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Effects of the electrostatic environment on the Majorana nanowire devices

التفاصيل البيبلوغرافية
العنوان: Effects of the electrostatic environment on the Majorana nanowire devices
المؤلفون: A Vuik, D Eeltink, A R Akhmerov, M Wimmer
المصدر: New Journal of Physics, Vol 18, Iss 3, p 033013 (2016)
بيانات النشر: IOP Publishing, 2016.
سنة النشر: 2016
المجموعة: LCC:Science
LCC:Physics
مصطلحات موضوعية: Majorana zero modes, semiconducting nanowires, electrostatics, semiconductor–superconductor heterostructures, 73.20.At, 73.63.Nm, Science, Physics, QC1-999
الوصف: One of the promising platforms for creating Majorana bound states is a hybrid nanostructure consisting of a semiconducting nanowire covered by a superconductor. We analyze the previously disregarded role of electrostatic interaction in these devices. Our main result is that Coulomb interaction causes the chemical potential to respond to an applied magnetic field, while spin–orbit interaction and screening by the superconducting lead suppress this response. Consequently, the electrostatic environment influences two properties of Majorana devices: the shape of the topological phase boundary and the oscillations of the Majorana splitting energy. We demonstrate that both properties show a non-universal behavior, and depend on the details of the electrostatic environment. We show that when the wire only contains a single electron mode, the experimentally accessible inverse self-capacitance of this mode fully captures the interplay between electrostatics and Zeeman field. This offers a way to compare theoretical predictions with experiments.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1367-2630
Relation: https://doaj.org/toc/1367-2630
DOI: 10.1088/1367-2630/18/3/033013
URL الوصول: https://doaj.org/article/7670238936984ac58c8c93b0be48a3b0
رقم الأكسشن: edsdoj.7670238936984ac58c8c93b0be48a3b0
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:13672630
DOI:10.1088/1367-2630/18/3/033013