TMD2DCOR – Metalické 2D dichalkogenidy prechodných kovov: príprava, štúdium vlastností a korelované stavy
Fabrication, physics and correlated states in metallic 2D transition metal dichalcogenides
Program: SRDA
Project leader: Dr. rer. nat. Hulman Martin
Annotation: The discovery of graphene in 2004 has brought a massive interest of scientists active in condensed-matter physicson research of 2D materials. Even though these materials have a long history starting already in the twenties of the20th century, the past years have seen an intensive renascence of interest in 2D materials. Ultra-thin samples ofmany 2D materials have been successfully prepared with electronic properties that may exhibit correlatedelectronic phenomena such as charge density waves and superconductivity. One of the well-studied families of the2D materials are transition metal dichalcogenides (TMDs). TMDs consist of hexagonal layers of metal atomssandwiched between two layers of chalcogen atoms with a MX2 stoichiometry.In this project, we focus on those materials from the TMD family that exhibit strongly correlated electronic states:NbSe2, TiSe2, TaS2, TaSe2 and PtSe2. The goal of the project is to prepare ultrathin (≤ 10 nm) layers and bulksamples and characterise them thoroughly in terms of the thickness, crystallinity, homogeneity, optical andelectronic properties. A special attention will be paid to charge density wave states and superconductivity in thesematerials and how they evolve with the sample thickness, doping, external electric and magnetic fields and detailsof the growth process.The scientific program also aims at preparing heterostructures built up of these materials as well as hybrid systemscombining TMDs with other materials. This research also includes a detailed characterisation of heterostructures toprovide a feedback to optimise the growth process.
Duration: 1.7.2020 – 30.6.2023
Robustné spinové vlny pre budúce magnonické aplikácie
Robust spin waves for future magnonic applications
Program: SRDA
Project leader: Dr. Mruczkiewicz Michal
Annotation: In this project we will focus on the theoretical and experimental investigation of spin wave dynamics at nanoscale. Spin wave is considered as candidate for an information carrier in ultrafast and energy efficient information processing devices. It is due the unique properties of spin waves, namely low heat dissipation, possible manipulation at nanoscale or reconfigurability. We are going to investigate specific spin wave systems, that can host robust, unidirectional and reprogrammable spin waves. Therefore, the results of this project will contribute to the field of modern magnetism, magnonics.
Duration: 1.7.2020 – 30.6.2023
Rast a charakterizácia materiálu zo skupiny dichalkogenidov prechodových kovov: diselenid titánu
Growth and characterization of a material from the group of transition metal dichalcogenides: titanium diselenide
Program: VEGA
Project leader: Ing. Precner Marián PhD.
Duration: 1.1.2019 – 31.12.2021
NanoSky – Skyrmióny vo feromagnetických nanoobjektoch
Skyrmions in ferromagnetic nanoobjects
Program: SRDA
Project leader: RNDr. Cambel Vladimír DrSc.
Annotation: In this project we will focus on the numerical and experimental study of skyrmions in ferromagnetic nanoobjects. The skyrmions were found in structures with multilayer configuration and the confinement due to geometry can increase stability of the skyrmion significantly. Thus nanoobject structures can lead to room temperature stable, reconfigurable magnetic elements. Still a control and experimental investigation of such structures is chalenge. We will concentrate on the facilitation of generation and develop methods for identification and characterization of the skyrmion states. The study will pave the way towards the implementation of skyrmion in magnetic devices based on the patterned nano-objects (single or arrays).
Duration: 1.7.2017 – 31.12.2020