@article{MTMT:34818513, title = {Dynamical separation of charge and energy transport in one-dimensional Mott insulators}, url = {https://m2.mtmt.hu/api/publication/34818513}, author = {Møller, Frederik and Nagy, Botond and Kormos, Márton and Takács, Gábor}, doi = {10.1103/PhysRevB.109.L161112}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {109}, unique-id = {34818513}, issn = {2469-9950}, abstract = {One-dimensional Mott insulators can be described using the sine-Gordon model, an integrable quantum field theory that provides the low-energy effective description of several one-dimensional gapped condensed matter systems, including recent realizations with trapped ultracold atoms. Employing the theory of generalized hydrodynamics, we demonstrate that this model exhibits separation of the transport of topological charge vs energy. Analysis of the quasiparticle dynamics reveals that the mechanism behind the separation is the reflective scattering between topologically charged kinks/antikinks. The effect of these scattering events is most pronounced at strong coupling and low temperatures, where the distribution of quasiparticles is narrow compared to the reflective scattering amplitude. This effect results in a distinctively shaped “arrowhead” light cone for the topological charge.}, year = {2024}, eissn = {2469-9969}, orcid-numbers = {Møller, Frederik/0000-0002-5095-4393; Takács, Gábor/0000-0002-7075-3580} } @article{MTMT:34801218, title = {Incidence of the Brownian Relaxation Process on the Magnetic Properties of Ferrofluids}, url = {https://m2.mtmt.hu/api/publication/34801218}, author = {Vajtai, Lili and Nemes, Norbert Marcel and Morales, Maria del Puerto and Molnár, Kolos and Pinke, Balazs Gabor and Simon, Ferenc}, doi = {10.3390/nano14070634}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {14}, unique-id = {34801218}, abstract = {Ferrofluids containing magnetic nanoparticles represent a special class of magnetic materials due to the added freedom of particle tumbling in the fluids. We studied this process, known as Brownian relaxation, and its effect on the magnetic properties of ferrofluids with controlled magnetite nanoparticle sizes. For small nanoparticles (below 10 nm diameter), the Neel process is expected to dominate the magnetic response, whereas for larger particles, Brownian relaxation becomes important. Temperature- and magnetic-field-dependent magnetization studies, differential scanning calorimetry, and AC susceptibility measurements were carried out for 6 and 13.5 nm diameter magnetite nanoparticles suspended in water. We identify clear fingerprints of Brownian relaxation for the sample of large-diameter nanoparticles as both magnetic and thermal hysteresis develop at the water freezing temperature, whereas the samples of small-diameter nanoparticles remain hysteresis-free down to the magnetic blocking temperature. This is supported by the temperature-dependent AC susceptibility measurements: above 273 K, the data show a low-frequency Debye peak, which is characteristic of Brownian relaxation. This peak vanishes below 273 K.}, keywords = {NANOPARTICLES; Anisotropy; HYPERTHERMIA; Ferrofluid; Materials Science, Multidisciplinary; Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; MAGNETOMETRY; dipole interactions; Néel relaxation; Néel relaxation; Brownian relaxation}, year = {2024}, eissn = {2079-4991}, orcid-numbers = {Molnár, Kolos/0000-0002-9331-4652} } @article{MTMT:34777533, title = {Molecular Dynamics Study of Nanoribbon Formation by Encapsulating Cyclic Hydrocarbon Molecules inside Single-Walled Carbon Nanotube}, url = {https://m2.mtmt.hu/api/publication/34777533}, author = {Eskandari, Somayeh and Koltai, János and László, István and Kürti, Jenő}, doi = {10.3390/nano14070627}, journal-iso = {NANOMATERIALS-BASEL}, journal = {NANOMATERIALS}, volume = {14}, unique-id = {34777533}, abstract = {Carbon nanotubes filled with organic molecules can serve as chemical nanoreactors. Recent experimental results show that, by introducing cyclic hydrocarbon molecules inside carbon nanotubes, they can be transformed into nanoribbons or inner tubes, depending on the experimental conditions. In this paper, we present our results obtained as a continuation of our previous molecular dynamics simulation work. In our previous work, the initial geometry consisted of independent carbon atoms. Now, as an initial condition, we have placed different molecules inside a carbon nanotube (18,0): C5H5 (fragment of ferrocene), C5, C5+H2; C6H6 (benzene), C6, C6+H2; C20H12 (perylene); and C24H12 (coronene). The simulations were performed using the REBO-II potential of the LAMMPS software package, supplemented with a Lennard-Jones potential between the nanotube wall atoms and the inner atoms. The simulation proved difficult due to the slow dynamics of the H abstraction. However, with a slight modification of the parameterization, it was possible to model the formation of carbon nanoribbons inside the carbon nanotube.}, year = {2024}, eissn = {2079-4991}, orcid-numbers = {Koltai, János/0000-0003-2576-9740; Kürti, Jenő/0000-0001-9752-2769} } @article{MTMT:34764981, title = {Hormesis, the Individual and Combined Phytotoxicity of the Components of Glyphosate-Based Formulations on Algal Growth and Photosynthetic Activity}, url = {https://m2.mtmt.hu/api/publication/34764981}, author = {Klátyik, Szandra and Takács, Eszter and Barócsi, Attila and Lenk, Sándor and Kocsányi, László and Darvas, Béla and Székács, András}, doi = {10.3390/toxics12040257}, journal-iso = {TOXICS}, journal = {TOXICS}, volume = {12}, unique-id = {34764981}, abstract = {The occurrence of the market-leading glyphosate active ingredient in surface waters is a globally observed phenomenon. Although co-formulants in pesticide formulations were considered inactive components from the aspects of the required main biological effect of the pesticide, several studies have proven the high individual toxicity of formulating agents, as well as the enhanced combined toxicity of the active ingredients and other components. Since the majority of active ingredients are present in the form of chemical mixtures in our environment, the possible combined toxicity between active ingredients and co-formulants is particularly important. To assess the individual and combined phytotoxicity of the components, glyphosate was tested in the form of pure active ingredient (glyphosate isopropylammonium salt) and herbicide formulations (Roundup Classic and Medallon Premium) formulated with a mixture of polyethoxylated tallow amines (POEA) or alkyl polyglucosides (APG), respectively. The order of acute toxicity was as follows for Roundup Classic: glyphosate < herbicide formulation < POEA. However, the following order was demonstrated for Medallon Premium: herbicide formulation < glyphosate < APG. Increased photosynthetic activity was detected after the exposure to the formulation (1.5–5.8 mg glyphosate/L and 0.5–2.2 mg POEA/L) and its components individually (glyphosate: 13–27.2 mg/L, POEA: 0.6–4.8 mg/L), which indicates hormetic effects. However, decreased photosynthetic activity was detected at higher concentrations of POEA (19.2 mg/L) and Roundup Classic (11.6–50.6 mg glyphosate/L). Differences were demonstrated in the sensitivity of the selected algae species and, in addition to the individual and combined toxicity of the components presented in the glyphosate-based herbicides. Both of the observed inhibitory and stimulating effects can adversely affect the aquatic ecosystems and water quality of surface waters.}, year = {2024}, eissn = {2305-6304}, pages = {257}, orcid-numbers = {Klátyik, Szandra/0000-0001-9566-6179; Barócsi, Attila/0000-0002-8986-1346; Lenk, Sándor/0000-0002-7207-0329; Székács, András/0000-0001-5816-3775} } @article{MTMT:34749980, title = {Diamond surface functionalization via visible light-driven C-H activation for nanoscale quantum sensing}, url = {https://m2.mtmt.hu/api/publication/34749980}, author = {Rodgers, L.V.H. and Nguyen, S.T. and Cox, J.H. and Zervas, K. and Yuan, Z. and Sangtawesin, S. and Stacey, A. and Jaye, C. and Weiland, C. and Pershin, Anton and Gali, Ádám and Thomsen, L. and Meynell, S.A. and Hughes, L.B. and Jayich, A.C.B. and Gui, X. and Cava, R.J. and Knowles, R.R. and de, Leon N.P.}, doi = {10.1073/pnas.2316032121}, journal-iso = {P NATL ACAD SCI USA}, journal = {PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA}, volume = {121}, unique-id = {34749980}, issn = {0027-8424}, year = {2024}, eissn = {1091-6490}, orcid-numbers = {Gali, Ádám/0000-0002-3339-5470} } @article{MTMT:34749664, title = {Braiding-based quantum control of a Majorana qubit built from quantum dots}, url = {https://m2.mtmt.hu/api/publication/34749664}, author = {Boross, P. and Pályi, András}, doi = {10.1103/PhysRevB.109.125410}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {109}, unique-id = {34749664}, issn = {2469-9950}, year = {2024}, eissn = {2469-9969} } @article{MTMT:34749016, title = {Real-space nonlocal Gilbert damping from exchange torque correlation applied to bulk ferromagnets and their surfaces}, url = {https://m2.mtmt.hu/api/publication/34749016}, author = {Nagyfalusi, Balázs and Szunyogh, László and Palotás, Krisztián}, doi = {10.1103/PhysRevB.109.094417}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {109}, unique-id = {34749016}, issn = {2469-9950}, year = {2024}, eissn = {2469-9969}, orcid-numbers = {Palotás, Krisztián/0000-0002-1914-2901} } @article{MTMT:34749006, title = {Chemical potential of magnetic skyrmion quasiparticles in heavy-metal/iron bilayers}, url = {https://m2.mtmt.hu/api/publication/34749006}, author = {Nagyfalusi, Balázs and Udvardi, László and Szunyogh, László and Rózsa, Levente}, doi = {10.1103/PhysRevB.109.094418}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {109}, unique-id = {34749006}, issn = {2469-9950}, year = {2024}, eissn = {2469-9969}, orcid-numbers = {Rózsa, Levente/0000-0001-9456-5755} } @article{MTMT:34742349, title = {Az elektromágneses sugárzás távolhatása, avagy mire jó a Poynting-vektor; illetve tudunk-e a fénynél gyorsabban haladó jeleket előállítani?}, url = {https://m2.mtmt.hu/api/publication/34742349}, author = {Fürjes, Bálint and Dóra, Balázs and Simon, Ferenc}, journal-iso = {FIZIKAI SZEMLE}, journal = {FIZIKAI SZEMLE}, volume = {74}, unique-id = {34742349}, issn = {0015-3257}, year = {2024}, pages = {102-106} } @article{MTMT:34738091, title = {Relativisztikusan mozgó állóhullám}, url = {https://m2.mtmt.hu/api/publication/34738091}, author = {Sükösd, Csaba and Bokor, Nándor}, journal-iso = {FIZIKAI SZEMLE}, journal = {FIZIKAI SZEMLE}, volume = {74}, unique-id = {34738091}, issn = {0015-3257}, year = {2024}, pages = {66-70} }