@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:34431981, title = {Quantum Transport Properties of Nanosized Ta2O5 Resistive Switches: Variable Transmission Atomic Synapses for Neuromorphic Electronics}, url = {https://m2.mtmt.hu/api/publication/34431981}, author = {Török, Tímea Nóra and Makk, Péter and Balogh, Zoltán and Csontos, Miklós and Halbritter, András Ernő}, doi = {10.1021/acsanm.3c04769}, journal-iso = {ACS APPL NANO MATER}, journal = {ACS APPLIED NANO MATERIALS}, volume = {6}, unique-id = {34431981}, year = {2023}, eissn = {2574-0970}, pages = {21340-21349}, orcid-numbers = {Török, Tímea Nóra/0000-0001-5238-5895; Balogh, Zoltán/0000-0002-9580-361X; Csontos, Miklós/0000-0002-2766-6860; Halbritter, András Ernő/0000-0003-4837-9745} } @article{MTMT:34207534, title = {Stabilizing the Inverted Phase of a WSe 2 /BLG/WSe 2 Heterostructure via Hydrostatic Pressure}, url = {https://m2.mtmt.hu/api/publication/34207534}, author = {Kedves, Máté and Szentpéteri, Bálint and Márffy, Albin Máté and Tóvári, Endre and Papadopoulos, Nikos and Rout, Prasanna K. and Watanabe, Kenji and Taniguchi, Takashi and Goswami, Srijit and Csonka, Szabolcs and Makk, Péter}, doi = {10.1021/acs.nanolett.3c03029}, journal-iso = {NANO LETT}, journal = {NANO LETTERS}, volume = {23}, unique-id = {34207534}, issn = {1530-6984}, year = {2023}, eissn = {1530-6992}, pages = {9508-9514}, orcid-numbers = {Kedves, Máté/0000-0002-2057-4891; Tóvári, Endre/0000-0002-0000-3805; Papadopoulos, Nikos/0000-0002-9972-699X; Watanabe, Kenji/0000-0003-3701-8119; Taniguchi, Takashi/0000-0002-1467-3105} } @article{MTMT:34192924, title = {Effects of fabrication routes and material parameters on the control of superconducting currents by gate voltage}, url = {https://m2.mtmt.hu/api/publication/34192924}, author = {Ruf, L. and Elalaily, Tosson and Puglia, C. and Ivanov, Yu.P. and Joint, F. and Berke, Martin and Iorio, A. and Makk, Péter and De, Simoni G. and Gasparinetti, S. and Divitini, G. and Csonka, Szabolcs and Giazotto, F. and Scheer, E. and Di Bernardo, A.}, doi = {10.1063/5.0159750}, journal-iso = {APL MATER}, journal = {APL MATERIALS}, volume = {11}, unique-id = {34192924}, issn = {2166-532X}, year = {2023}, eissn = {2166-532X} } @article{MTMT:34058809, title = {Kétdimenziós szerkezetek: Az elektronoptikától a korrelációkig}, url = {https://m2.mtmt.hu/api/publication/34058809}, author = {Makk, Péter}, journal-iso = {FIZIKAI SZEMLE}, journal = {FIZIKAI SZEMLE}, volume = {73}, unique-id = {34058809}, issn = {0015-3257}, year = {2023}, pages = {203-207} } @article{MTMT:33733401, title = {Signatures of Gate-Driven Out-of-Equilibrium Superconductivity in Ta/InAs Nanowires}, url = {https://m2.mtmt.hu/api/publication/33733401}, author = {Elalaily, Tosson and Berke, Martin and Kedves, Máté and Fülöp, Gergő and Scherübl, Zoltán and Kanne, Thomas and Nygård, Jesper and Makk, Péter and Csonka, Szabolcs}, doi = {10.1021/acsnano.2c10877}, journal-iso = {ACS NANO}, journal = {ACS NANO}, volume = {17}, unique-id = {33733401}, issn = {1936-0851}, year = {2023}, eissn = {1936-086X}, pages = {5528-5535}, orcid-numbers = {Kedves, Máté/0000-0002-2057-4891} } @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:33293455, title = {Near-surface InAs two-dimensional electron gas on a GaAs substrate: Characterization and superconducting proximity effect}, url = {https://m2.mtmt.hu/api/publication/33293455}, author = {Sütő, Máté and Prok, Tamás and Makk, Péter and Kirti, Magdhi and Biasiol, Giorgio and Csonka, Szabolcs and Tóvári, Endre}, doi = {10.1103/PhysRevB.106.235404}, journal-iso = {PHYS REV B}, journal = {PHYSICAL REVIEW B}, volume = {106}, unique-id = {33293455}, issn = {2469-9950}, year = {2022}, eissn = {2469-9969}, orcid-numbers = {Sütő, Máté/0000-0003-2983-4490; Kirti, Magdhi/0000-0001-9490-1405; Biasiol, Giorgio/0000-0001-7974-5459; Tóvári, Endre/0000-0002-0000-3805} } @article{MTMT:33096845, title = {Parallel InAs nanowires for Cooper pair splitters with Coulomb repulsion}, url = {https://m2.mtmt.hu/api/publication/33096845}, author = {Kürtössy, Olivér and Scherübl, Zoltán and Fülöp, Gergő and Lukács, István Endre and Kanne, Thomas and Nygard, Jesper and Makk, Péter and Csonka, Szabolcs}, doi = {10.1038/s41535-022-00497-9}, journal-iso = {NPJ QUANTUM MATER}, journal = {NPJ QUANTUM MATERIALS}, volume = {7}, unique-id = {33096845}, abstract = {Hybrid nanostructures consisting of two parallel InAs nanowires connected by an epitaxially grown superconductor (SC) shell recently became available. Due to the defect-free SC-semiconductor interface and the two quasi-one-dimensional channels being close by, these platforms can be utilized to spatially separate entangled pairs of electrons by using quantum dots (QD) in the so-called Cooper pair splitting (CPS) process. The minimized distance between the QDs overcomes the limitations of single-wire-based geometries and can boost the splitting efficiency. Here we investigate CPS in such a device where strong inter-dot Coulomb repulsion is also present and studied thoroughly. We analyze theoretically the slight reduction of the CPS efficiency imposed by the Coulomb interaction and compare it to the experiments. Despite the competition between crossed Andreev reflection (CAR) and inter-wire capacitance, a significant CPS signal is observed indicating the dominance of the superconducting coupling. Our results demonstrate that the application of parallel InAs nanowires with epitaxial SC is a promising route for the realization of parafermionic states relying on enhanced CAR between the wires.}, keywords = {SUPERCONDUCTOR; Materials Science, Multidisciplinary; Physics, Applied; Quantum Science & Technology}, year = {2022}, eissn = {2397-4648}, orcid-numbers = {Lukács, István Endre/0000-0002-4985-4475} } @article{MTMT:32541140, title = {Gate-Controlled Supercurrent in Epitaxial Al/InAs Nanowires}, url = {https://m2.mtmt.hu/api/publication/32541140}, author = {Elalaily, Tosson and Kürtössy, Olivér and Scherübl, Zoltán and Berke, Martin and Fülöp, Gergő and Lukács, István Endre and Kanne, Thomas and Nygård, Jesper and Watanabe, Kenji and Taniguchi, Takashi and Makk, Péter and Csonka, Szabolcs}, doi = {10.1021/acs.nanolett.1c03493}, journal-iso = {NANO LETT}, journal = {NANO LETTERS}, volume = {21}, unique-id = {32541140}, issn = {1530-6984}, year = {2021}, eissn = {1530-6992}, pages = {9684-9690}, orcid-numbers = {Lukács, István Endre/0000-0002-4985-4475; Watanabe, Kenji/0000-0003-3701-8119; Taniguchi, Takashi/0000-0002-1467-3105; Makk, Péter/0000-0001-7637-4672} }