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| Pulzná laserová depozícia 2D polovodičov na nitridy pre pokročilú elektroniku | |
| PULSEd laser deposition of 2D semiconductors on nitrides for advanced electronics | |
| Program: | Bilateral – other |
| Project leader: | RNDr. Španková Marianna, PhD |
| Duration: | 1.1.2021 – 31.12.2022 |
National
| Modifikácia vlastností supravodivých, feromagnetických oxidových vrstiev a štruktúr pre modernú elektroniku | |
| Modification of properties of superconducting, ferromagnetic, oxide films and structures for advanced electronics | |
| Program: | VEGA |
| Project leader: | RNDr. Španková Marianna, PhD |
| Annotation: | We prepare and study oxide – ferromagnetic and dielectric perovskite thin films and micro- and nano structures as well as selected current superconducting films. YBa2Cu3Ox (YBCO) and La0.67Sr0.33MnO3 (LSMO) microstrips will be exposed different types of organic molecules to study their influence on the superconducting and ferromagnetic film properties. Following the results of the previous VEGA project, we will continue to study the superconductor S/ferromagnet F and S/F/S structures focusing on a creation of magnetic inhomogeneities with the aim to increase the triplet component of superconductivity and resolve the phenomenom of S/F thin films interaction (proximity effect). As part of the project, we will investigate the possibility of superconducting behavior of a two-dimensional MoS2 system deposited by pulsed laser deposition. |
| Duration: | 1.1.2022 – 31.12.2025 |
| Príprava, charakterizácia a dopovanie ultratenkých vrstiev dichalkogenidov prechodných kovov | |
| Fabrication, characterization, and doping of ultra-thin layers of transition metal dichalcogenides | |
| Program: | VEGA |
| Project leader: | Mgr. Sojková Michaela, PhD. |
| Annotation: | Thanks to the unusual physical properties, 2D materials have been intensively studied for several years. Aninteresting group of this class of materials is transition metal dichalcogenides TMD. They have a hexagonalstructure with the individual layers bonded to each other only by weak Van der Waals bonds. This causessignificantly anisotropic properties and has a significant effect on their electronic structure. Some of them showphysically interesting correlated states (superconductivity, charge density waves). The primary goal of this projectis to prepare and study the properties of thin layers of 2 different TMD – MoS2 and PtSe2, and to study theinfluence of doping with Li and Na cations on the electrical and structural properties of these layers. Thesecondary goal is to optimize growth and doping conditions to improve the parameters of thin films, such aselectrical conductivity and charge carrier mobility which will enable the preparation of functional electroniccomponents – transistors. |
| Duration: | 1.1.2021 – 31.12.2024 |
| Perovskitovské tenké vrstvy a štruktúry vhodné pre modern elektroniku a senzoriku | |
| Perovskite thin films and structures for modern electronics and sensorics | |
| Program: | VEGA |
| Project leader: | RNDr. Španková Marianna, PhD |
| Annotation: | We prepare different types of perovskite films -ferromagnetic, superconducting, dielectric- (thickness up to 100nm) and micro- and nano structures. YBa2Cu3Ox superconducting microstrips will be irradiated by electrons (30keV) with the aim to create channels for easy vortex motion. We also focus on detailed study of Si/dielectric layerinterface using unconventional materials (SrO, TiN) with the aim to enable epitaxial growth of buffer layersnecessary for realization of uncooled microbolometers on the base of La0.67Sr0.33MnO3 films working and atfrequencies in THz range. Beside the Bi4Ti3O12 studied so far different types of other buffer layers will be testedin order to develop new types of bolometers. We continue in study of perovskite superconductor S/ferromagnet Fand S/F/S structures with the aim to resolve the phenomenom of S/F thin films interaction (proximity effect). Theimplementation of pi-type Josephson junction in digital and quantum circuits may solve some problems of superconducting qubits. |
| Duration: | 1.1.2018 – 31.12.2021 |