Št. zadetkov: 14
Magistrsko delo
Oznake:
fizika kondenzirane snovi;nematski tekoči kristali;feromagnetizem;Fréederickszov prehod;fluktuacije;križna diferenčna dinamična mikroskopija;
V magistrskem delu obravnavamo feromagnetne nematike. Gre za relativno nov material, ki ga pripravimo kot suspenzijo feromagnetnih nanoploščic v nematskem tekočem kristalu. Pokažemo, da se osnovni statični parametri (elastični konstanti K1 in K3, dvolomnost $\Delta n $ ter anizotropija dielektričnos ...
Leto:
2024
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Magistrsko delo
Oznake:
tekoči kristali;feroelektrični nematiki;elektro-optični odziv;polarizacijska mikroskopija;frekvenčno podvajanje;
Feroelektrični nematski tekoči kristali so od njihovega odkritja leta 2017 zaradi zanimivih optičnih in mehanoelektričnih lastnosti postali predmet številnih raziskav. Posebna lastnost feroelektrične nematske faze v primerjavi z navadno nematsko fazo je prisotnost makroskopske polarizacije. S sklopi ...
Leto:
2025
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
mehanoelektrika;polarizacija;
Direct viscous mechano-electric response is demonstrated for a room-temperature ferroelectric nematic liquid, which combines large spontaneous electric polarization with 3D fluidity. The mechano-electric transduction is observed in the frequency range 1 −200 Hz via a simple demonstrator device. The ...
Leto:
2024
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
polar nematic;ferroelectric splay nematic;surface effects;electro-optic behaviour;second harmonic generation;
The recent discovery of the ferroelectric nematic phase has opened the door to experimental investigation of one of the most searched liquid crystal phases in decades, with high expectations for future applications. However, at this moment, there are more questions than answers. In this work, we exa ...
Leto:
2021
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
kompleksne snovi;fazni prehodi;toplotni tokovi;
Pretransitional behaviour, with strong softening of the bend or splay elastic constants, is characteristic of two of the nematic to nematic phase transitions reported in the last decade. Such softening is strongly reflected in the pretransitional behaviour of the thermally excited director fluctuati ...
Leto:
2024
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
On the molecular origins of the ferroelectric splay nematic phase
Leto:
2021
Vir:
Institut Jožef Stefan (IJS)
Izvirni znanstveni članek
Oznake:
tekoči kristali;nelinearna optika;kvantna informacija;kvantna optika;liquid crystals;nonlinear optics;quantum information;quantum oprics;
Liquid crystals, with their ability to self-assemble, strong response to an electric field and integrability into complex systems, are key materials in light-beam manipulation. The recently discovered ferroelectric nematic liquid crystals also have considerable second-order optical nonlinearity, mak ...
Leto:
2024
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
liquid crystals;nonlinear optics;
The recently discovered ferroelectric nematic liquids incorporate to the functional combination of fluidity, processability and anisotropic optical properties of nematic liquids, an astonishing range of physical properties derived from the phase polarity. Among them, the remarkably large values of s ...
Leto:
2023
Vir:
Fakulteta za matematiko in fiziko (UL FMF)
Izvirni znanstveni članek
Oznake:
liquid crystals;multiferroics;ferroelectric materials;ferromagnetic materials;
Responsiveness to multiple stimuli and adaptivity are paramount for designing smart multifunctional materials. In soft, partially ordered systems, these features can often be achieved via self-assembly, allowing for the combination of diverse components in a complex nanostructured material. Here, an ...
Leto:
2025
Vir:
Institut Jožef Stefan (IJS)
Izvirni znanstveni članek
Oznake:
tekoči kristali;ferroelektrika;
RM734 is one of the first two liquid crystal compounds reported to exhibit the ferroelectric nematic phase. At the early stage of its characterisation, a direct nematic – to – ferroelectric nematic phase transition was reported for this compound. However, subsequent studies revealed the presence of ...
Leto:
2025
Vir:
Institut Jožef Stefan (IJS)