Tootfinder

Electrode modified domain morphology in ferroelectric capacitors revealed by X-ray microscopy
Megan O. Hill Landberg, Bixin Yan, Huaiyu Chen, Efe Ipek, Morgan Trassin, Jesper Wallentin
https://arxiv.org/abs/2508.20925

Electrode modified domain morphology in ferroelectric capacitors revealed by X-ray microscopy
Ferroelectric thin films present a powerful platform for next generation computing and memory applications. However, domain morphology and dynamics in buried ferroelectric stacks have remained underexplored, despite the importance for real device performance. Here, nanoprobe X-ray diffraction (nano-XRD) is used to image ferroelectric domains inside BiFeO3-based capacitors, revealing striking differences from bare films such as local disorder in domain architecture and partial polarization reori…

Probing the extent of WASP-52 b's atmosphere. High-resolution observations and 3D modeling insights
F. Nail, A. Oklop\v{c}i\'c, M. MacLeod, K. Baka, S. Czesla, E. Nagel, D. Linssen, J. Matthijsse
https://arxiv.org/abs/2508.20572

Probing the extent of WASP-52 b's atmosphere. High-resolution observations and 3D modeling insights
WASP-52 b is an inflated hot Jupiter with a large Roche lobe filling fraction, positioned in the hot Neptune desert. Previous in-transit observations of the helium triplet at 10833 A have reported a range of excess absorption values (1.5%-5.5%) and a lack of net blueshift relative to the planet's rest frame, distinguishing it from other escaping atmospheres. This study investigates the extent and morphology of material escaping from WASP-52 b, assessing whether its outflow resembles a stream-li…

Atomically thin silver films for enhanced nanoscale nonlinear optics
Philipp K. Jenke, Saad Abdullah, Andrew P. Weber, \'Alvaro Rodr\'iguez Echarri, Fadil Iyikanat, Vahagn Mkhitaryan, Frederik Schiller, J. Enrique Ortega, Philip Walther, F. Javier Garc\'ia de Abajo, Lee A. Rozema
https://arxiv.org/abs/2508.15417

Atomically thin silver films for enhanced nanoscale nonlinear optics
The inherently weak nonlinear optical response of bulk materials remains a fundamental limitation in advancing photonic technologies. Nanophotonics addresses this challenge by tailoring the size and morphology of nanostructures to manipulate the optical near field, thus modulating the nonlinear response. Here, we explore a complementary strategy based on engineering the electronic band structure in the mesoscopic regime to enhance optical nonlinearities. Specifically, we demonstrate an increase…

Controlling the magneto-transport properties of magnetic topological insulator thin films from Cr$_x$(Bi$_y\,$Sb$_{1-y}$)$_{2-x}$Te$_3$ via molecular beam epitaxy
Jan Karthein, Jonas Buchhorn, Kaycee Underwood, Abdur Rehman Jalil, Max Va{\ss}en-Carl, Peter Sch\"uffelgen, Detlev Gr\"utzmacher, Thomas Sch\"apers
https://

Controlling the magneto-transport properties of magnetic topological insulator thin films from Cr$_x$(Bi$_y\,$Sb$_{1-y}$)$_{2-x}$Te$_3$ via molecular beam epitaxy
In this work we present a systematic in-depth study of how we can alter the magneto-transport properties of magnetic topological insulator thin films by tuning the parameters of the molecular beam epitaxy. First, we show how a varying substrate temperature changes the surface morphology and when chosen properly leads to a high crystal quality. Next, the effect of the chromium concentration on the film roughness and crystal quality is investigated. Finally, both the substrate temperature and the…

Gary White, the #Buffalo custom hatter who made hats for Indiana Jones, The Untouchables, Marvelous Mrs. Maisel, and other films (and two for me), has died:
https://www.

Hats Off to Gary White, who Outfitted the stars with Custom Hats for Upwards of 50 Years - Buffalo Rising
Buffalo’s legendary custom hatter, Gary White, has passed away. White, who made hats for upwards of 50 years, was widely known for creating spec hats for the film industry, including notable films such as Dick Tracy, The Untouchables, Tombstone, and Indiana Jones. In a world where the art of making custom hats is becoming more and more obscure, Buffalo was certainly lucky to have Gary and his business – The Custom Hatter – around for so long. For decades, Gary

Detection of low-luminosity X-ray pulsations from the accreting millisecond pulsar IGR J17511-3057: an ever-thinning thread between bright accretion and sub-luminous states
Giulia Illiano, Alessandro Papitto, Sergio Campana, Alessio Marino, Arianna Miraval Zanon, Francesco Carotenuto, Francesco Coti Zelati, Maria Cristina Baglio, Filippo Ambrosino, Christian Malacaria, Caterina Ballocco, Gaurava K. Jaisawal, Marco M. Messa, Emilie Parent, Thomas D. Russell, Andrea Sanna, Anastasios Tzi…

Detection of low-luminosity X-ray pulsations from the accreting millisecond pulsar IGR J17511-3057: an ever-thinning thread between bright accretion and sub-luminous states
After nearly a decade in quiescence, the accreting millisecond pulsar IGR J17511$-$3057 displayed a new outburst on 2025 February 11, its third since discovery, following previous activity in 2009 and 2015. We report on an XMM-Newton Target of Opportunity observation performed on 2025 March 4, more than twenty days after the outburst onset. From the X-ray spectrum - well described by an absorbed Comptonization model - we estimated an unabsorbed 0.5$-$10 keV luminosity of $L_X \sim 7 \times 10^{…

Lattice Mismatch Driven In Plane Strain Engineering for Enhanced Upper Critical Fields in Mo2N Superconducting Thin Films
Aditya Singh, Divya Rawat, Victor Hjort, Abhisek Mishra, Arnaud le Febvrier, Subhankar Bedanta, Per Eklund, Ajay Soni
https://arxiv.org/abs/2506.04750

Lattice Mismatch Driven In Plane Strain Engineering for Enhanced Upper Critical Fields in Mo2N Superconducting Thin Films
Transition metal nitrides are a fascinating class of hard coating material that provide an excellent platform for investigating superconductivity and fundamental electron phonon interactions. In this work the structural morphological and superconducting properties have been studied for Mo2N thin films deposited via direct current magnetron sputtering on cplane Al2O3 and MgO substrates to elucidate the effect of internal strain on superconducting properties. High resolution X Ray diffraction and…

Phase Evolution and Substrate-Dependent Nucleation of Quartz GeO$_2$ Films Grown by MOCVD on r- and c-Plane Sapphires
Botong Li, Imteaz Rahaman, Hunter Ellis, Bobby G. Duersch, Kathy Anderson, Kai Fu
https://arxiv.org/abs/2506.09380

Phase Evolution and Substrate-Dependent Nucleation of Quartz GeO$_2$ Films Grown by MOCVD on r- and c-Plane Sapphires
Ultrawide-bandgap (UWBG) semiconductors, such as GeO$_2$, are gaining significant attention for their potential in high-performance applications, particularly in piezoelectric devices. Despite extensive research, a comprehensive understanding of the growth dynamics and phase evolution of GeO$_2$ films via metal-organic chemical vapor deposition (MOCVD) remains insufficient. In this study, we investigate the growth behavior and morphological evolution of GeO$_2$ thin films on r-plane and c-plane…

Unconventional superlattice ordering in intercalated transition metal dichalcogenide V$_{1/3}$NbS$_2$
Shannon S. Fender, Noah Schnitzer, Wuzhang Fang, Lopa Bhatt, Dingbin Huang, Amani Malik, Oscar Gonzalez, Veronika Sunko, Lilia S. Xie, David A. Muller, Joseph Orenstein, Yuan Ping, Berit H. Goodge, D. Kwabena Bediako
https://arx…

Unconventional superlattice ordering in intercalated transition metal dichalcogenide V$_{1/3}$NbS$_2$
The interplay between symmetry and topology in magnetic materials makes it possible to engineer exotic phases and technologically useful properties. A key requirement for these pursuits is achieving control over local crystallographic and magnetic structure, usually through sample morphology (such as synthesis of bulk crystals versus thin-films) and application of magnetic or electric fields. Here we show that V$_{1/3}$NbS$_2$ can be crystallized in two ordered superlattices, distinguished by t…