FZU - Institute of Physics of the Czech Academy of Sciences

First-principles electronic transport properties of Ti and Ti-6Al-4V for modeling ultrashort-pulse laser ablation

Predictive modeling of ultrashort-pulse laser ablation requires temperature-dependent material parameters derived from the electronic structure, namely the electronic thermal conductivity, electron-phonon coupling, and heat capacity. These parameters are well documented for eleme...

Electron‑Sponge S‑Scheme Heterojunctions via Mo–N Bridging Enable Highly Selective Photocatalytic CO 2 Methanation

ABSTRACT The kinetic limitations of multi‐electron transfer present a fundamental challenge to achieve selective CO 2 photoreduction to CH 4 . This work pioneers an interface electron‐flux intensification strategy by constructing a Mo–N‐bridged S‐scheme phosphomolybdic acid (PMA)...

On-Surface Synthesis of a Low Bandgap Cyclopenta[ c , d ]azulene-Based Polymer

Abstract Nonbenzenoid topologies offer a compelling strategy to tailor the electronic properties of low-dimensional carbon materials. Here, we report the on-surface synthesis of a nonalternant polymer incorporating a [7–5–5] cyclopenta[c,d]azulene (CPA) motif on Au(111) via therm...

A low-threshold mechanoluminescence platform for broadband NIR emission and obstruction-penetrating optical communication

Broadband near-infrared (NIR) luminescent materials are highly sought after for next-generation optoelectronics under dim or invisible conditions, yet simultaneously achieving broadband NIR emission, strong low-threshold mechanoluminescence (ML), and self-recoverable mechano-opti...

Atom‐Precision Synthesis of MoS 2 /WS 2 Lateral Heterostructures for Prolonged Excitonic Lifetime

ABSTRACT Transition metal dichalcogenide (TMD) lateral heterostructures provide unique platforms to study nanoscale physics, but progress is limited by the difficulty of producing high‐quality interfaces, which require atomic‐precision growth rather than simple stacking. We repor...

Atomic‐Scale Control of Substrate‐Spin Coupling Via Vertical Manipulation of a 2D Metal‐Organic Framework

Two-dimensional (2D) materials with frustrated crystal geometries can host strongly correlated electrons, potentially leading to a range of exotic many-body quantum phases, such as Mott insulators, quantum spin-liquids, and Kondo lattices. The ability to control exchange-coupling...

Host–Dopant Engineering of Ce 4+ ‐Dominant Y 3 (Al,Ga) 5 O 12 :Ce,Mg Scintillators for High‐Performance X‐Ray Imaging

ABSTRACT Fast scintillators are essential for advanced X‐ray imaging and time‐of‐flight techniques. Although stabilizing Ce 4+ ions in garnet hosts is an effective strategy for suppressing the afterglow and accelerating scintillation, it often introduces quenching pathways that r...

Development of ultrafast and radiation-hard GAGG for the next-generation of High-Energy Physics calorimeters

The evolution of High Energy Physics (HEP) toward future collider experiments with High Luminosity (HL), such as the HL-LHC, requires the development of scintillating materials that combine high density, excellent radiation hardness and an ultrafast response. While Cerium-doped G...

Realization of Quantum Spin Hall Insulator Superlattice with Emergent Multigap‐Like Helical Edge States

ABSTRACT The functional quantum spin Hall insulators (QSHI), protected by time‐reversal symmetry against single‐particle backscattering, hold great promise for dissipationless quantum electronics. Realization of QSHI with gapped helical edge states, which would enable determinist...

THz-driven scanning tunneling-induced luminescence: a brief review

Terahertz-lightwave-driven scanning tunneling microscopy (THz-STM) enables femtosecond control of tunneling currents by transiently gating the junction bias with single-cycle THz pulses. STM-induced luminescence (STML), on the other hand, provides spectrally resolved optical acce...

PDF evolution in alternative factorisation schemes

Abstract Beyond leading order, parton distribution functions (PDFs) require a choice of factorisation scheme to be defined unambiguously. Different choices of factorisation scheme lead to PDFs that satisfy modified DGLAP evolution equations, relative to the conventional $$\overli...

Measurements of the production of W$$^{\pm }$$ and Z$$^0$$ bosons in pp collisions at $$\sqrt{s} = 13$$ TeV

Abstract Measurements of the production of the W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons at midrapidity in pp collisions at $$\sqrt{s} = 13$$ s = 13 TeV with ALICE at the Large Hadron Collider (LHC) are presented. The W $$^{\pm }$$ ± and Z $$^0$$ 0 bosons are detected via their (di)e...

Machine Learning-Guided Strategy Selection and Condition Prediction for Photoredox Catalysis

Abstract Photoredox catalysis offers powerful opportunities for organic synthesis, yet its broader application remains limited by the difficulty of identifying viable synthetic routines and conditions. Here, we present an experimentally validated, machine-learning-assisted workfl...

Time-boundary scattering and topological resonant transmissions

Time boundaries (TBs), temporal analogues of spatial interfaces, offer a powerful handle to engineer quantum systems. However, unlike the well-developed stationary scattering theory at spatial interfaces, a unified framework for quantum scattering at TBs has been missing. Here we...

Ultra‐Dark on‐Chip Plasmonic Lattice Lasers for High‐Density Integrations

ABSTRACT Due to out‐of‐plane diffraction channels or scattering channels of defects, on‐chip micro‐lasers always suffer from severe emission of free‐space photons. This severely hampers not only the development of ultra‐high Q and ultra‐dark on‐chip micro‐lasers but also the high...

Vacuum ultraviolet dielectric function of cubic InGaN for the entire composition range

The cubic zincblende polymorph of InGaN is a very promising candidate for optical applications. Its absence of spontaneous polarization fields in the (001) orientation and lower fundamental band gap compared to its wurtzite counterpart makes it especially interesting for efficien...

Lattice matching dictates the growth mode and quality of deuterium crystallization in confined spherical shells

Cryogenic hydrogen isotope fuel layers with high structural integrity and atomic-scale smoothness are prerequisites for symmetric implosion and ignition in inertial confinement fusion (ICF). Using deuterium (D2) as model fuel, we perform large-scale molecular dynamics simulations...

Radon-induced backgrounds in the NEXT-100 experiment

A bstract The NEXT-100 detector at the LSC aims at the first competitive search for the 0 νββ decay using a high-pressure 136 Xe electroluminescent time projection chamber. The first low-background run of NEXT-100 at 3.95 bar has been devoted to the measurement of the radon-induc...

Generation of Squarelike Skyrmion Bubbles and Configuration Manipulation in Rare‐Earth DyFe 11 Mo Magnet

ABSTRACT Topological magnetic skyrmions with nanoscale particle‐like characteristics and high manipulability have been intensively studied as promising candidates for next‐generation high‐density information units. Besides the chiral skyrmions determined by Dzyaloshinskii‐Moriya...

Superconductivity in epitaxial PtSb(0001) thin films

Building on earlier reports of superconductivity in bulk PtSb, we present a systematic study of superconductivity in epitaxial PtSb(0001) thin films grown on SrF 2 ( 111 ) . Electrical transport measurements reveal a superconducting transition at T c = 1.72 K . The field-induced...