{"volume":16,"project":[{"name":"Protected states of quantum matter","_id":"eb9b30ac-77a9-11ec-83b8-871f581d53d2"},{"name":"Probing topology in circuits and quantum materials","_id":"34a7f947-11ca-11ed-8bc3-c5dc2bbaae25","grant_number":"F8609"}],"article_type":"original","external_id":{"arxiv":["2311.09347"]},"has_accepted_license":"1","quality_controlled":"1","day":"01","status":"public","abstract":[{"lang":"eng","text":"Two-dimensional semiconductor-superconductor heterostructures form the foundation of numerous nanoscale physical systems. However, measuring the properties of such heterostructures, and characterizing the semiconductor in-situ is challenging. A recent experimental study by [Phys. Rev. Lett. 128, 107701 (2022)] was able to probe the semiconductor within the heterostructure using microwave measurements of the superfluid density. This work revealed a rapid depletion of superfluid density in semiconductor, caused by the in-plane magnetic field which in presence of spin-orbit coupling creates so-called Bogoliubov Fermi surfaces. The experimental work used a simplified theoretical model that neglected the presence of non-magnetic disorder in the semiconductor, hence describing the data only qualitatively. Motivated by experiments, we introduce a theoretical model describing a disordered semiconductor with strong spin-orbit coupling that is proximitized by a superconductor. Our model provides specific predictions for the density of states and superfluid density. Presence of disorder leads to the emergence of a gapless superconducting phase, that may be viewed as a manifestation of Bogoliubov Fermi surface. When applied to real experimental data, our model showcases excellent quantitative agreement, enabling the extraction of material parameters such as mean free path and mobility, and estimating g-tensor after taking into account the orbital contribution of magnetic field. Our model can be used to probe in-situ parameters of other superconductor-semiconductor heterostructures and can be further extended to give access to transport properties."}],"intvolume":" 16","date_updated":"2024-05-07T13:01:26Z","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png"},"acknowledgement":"We acknowledge useful discussions with M. Geier, A. Levchenko, B. Ramshaw, T. Scaffidi, and\r\nJ. Shabani. This research was funded by the Austrian Science Fund (FWF) F 86.\r\nFor the purpose of open access, authors have applied a CC BY public copyright licence to any\r\nAuthor Accepted Manuscript version arising from this submission. MS acknowledges hospitality of KITP supported in part by the National Science Foundation under Grants No. NSF\r\nPHY-1748958 and PHY-2309135. APH acknowledges the support of the NOMIS foundation.","publication_status":"published","publisher":"SciPost Foundation","oa":1,"type":"journal_article","citation":{"short":"S. Babkin, A.P. Higginbotham, M. Serbyn, SciPost Physics 16 (2024).","apa":"Babkin, S., Higginbotham, A. P., & Serbyn, M. (2024). Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field. SciPost Physics. SciPost Foundation. https://doi.org/10.21468/scipostphys.16.5.115","ista":"Babkin S, Higginbotham AP, Serbyn M. 2024. Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field. SciPost Physics. 16(5), 115.","ama":"Babkin S, Higginbotham AP, Serbyn M. Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field. SciPost Physics. 2024;16(5). doi:10.21468/scipostphys.16.5.115","mla":"Babkin, Serafim, et al. “Proximity-Induced Gapless Superconductivity in Two-Dimensional Rashba Semiconductor in Magnetic Field.” SciPost Physics, vol. 16, no. 5, 115, SciPost Foundation, 2024, doi:10.21468/scipostphys.16.5.115.","chicago":"Babkin, Serafim, Andrew P Higginbotham, and Maksym Serbyn. “Proximity-Induced Gapless Superconductivity in Two-Dimensional Rashba Semiconductor in Magnetic Field.” SciPost Physics. SciPost Foundation, 2024. https://doi.org/10.21468/scipostphys.16.5.115.","ieee":"S. Babkin, A. P. Higginbotham, and M. Serbyn, “Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field,” SciPost Physics, vol. 16, no. 5. SciPost Foundation, 2024."},"oa_version":"Published Version","title":"Proximity-induced gapless superconductivity in two-dimensional Rashba semiconductor in magnetic field","month":"05","issue":"5","_id":"15367","publication_identifier":{"issn":["2542-4653"]},"doi":"10.21468/scipostphys.16.5.115","article_processing_charge":"Yes","date_published":"2024-05-01T00:00:00Z","ddc":["530"],"file":[{"file_id":"15369","success":1,"access_level":"open_access","checksum":"f999204856417dcf5a736ac8df432b96","creator":"dernst","date_updated":"2024-05-07T12:58:47Z","content_type":"application/pdf","file_size":2733685,"file_name":"2024_SciPostPhys_Babkin.pdf","date_created":"2024-05-07T12:58:47Z","relation":"main_file"}],"year":"2024","date_created":"2024-05-06T09:02:18Z","publication":"SciPost Physics","article_number":"115","department":[{"_id":"MaSe"},{"_id":"AnHi"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"last_name":"Babkin","id":"41e64307-6672-11ee-b9ad-cc7a0075a479","full_name":"Babkin, Serafim","orcid":"0009-0003-7382-8036","first_name":"Serafim"},{"full_name":"Higginbotham, Andrew P","orcid":"0000-0003-2607-2363","first_name":"Andrew P","last_name":"Higginbotham","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87"},{"id":"47809E7E-F248-11E8-B48F-1D18A9856A87","last_name":"Serbyn","full_name":"Serbyn, Maksym","first_name":"Maksym","orcid":"0000-0002-2399-5827"}],"file_date_updated":"2024-05-07T12:58:47Z","language":[{"iso":"eng"}]}