Tootfinder

2025 und ich muss hier seit über 2h in der Hausarztpraxis warten damit mir die Ärztin dann 2 Werte von einem Zettel abliest. Es geht um den 3jährlichen ü35 checkup.
Wieso geht das mittlerweile nicht remote? Die machen keine Untersuchungen oder so.
Stattdessen muss ich mir hier von Boomern ins Gesicht husten lassen. ffs
(Bin natürlich der einzige mit Maske)

"In a dystopian 1970s America, a fascist government is at war with Mexico. An underground revolutionary is tortured by government agents, so radicals take action through guerrilla warfare, but victory may not come easy for them."
The more you know!
https://www.imdb.com/title/tt0064465/

Optical absorption in hexagonal-diamond Si and Ge nanowires: insights from STEM-EELS experiments and ab initio theory
Luiz H. G. Tizei, Michele Re Fiorentin, Thomas Dursap, Theodorus M. van den Berg, Marc T\'unica, Maurizia Palummo, Mathieu Kociak, Laetitia Vincent, Michele Amato
https://arxiv.org/abs/2506.10543

Optical absorption in hexagonal-diamond Si and Ge nanowires: insights from STEM-EELS experiments and ab initio theory
Hexagonal-diamond (2H) group IV nanowires are key for advancing group IV-based lasers, quantum electronics, and photonics. Understanding their dielectric response is crucial for performance optimization, but their optical absorption properties remain unexplored. We present the first comprehensive study of optical absorption in 2H-Si and 2H-Ge nanowires, combining high-resolution STEM, monochromated EELS, and ab initio simulations. The nanowires, grown in situ in a TEM as nanobranches on GaAs st…

Isostructural electronic transition in MoS$_2$ probed by solid-state high harmonic generation spectroscopy
Bailey R. Nebgen, Victor Chang Lee, Jacob A. Spies, Randy M. Sterbentz, Craig P. Schwartz, Dean Smith, Diana Y. Qiu, Michael W. Zuerch
https://arxiv.org/abs/2506.14215

Isostructural electronic transition in MoS$_2$ probed by solid-state high harmonic generation spectroscopy
Studying materials under extreme pressure in diamond anvil cells (DACs) is key to discovering new states of matter, yet no method currently allows the direct measurement of the electronic structure in this environment. Solid-state high harmonic generation (sHHG) offers a new all-optical window into the electronic structure of materials. We demonstrate sHHG spectroscopy inside a DAC by probing $2H$-MoS$_2$, up to 30 GPa, revealing a pressure-induced crossover of the lowest direct bandgap from th…

Spatial correlations of charge density wave order across the transition in 2H-NbSe2
Seokjo Hong, Jaewhan Oh, Woohyun Cho, Soyoung Lee, Colin Ophus, Yeongkwan Kim, Heejun Yang, SungBin Lee, Yongsoo Yang
https://arxiv.org/abs/2506.02991

Spatial correlations of charge density wave order across the transition in 2H-NbSe2
Charge density waves (CDWs) involve coupled amplitude and phase degrees of freedom, but direct access to local amplitude correlations remains experimentally challenging. Here, we report cryogenic four-dimensional scanning transmission electron microscopy (4D-STEM) measurements of CDW ordering in 2H-NbSe2, enabled by liquid helium-based cooling down to 20 K. By mapping the spatial distribution of CDW superlattice intensities at nanometer-scale resolution and analyzing their autocorrelations, we …

Today I had a 1h meeting followed by 2h of code reading and DB forensics which resulted in a rather simple SQL query that, when run daily via cron, should remove the need for a manual step that an operator had to do regularily (and maybe did not do properly, but instread wasted an hour on dumb clicking instead).

This https://arxiv.org/abs/2506.00971 has been replaced.
link: https://scholar.google.com/scholar?q=a

Resonant Tunneling in Tri-layer 2H-MoTe2 grown by Molecular Beam Epitaxy Coupled with layered WSe2 carrier Reservoir
Here, we report a prominent quantum oscillation in the conductance of 2H-MoTe2 based resonant tunneling structure. In this work, a n-WSe2/HfO2/i-MoTe2/HfO2/Au resonant tunneling device (RTD) with a symmetric and asymmetric double barrier has been fabricated using Molecular Beam Epitaxy (MBE) grown 2H-MoTe2 and Chemical Vapor Deposition (CVD) grown 2H-WSe2 along with theoretical modeling by adopting non-equilibrium Green function (NEGF) formalism. The impact of MoTe2-quantum well widths equal, a…

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): III. Dust and Gas Disk Properties in the Lupus Star-forming Region
Dingshan Deng, Miguel Vioque, Ilaria Pascucci, Laura M. P\'erez, Ke Zhang, Nicol\'as T. Kurtovic, Leon Trapman, Estephani E. TorresVillanueva, Carolina Agurto-Gangas, John Carpenter, Paola Pinilla, Uma Gorti, Beno\^it Tabone, Anibal Sierra, Giovanni P. Rosotti, Lucas A. Cieza, Rossella Anania, Camilo Gonz\'alez-Ruilova, Michiel R. Hogerheijd…

The ALMA Survey of Gas Evolution of PROtoplanetary Disks (AGE-PRO): III. Dust and Gas Disk Properties in the Lupus Star-forming Region
We present Band 6 and Band 7 observations of 10 Lupus disks around M3-K6 stars from the ALMA survey of Gas Evolution in PROtoplanetary disks (AGE-PRO) Large Program. In addition to continuum emission in both bands, our Band 6 setup covers the $\mathrm{{}^{12}CO}$, $\mathrm{{}^{13}CO}$ and $\mathrm{C^{18}O}\,J$=2-1 lines, while our Band 7 setup covers the $\mathrm{N_2H^+}\,J$=3-2 line. All of our sources are detected in $\mathrm{{}^{12}CO}$ and $\mathrm{{}^{13}CO}$, 7 out of 10 are detected in $…

This https://arxiv.org/abs/2505.16779 has been replaced.
initial toot: https://mastoxiv.page/@a…

Phase engineering of MoS$_2$ monolayers: A pathway to enhanced lithium-polysulfide battery performance
This study explores the potential of MoS$_2$ polymorphs, specifically the semiconducting 2H phase and the metallic 1T$^\prime$ phase, as anchoring materials to enhance the electrochemical performance of lithium-sulfur (Li--S) batteries. Using density functional theory calculations, we show that 1T$^\prime$-MoS$_2$ exhibits stronger Li--S interactions, greater charge transfer, and enhanced catalytic activity compared to its 2H counterpart, effectively suppressing polysulfide dissolution and faci…

I think my traveling is cursed 😭
Whenever I take a longer trip by train and/or bus, something goes wrong or there is a sudden delay.
My wife can take the exact same connection, and everything goes smoothly.
It started when I wanted to move to Sweden almost 20 years ago and the bus never showed up, continued with getting stranded in Lahti (Finland) at 2 in the morning and needing to take a taxi for 2h with two other travellers, and currently I'm on my way to #Stockholm via #snalltaget and we're stuck in Malmö because they suddenly needed to get rid of two train cars.
#slowtravel #TrainTravel

Dual-mode superconducting diode effect enabled by in-plane and out-of-plane magnetic field
Chengyu Yan, Huai Guan, Zhenyu Zhang, Yiheng Sun, Qiao Chen, Xinming Zhao, Chuanwen Zhao, James Jun He, Shun Wang
https://arxiv.org/abs/2506.07354

Dual-mode superconducting diode effect enabled by in-plane and out-of-plane magnetic field
The discovery of the superconducting diode effect (SDE) has been cherished as a milestone in developing superconducting electronics. Tremendous efforts are being dedicated to realizing SDE in a wide variety of material platforms. Despite the diversity in the hosting materials and device designs, SDE is usually operated in a single mode which is enabled by either out-of-plane or in-plane magnetic field/magnetization. In this work, we report the realization of a dual-mode SDE in 2H-$\mathrm{NbS_2…

Influence of atomic-scale defects on coherent phonon excitations by THz near fields in an STM
Vibhuti N. Rai, Junyoung Sim, Florian Faaber, Nils Bogdanoff, Sergey Trishin, Paul Wiechers, Tom S. Seifert, Tobias Kampfrath, Christian Lotze, Katharina J. Franke
https://arxiv.org/abs/2506.08219…

Influence of atomic-scale defects on coherent phonon excitations by THz near fields in an STM
Coherent phonons describe the collective, ultrafast motion of atoms and play a central role in light-induced structural dynamics. Here, we employ terahertz scanning tunneling microscopy (THz-STM) to excite and detect coherent phonons in semiconducting 2H-MoTe$_{2}$ and resolve how their excitation is influenced by atomic-scale defects. In a THz pump-probe scheme, we observe long-lived oscillatory signals that we assign to out-of-plane breathing and in-plane shear modes, which are both forbidden…

Heute doch noch kurz vor Sonnenuntergang mit'm #Brompton #GLine #rausgeschafft für 11.1km #mdRddG in Richtun…

Tunable direct bandgap and optical response in \ch{Mo_{1-x}W_xS2} monolayer alloys: A first-principles investigation
Kevin Ndang Amassa, Jean-Pierre Tchapet Njafa, Anne Justine Etindele, Chetty Nithaya, Serge Guy Nana Engo
https://arxiv.org/abs/2506.01464

Tunable direct bandgap and optical response in \ch{Mo_{1-x}W_xS2} monolayer alloys: A first-principles investigation
This study presents a comprehensive first-principles investigation of the structural, electronic and optical properties of monolayer \ch{Mo_{1-x}W_xS2} alloys, systematically exploring the full compositional range ($x=0$ to $1$) using density functional theory (DFT). We establish that these alloys are thermodynamically stable and maintain the characteristic 2H crystal structure with minimal structural perturbation upon alloying. A key finding is the preservation of a direct bandgap at the $K$-p…