@article{MTMT:34715042, title = {Surface magnon spectra of nodal loop semimetals}, url = {https://m2.mtmt.hu/api/publication/34715042}, author = {Al-Assaf, Assem Mustafa Abd-Alrhman and Koltai, János and Oroszlány, László}, doi = {10.1103/PhysRevB.109.035161}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {109}, unique-id = {34715042}, issn = {2469-9950}, year = {2024}, eissn = {2469-9969}, orcid-numbers = {Koltai, János/0000-0003-2576-9740; Oroszlány, László/0000-0001-5682-6424} } @misc{MTMT:34719870, title = {Signature of pressure-induced topological phase transition in ZrTe5}, url = {https://m2.mtmt.hu/api/publication/34719870}, author = {Kovács-Krausz, Zoltán and Nagy, Dániel and Márffy, Albin Máté and Karpiak, Bogdan and Tajkov, Zoltán and Oroszlány, László and Koltai, János and Nemes Incze, Péter and Dash, Saroj P and Makk, Péter and Csonka, Szabolcs and Tóvári, Endre}, unique-id = {34719870}, abstract = {The layered van der Waals material ZrTe5 is known as a candidate topological insulator (TI), however its topological phase and the relation with other properties such as an apparent Dirac semimetallic state is still a subject of debate. We employ a semiclassical multicarrier transport (MCT) model to analyze the magnetotransport of ZrTe5 nanodevices at hydrostatic pressures up to 2 GPa. The temperature dependence of the MCT results between 10 and 300 K is assessed in the context of thermal activation, and we obtain the positions of conduction and valence band edges in the vicinity of the chemical potential. We find evidence of the closing and subsequent re-opening of the band gap with increasing pressure, which is consistent with a phase transition from weak to strong TI. This matches expectations from ab initio band structure calculations, as well as previous observations that CVT-grown ZrTe5 is in a weak TI phase in ambient conditions.}, year = {2023}, orcid-numbers = {Kovács-Krausz, Zoltán/0000-0001-5821-6195; Oroszlány, László/0000-0001-5682-6424; Koltai, János/0000-0003-2576-9740; Nemes Incze, Péter/0000-0002-1222-3020; Tóvári, Endre/0000-0002-0000-3805} } @article{MTMT:34470105, title = {Relativistic magnetic interactions from nonorthogonal basis sets}, url = {https://m2.mtmt.hu/api/publication/34470105}, author = {Martínez-Carracedo, G. and Oroszlány, László and García-Fuente, A. and Nyári, Bendegúz Tamás and Udvardi, László and Szunyogh, László and Ferrer, J.}, doi = {10.1103/PhysRevB.108.214418}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {108}, unique-id = {34470105}, issn = {2469-9950}, year = {2023}, eissn = {2469-9969}, orcid-numbers = {Oroszlány, László/0000-0001-5682-6424; Nyári, Bendegúz Tamás/0000-0001-5524-9995} } @article{MTMT:33673970, title = {Revealing the band structure of ZrTe5 using multicarrier transport}, url = {https://m2.mtmt.hu/api/publication/33673970}, author = {Kovács-Krausz, Zoltán and Tóvári, Endre and Nagy, Dániel and Márffy, Albin Máté and Karpiak, Bogdan and Tajkov, Zoltán and Oroszlány, László and Koltai, János and Nemes Incze, Péter and Dash, Saroj P. and Makk, Péter and Csonka, Szabolcs}, doi = {10.1103/PhysRevB.107.075152}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {107}, unique-id = {33673970}, issn = {2469-9950}, year = {2023}, eissn = {2469-9969}, orcid-numbers = {Kovács-Krausz, Zoltán/0000-0001-5821-6195; Tóvári, Endre/0000-0002-0000-3805; Karpiak, Bogdan/0000-0001-7462-8405; Oroszlány, László/0000-0001-5682-6424; Koltai, János/0000-0003-2576-9740; Nemes Incze, Péter/0000-0002-1222-3020; Dash, Saroj P./0000-0001-7931-4843} } @article{MTMT:33644685, title = {Electrically driven singlet-triplet transition in triangulene spin-1 chains}, url = {https://m2.mtmt.hu/api/publication/33644685}, author = {Martínez-Carracedo, Gabriel and Oroszlány, László and García-Fuente, Amador and Szunyogh, László and Ferrer, Jaime}, doi = {10.1103/PhysRevB.107.035432}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {107}, unique-id = {33644685}, issn = {2469-9950}, year = {2023}, eissn = {2469-9969}, orcid-numbers = {Oroszlány, László/0000-0001-5682-6424} } @CONFERENCE{MTMT:33126569, title = {Kvantum információ tárolására alkalmas topologikus szupravezető állapotok vizsgálata}, url = {https://m2.mtmt.hu/api/publication/33126569}, author = {Oroszlány, László}, booktitle = {Intézményi ÚNKP Konferencia 2022}, unique-id = {33126569}, year = {2022}, pages = {321}, orcid-numbers = {Oroszlány, László/0000-0001-5682-6424} } @article{MTMT:33090541, title = {Observation of competing, correlated ground states in the flat band of rhombohedral graphite}, url = {https://m2.mtmt.hu/api/publication/33090541}, author = {Hagymási, Imre and Mohd, Isa M.S. and Tajkov, Zoltán and Márity, K. and Oroszlány, László and Koltai, János and Al-Assaf, Assem Mustafa Abd-Alrhman and Kun, Péter and Kandrai, Konrád and Pálinkás, András and Vancsó, Péter and Tapasztó, Levente and Nemes Incze, Péter}, doi = {10.1126/sciadv.abo6879}, journal-iso = {SCI ADV}, journal = {SCIENCE ADVANCES}, volume = {8}, unique-id = {33090541}, issn = {2375-2548}, year = {2022}, eissn = {2375-2548}, orcid-numbers = {Oroszlány, László/0000-0001-5682-6424; Koltai, János/0000-0003-2576-9740; Vancsó, Péter/0000-0003-4333-9787; Tapasztó, Levente/0000-0002-9377-8465; Nemes Incze, Péter/0000-0002-1222-3020} } @article{MTMT:33068873, title = {Revealing the topological phase diagram of ZrTe5 using the complex strain fields of microbubbles}, url = {https://m2.mtmt.hu/api/publication/33068873}, author = {Tajkov, Zoltán and Nagy, Dániel and Kandrai, Konrád and Koltai, János and Oroszlány, László and Süle, Péter and Horváth, Zsolt Endre and Vancsó, Péter and Tapasztó, Levente and Nemes Incze, Péter}, doi = {10.1038/s41524-022-00854-z}, journal-iso = {NPJ COMPUT MATER}, journal = {NPJ COMPUTATIONAL MATERIALS}, volume = {8}, unique-id = {33068873}, issn = {2057-3960}, abstract = {Topological materials host robust properties, unaffected by microscopic perturbations, owing to the global topological properties of the bulk electron system. Materials in which the topological invariant can be changed by easily tuning external parameters are especially sought after. Zirconium pentatelluride (ZrTe5) is one of a few experimentally available materials that reside close to the boundary of a topological phase transition, allowing the switching of its invariant by mechanical strain. Here, we unambiguously identify a topological insulator-metal transition as a function of strain, by a combination of ab initio calculations and direct measurements of the local charge density. Our model quantitatively describes the response to complex strain patterns found in bubbles of few layer ZrTe5 without fitting parameters, reproducing the mechanical deformation-dependent closing of the band gap observed using scanning tunneling microscopy. We calculate the topological phase diagram of ZrTe5 and identify the phase at equilibrium, enabling the design of device architectures, which exploit the topological switching characteristics of the system.}, year = {2022}, eissn = {2057-3960}, orcid-numbers = {Koltai, János/0000-0003-2576-9740; Oroszlány, László/0000-0001-5682-6424; Horváth, Zsolt Endre/0000-0002-4632-0136; Vancsó, Péter/0000-0003-4333-9787; Tapasztó, Levente/0000-0002-9377-8465; Nemes Incze, Péter/0000-0002-1222-3020} } @misc{MTMT:32522179, title = {A Bell–CHSH-egyenlőtlenségek tesztelése}, url = {https://m2.mtmt.hu/api/publication/32522179}, author = {Koltai, János and B., Fecske and E., Kósa and Oroszlány, László and Tajkov, Zoltán}, unique-id = {32522179}, year = {2021}, orcid-numbers = {Koltai, János/0000-0003-2576-9740; Oroszlány, László/0000-0001-5682-6424} } @article{MTMT:32105841, title = {Time-dependent electric transport in nodal loop semimetals}, url = {https://m2.mtmt.hu/api/publication/32105841}, author = {Okvátovity, Zoltán and Oroszlány, László and Dóra, Balázs}, doi = {10.1103/PhysRevB.104.035130}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {104}, unique-id = {32105841}, issn = {2469-9950}, year = {2021}, eissn = {2469-9969}, orcid-numbers = {Oroszlány, László/0000-0001-5682-6424} }