reshaped the hunt for a material manifestation of the Kitaev spin liquid, but it has opened the floodgate…