[{"publisher":"American Chemical Society","project":[{"grant_number":"335497","_id":"25517E86-B435-11E9-9278-68D0E5697425","name":"Towards Spin qubits and Majorana fermions in Germanium self assembled hut-wires","call_identifier":"FP7"}],"doi":"10.1021/acs.nanolett.7b02627","date_updated":"2025-07-10T11:57:05Z","date_published":"2017-08-10T00:00:00Z","language":[{"iso":"eng"}],"title":"Fast hole tunneling times in germanium hut wires probed by single-shot reflectometry","scopus_import":"1","ddc":["539"],"abstract":[{"text":"Heavy holes confined in quantum dots are predicted to be promising candidates for the realization of spin qubits with long coherence times. Here we focus on such heavy-hole states confined in germanium hut wires. By tuning the growth density of the latter we can realize a T-like structure between two neighboring wires. Such a structure allows the realization of a charge sensor, which is electrostatically and tunnel coupled to a quantum dot, with charge-transfer signals as high as 0.3 e. By integrating the T-like structure into a radiofrequency reflectometry setup, single-shot measurements allowing the extraction of hole tunneling times are performed. The extracted tunneling times of less than 10 μs are attributed to the small effective mass of Ge heavy-hole states and pave the way toward projective spin readout measurements.","lang":"eng"}],"publication":"Nano Letters","file":[{"checksum":"761371a0129b2aa442424b9561450ece","date_updated":"2020-07-14T12:48:13Z","file_size":2449546,"creator":"system","date_created":"2018-12-12T10:12:33Z","access_level":"open_access","relation":"main_file","file_name":"IST-2017-865-v1+1_acs.nanolett.7b02627.pdf","content_type":"application/pdf","file_id":"4951"}],"date_created":"2018-12-11T11:48:47Z","issue":"9","isi":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_status":"published","year":"2017","oa":1,"tmp":{"image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"month":"08","ec_funded":1,"status":"public","corr_author":"1","publication_identifier":{"issn":["1530-6984"]},"quality_controlled":"1","volume":17,"_id":"840","page":"5706 - 5710","related_material":{"record":[{"relation":"popular_science","id":"7977"},{"relation":"dissertation_contains","status":"public","id":"7996"},{"id":"69","status":"public","relation":"dissertation_contains"}]},"file_date_updated":"2020-07-14T12:48:13Z","has_accepted_license":"1","article_processing_charge":"No","publist_id":"6808","department":[{"_id":"GeKa"}],"day":"10","acknowledged_ssus":[{"_id":"M-Shop"}],"citation":{"chicago":"Vukušić, Lada, Josip Kukucka, Hannes Watzinger, and Georgios Katsaros. “Fast Hole Tunneling Times in Germanium Hut Wires Probed by Single-Shot Reflectometry.” <i>Nano Letters</i>. American Chemical Society, 2017. <a href=\"https://doi.org/10.1021/acs.nanolett.7b02627\">https://doi.org/10.1021/acs.nanolett.7b02627</a>.","apa":"Vukušić, L., Kukucka, J., Watzinger, H., &#38; Katsaros, G. (2017). Fast hole tunneling times in germanium hut wires probed by single-shot reflectometry. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.nanolett.7b02627\">https://doi.org/10.1021/acs.nanolett.7b02627</a>","ista":"Vukušić L, Kukucka J, Watzinger H, Katsaros G. 2017. Fast hole tunneling times in germanium hut wires probed by single-shot reflectometry. Nano Letters. 17(9), 5706–5710.","short":"L. Vukušić, J. Kukucka, H. Watzinger, G. Katsaros, Nano Letters 17 (2017) 5706–5710.","ieee":"L. Vukušić, J. Kukucka, H. Watzinger, and G. Katsaros, “Fast hole tunneling times in germanium hut wires probed by single-shot reflectometry,” <i>Nano Letters</i>, vol. 17, no. 9. American Chemical Society, pp. 5706–5710, 2017.","ama":"Vukušić L, Kukucka J, Watzinger H, Katsaros G. Fast hole tunneling times in germanium hut wires probed by single-shot reflectometry. <i>Nano Letters</i>. 2017;17(9):5706-5710. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.7b02627\">10.1021/acs.nanolett.7b02627</a>","mla":"Vukušić, Lada, et al. “Fast Hole Tunneling Times in Germanium Hut Wires Probed by Single-Shot Reflectometry.” <i>Nano Letters</i>, vol. 17, no. 9, American Chemical Society, 2017, pp. 5706–10, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.7b02627\">10.1021/acs.nanolett.7b02627</a>."},"author":[{"orcid":"0000-0003-2424-8636","first_name":"Lada","full_name":"Vukusic, Lada","id":"31E9F056-F248-11E8-B48F-1D18A9856A87","last_name":"Vukusic"},{"last_name":"Kukucka","id":"3F5D8856-F248-11E8-B48F-1D18A9856A87","first_name":"Josip","full_name":"Kukucka, Josip"},{"last_name":"Watzinger","id":"35DF8E50-F248-11E8-B48F-1D18A9856A87","first_name":"Hannes","full_name":"Watzinger, Hannes"},{"last_name":"Katsaros","orcid":"0000-0001-8342-202X","full_name":"Katsaros, Georgios","first_name":"Georgios","id":"38DB5788-F248-11E8-B48F-1D18A9856A87"}],"intvolume":"        17","oa_version":"Published Version","external_id":{"isi":["000411043500078"]},"type":"journal_article","pubrep_id":"865"}]