{"date_updated":"2024-02-21T12:40:09Z","month":"07","article_processing_charge":"No","day":"02","type":"journal_article","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2008.02348"}],"abstract":[{"text":"A semiconducting nanowire fully wrapped by a superconducting shell has been proposed as a platform for obtaining Majorana modes at small magnetic fields. In this study, we demonstrate that the appearance of subgap states in such structures is actually governed by the junction region in tunneling spectroscopy measurements and not the full-shell nanowire itself. Short tunneling regions never show subgap states, whereas longer junctions always do. This can be understood in terms of quantum dots forming in the junction and hosting Andreev levels in the Yu-Shiba-Rusinov regime. The intricate magnetic field dependence of the Andreev levels, through both the Zeeman and Little-Parks effects, may result in robust zero-bias peaks—features that could be easily misinterpreted as originating from Majorana zero modes but are unrelated to topological superconductivity.","lang":"eng"}],"department":[{"_id":"GeKa"},{"_id":"Bio"}],"issue":"6550","date_published":"2021-07-02T00:00:00Z","publication_status":"published","scopus_import":"1","publisher":"American Association for the Advancement of Science","date_created":"2020-12-02T10:51:52Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","oa_version":"Submitted Version","oa":1,"status":"public","related_material":{"link":[{"url":"https://ist.ac.at/en/news/unfinding-a-split-electron/","description":"News on IST Homepage","relation":"press_release"}],"record":[{"relation":"dissertation_contains","id":"13286","status":"public"},{"status":"public","relation":"research_data","id":"9389"}]},"quality_controlled":"1","title":"Nontopological zero-bias peaks in full-shell nanowires induced by flux-tunable Andreev states","publication_identifier":{"eissn":["10959203"],"issn":["00368075"]},"external_id":{"arxiv":["2008.02348"],"isi":["000677843100034"]},"publication":"Science","author":[{"first_name":"Marco","last_name":"Valentini","full_name":"Valentini, Marco","id":"C0BB2FAC-D767-11E9-B658-BC13E6697425"},{"last_name":"Peñaranda","first_name":"Fernando","full_name":"Peñaranda, Fernando"},{"full_name":"Hofmann, Andrea C","id":"340F461A-F248-11E8-B48F-1D18A9856A87","first_name":"Andrea C","last_name":"Hofmann"},{"full_name":"Brauns, Matthias","id":"33F94E3C-F248-11E8-B48F-1D18A9856A87","first_name":"Matthias","last_name":"Brauns"},{"first_name":"Robert","last_name":"Hauschild","full_name":"Hauschild, Robert","id":"4E01D6B4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9843-3522"},{"full_name":"Krogstrup, Peter","last_name":"Krogstrup","first_name":"Peter"},{"last_name":"San-Jose","first_name":"Pablo","full_name":"San-Jose, Pablo"},{"first_name":"Elsa","last_name":"Prada","full_name":"Prada, Elsa"},{"full_name":"Aguado, Ramón","first_name":"Ramón","last_name":"Aguado"},{"last_name":"Katsaros","first_name":"Georgios","full_name":"Katsaros, Georgios","id":"38DB5788-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8342-202X"}],"doi":"10.1126/science.abf1513","article_number":"82-88","_id":"8910","language":[{"iso":"eng"}],"article_type":"original","citation":{"short":"M. Valentini, F. Peñaranda, A.C. Hofmann, M. Brauns, R. Hauschild, P. Krogstrup, P. San-Jose, E. Prada, R. Aguado, G. Katsaros, Science 373 (2021).","ama":"Valentini M, Peñaranda F, Hofmann AC, et al. Nontopological zero-bias peaks in full-shell nanowires induced by flux-tunable Andreev states. <i>Science</i>. 2021;373(6550). doi:<a href=\"https://doi.org/10.1126/science.abf1513\">10.1126/science.abf1513</a>","chicago":"Valentini, Marco, Fernando Peñaranda, Andrea C Hofmann, Matthias Brauns, Robert Hauschild, Peter Krogstrup, Pablo San-Jose, Elsa Prada, Ramón Aguado, and Georgios Katsaros. “Nontopological Zero-Bias Peaks in Full-Shell Nanowires Induced by Flux-Tunable Andreev States.” <i>Science</i>. American Association for the Advancement of Science, 2021. <a href=\"https://doi.org/10.1126/science.abf1513\">https://doi.org/10.1126/science.abf1513</a>.","apa":"Valentini, M., Peñaranda, F., Hofmann, A. C., Brauns, M., Hauschild, R., Krogstrup, P., … Katsaros, G. (2021). Nontopological zero-bias peaks in full-shell nanowires induced by flux-tunable Andreev states. <i>Science</i>. American Association for the Advancement of Science. <a href=\"https://doi.org/10.1126/science.abf1513\">https://doi.org/10.1126/science.abf1513</a>","ista":"Valentini M, Peñaranda F, Hofmann AC, Brauns M, Hauschild R, Krogstrup P, San-Jose P, Prada E, Aguado R, Katsaros G. 2021. Nontopological zero-bias peaks in full-shell nanowires induced by flux-tunable Andreev states. Science. 373(6550), 82–88.","ieee":"M. Valentini <i>et al.</i>, “Nontopological zero-bias peaks in full-shell nanowires induced by flux-tunable Andreev states,” <i>Science</i>, vol. 373, no. 6550. American Association for the Advancement of Science, 2021.","mla":"Valentini, Marco, et al. “Nontopological Zero-Bias Peaks in Full-Shell Nanowires Induced by Flux-Tunable Andreev States.” <i>Science</i>, vol. 373, no. 6550, 82–88, American Association for the Advancement of Science, 2021, doi:<a href=\"https://doi.org/10.1126/science.abf1513\">10.1126/science.abf1513</a>."},"ec_funded":1,"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"year":"2021","volume":373,"intvolume":"       373","project":[{"name":"Hybrid Semiconductor - Superconductor Quantum Devices","_id":"262116AA-B435-11E9-9278-68D0E5697425"},{"call_identifier":"H2020","_id":"26A151DA-B435-11E9-9278-68D0E5697425","name":"Majorana bound states in Ge/SiGe heterostructures","grant_number":"844511"}],"isi":1,"acknowledgement":"The authors thank A. Higginbotham, E. J. H. Lee and F. R. Martins for helpful discussions. This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication facility; the NOMIS Foundation and Microsoft; the European Union’s Horizon 2020 research and innovation program under the Marie SklodowskaCurie grant agreement No 844511; the FETOPEN Grant Agreement No. 828948; the European Research Commission through the grant agreement HEMs-DAM No 716655; the Spanish Ministry of Science and Innovation through Grants PGC2018-097018-B-I00, PCI2018-093026, FIS2016-80434-P (AEI/FEDER, EU), RYC2011-09345 (Ram´on y Cajal Programme), and the Mar´ıa de Maeztu Programme for Units of Excellence in R&D (CEX2018-000805-M); the CSIC Research Platform on Quantum Technologies PTI-001."}