Materials Literature
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We develop a self-energy-dressed Green's-function framework for terahertz-induced phonon angular momentum in polar crystals. The rectified angular-momentum response is formulated as a second-order response and, within a dressed-bubble approximation, is expressed in terms of retarded phonon propagators weighted by mode…
Hyperuniform systems possess the isotropic microstructure of liquids while suppressing large-scale density fluctuations with crystal-like precision, endowing them with exotic optical and transport properties. However, generating these states typically relies on top-down algorithmic optimizations that lack physical rea…
V magistrskem delu obravnavamo sistem ErTa$_7$O$_{19}$ (ETO), ki je sestavljen iz močno frustrirane 2D trikotne mreže magnetnih ionov Er$^{3+}$ (efektivni spini 1/2) s skoraj-Isingovimi sklopitvami, za katerega se predvideva, da bi lahko imel osnovno stanje z lastnostmi kvantne spinske tekočine. Na ETO so bili opravlj…
V diplomskem delu sem poskušal pripraviti kompozitni material iz grafena in lateksa naravne gume, ki bi imel izboljšane mehanske in električno prevodne lastnosti. Za pripravo disperzij grafena sem uporabil različne emulgatorje, nato pa z analizo velikosti delcev preveril učinkovitost emulgatorja in dispergiranja grafe…
Namen magistrske naloge je bil preučiti vpliv dolgotrajne prisotnosti konvencionalne polietilenske folije (folije PE) in biorazgradljive folije poli(butilen adipat-ko-tereftalatne) (folije PBAT) za zastiranje tal na rast, fiziološko stanje in biokemijske odzive sončnice (Helianthus annuus L.). V raziskavo so bila vklj…
V pričujočem delu raziskujemo termodinamske gonilne sile, ki pogojujejo stabilnost in podaljševanje prečne β strukture amiloidnih fibril. Nalogo formuliramo v okviru klasične obravnave kondenzirane faze kot sistema z N delci, pri čemer je razmerje med fizikalno naravo gradnikov sistema in njihovo poenostavljeno reprez…
We investigate the light-induced behaviour of different Cr-based antiferromagnetically coupled heterometallic systems. Time-resolved Electron Paramagnetic Resonance spectroscopy (trEPR) experiments using nanosecond-long laser excitation in the visible range allow observation of an intense, long-lived emissive trEPR si…
Aluminum–silicon alloy is widely used in engineering and manufacturing industries due to its low density, excellent corrosion resistance, and good castability. However, its hardness must be improved to meet the requirements of applications demanding superior mechanical properties. This study aims to investigate the ef…
The temperature dependences of magnetization and electrical resistivity as well as their magnetic field dependences have been examined in lightly-doped single-layer cuprate $\mathrm{La}_2\mathrm{CuO}_{4+δ}$ (LCO, hole-doping level $p \, (2δ) \cong 0.03$) single crystals, in comparison with those in the extremely low d…
For $g\ge 3$, let $N_g$ denote the non-orientable surface of genus $g$. In this article, we establish the existence of filling pairs on $N_g$ that intersect minimally by construction using the theory of fat graphs. The mapping class group $\mathrm{Mod}(N_g)$ acts on the set of all such filling pairs. We count $\mathrm…
Ce rapport analyse l'évolution observée des coûts d'offre et des coûts de construction finals de nouvelles centrales nucléaires de troisième génération en Europe et aux États-Unis, et présente des scénarios concernant les coûts de construction d'une éventuelle nouvelle centrale nucléaire en Suisse. Il expose en outre…
Controlling the polarity of anomalous Nernst thermopower is a promising strategy for enhancing the performances of thermoelectric applications. However, realizing such control at room temperature (RT) in topological ferromagnets with high magnetic anisotropy (Ku) remains challenging. Here, we report RT polarity contro…
As-built printed ferromagnets typically exhibit higher coercivity than optimized wrought materials, yet existing explanations rely on empirical fits or costly simulations. Herein, we provide a missing analytical theory that links print parameters directly to cooling rates, cellular spacing, dislocation density, and do…
Existing agentic approaches for recommendation system optimization remain fundamentally reactive: they adjust parameters in response to observed metric changes but lack the ability to proactively design controlled experiments, personalize strategies at the user-segment level, or accumulate reusable experimental method…
The pearl necklace number, $N_P$, of a knot is the smallest number of unit spheres required to construct a knot if each sphere is tangent to two neighbors and no sphere overlaps with another. It has been speculated that the pearl necklace number is equal to the minimum number of lattice sites required to embed a knot…
We prove that the Ginzburg-Landau equation correctly predicts the dynamics of quasilinear or fully nonlinear pattern-forming systems close to the first instability. We present an approximation theory in uniform local Sobolev spaces which is applied to a quasilinear Swift-Hohenberg model, to a quasilinear version of Bé…
Ce rapport analyse l'évolution observée des coûts d'offre et des coûts de construction finals de nouvelles centrales nucléaires de troisième génération en Europe et aux États-Unis, et présente des scénarios concernant les coûts de construction d'une éventuelle nouvelle centrale nucléaire en Suisse. Il expose en outre…
Atomistic spin dynamics (ASD) codes like VAMPIRE simulate femtosecond-laser-induced ultrafast demagnetization and all-optical switching (AOS) on a rigid lattice; the SPIN package of the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) instead propagates spins and lattice together, but until now could…
Large language models are increasingly used for quantitative work in the environmental sciences, yet existing evaluations score only final answers, leaving calculation process unobserved. Here we introduce AtmosCoder-Bench, an execution-grounded benchmark that makes the calculation process visible. Built through a tra…
Stacked intelligent metasurfaces (SIM) provide an efficient architecture for integrated sensing and communication (ISAC) with few radio-frequency (RF) chains. However, diagonal SIM provide only element-wise phase control, so balancing multiuser communication and sensing performance may require additional layers. In th…