A5004818479- Magneto-Optical Properties and Applications
- Theoretical and Computational Physics
- DNA and Nucleic Acid Chemistry
- Magnetic properties of thin films
- Photonic Crystals and Applications
- Advanced biosensing and bioanalysis techniques
- Advanced Condensed Matter Physics
- Space Satellite Systems and Control
- Molecular Junctions and Nanostructures
- Electronic and Structural Properties of Oxides
- Inertial Sensor and Navigation
- Radiation Effects in Electronics
- Protein Structure and Dynamics
- Ion-surface interactions and analysis
- RNA and protein synthesis mechanisms
- Complex Systems and Time Series Analysis
- Plasma Diagnostics and Applications
- Transition Metal Oxide Nanomaterials
- Opinion Dynamics and Social Influence
- Quantum many-body systems
- Metamaterials and Metasurfaces Applications
- Advanced Fiber Optic Sensors
- Astro and Planetary Science
- Hemoglobin structure and function
- Liquid Crystal Research Advancements
Uppsala University
2019-2025
National and Kapodistrian University of Athens
2018
We investigate the design of magnetic ordering in one-dimensional mesoscopic Ising chains by modulating long-range interactions. These interactions are affected geometrical modifications to chain, which adjust energy hierarchy and resulting ground states. Consequently, can be tuned between antiferromagnetic dimer phases. phases experimentally observed fabricated using both conventional electron-beam lithography ion implantation techniques, demonstrating feasibility controlling properties at...
We study experimentally the impact of additive fabrication method on magnetic properties Fe$^+$-implanted Pd square artificial spin ice lattices. Our findings show that these lattices undergo collapse at higher temperatures than their continuous film counterparts. This behavior is attributed to process, which induces an inhomogeneous Fe concentration within lattice building blocks. Moreover, implantation process creates a depth profile, enabling temperature-dependent tunability thickness....
We study the energy structure and transfer of an extra electron or hole along periodic polymers made $N$ monomers, with a repetition unit $P$ using tight-binding wire model, where site is monomer (e.g., in DNA, base pair), for even, deal two categories such polymers: same (GC\dots{}, GGCC\dots{}, etc.) different monomers (GA\dots{}, GGAA\dots{}, etc.). calculate highest occupied molecular orbital (HOMO) lowest unoccupied (LUMO) eigenspectra, density states, HOMO-LUMO gap find some limiting...
Postsynthetic, position‐selective addition of properties to materials constitutes a paradigm shifting step in engineering. The approach enables creation material systems inaccessible by equilibrium and near‐equilibrium synthesis can be applied novel practical applications as well fundamental physics studies over range length energy scales. Ion implantation is versatile, scalable, industry‐compatible tool, enabling the next this development. Herein, ion used design functionalize mesoscopic...
We present a method for the additive fabrication of planar magnetic nanoarrays with minimal surface roughness. Synthesis is accomplished by combining electron-beam lithography, used to generate nanometric patterned masks, ion implantation in thin films. By implanting 56Fe+ ions, we are able introduce functionality controlled manner into continuous Pd films, achieving 3D spatial resolution down few tens nanometers. Our results demonstrate application this technique fabricating square...
In this work we present a temperature and angular dependent study of the structural magnetic properties in highly crystalline V2O3/Ni/Zr heterostructure films. Our investigation focuses on coupling between ferromagnetic Ni layer V2O3layer which undergoes an antiferromagnetic/paramagnetic phase transition coupled to material at around 150 K. Structural investigations using x-ray diffraction reveal films quality has previously not been reported literature. The layers display absence in-plane...
We present a method for the additive fabrication of planar magnetic nanoarrays with minimal surface roughness. Synthesis is accomplished by combining electron-beam lithography, used to generate nanometric patterned masks, ion implantation in thin films. By implanting $^{56}$Fe$^{+}$ ions, we are able introduce functionality controlled manner into continuous Pd films, achieving 3D spatial resolution down few tens nanometers. Our results demonstrate application this technique fabricating...
We investigate the design of magnetic ordering in one-dimensional mesoscopic Ising chains by modulating long-range interactions. These interactions are affected geometrical modifications to chain, which adjust energy hierarchy and resulting ground states. Consequently, can be tuned between antiferromagnetic dimer phases. phases experimentally observed fabricated using both conventional electron-beam lithography ion implantation techniques, demonstrating feasibility controlling properties at...
We study the steering of visible light using a combination magneto-optical effects and reconfigurability magnetic domains in yttrium-iron garnet films. The spontaneously formed stripe are used as field-controlled optical grating, allowing for active spatiotemporal control light. discuss basic ideas behind approach provide quantitative description field dependence obtained patterns. Finally, we calculate experimentally verify efficiency our grating.
We study the frequency content of an extra carrier oscillation along B-DNA aperiodic and periodic polymers oligomers made N monomers. In our work, we employ two variants Tight-Binding (TB) approach: a wire model extended ladder including diagonal hoppings, as well Real-Time Time-Dependent Density Functional Theory (RT-TDDFT). model, site is monomer, i.e., base pair, while, in base. Initially, focus on Fourier Spectra probabilities to find at each having placed it time zero specific monomer....