Academic Journal
Signature of a topological phase transition in long SN junctions in the spin-polarized density of states
| العنوان: | Signature of a topological phase transition in long SN junctions in the spin-polarized density of states |
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| المؤلفون: | Guigou, M., Sedlmayr, N., Aguiar-Hualde, J. M., Bena, C. |
| المساهمون: | Institut de Physique Théorique - UMR CNRS 3681 (IPHT), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Direction de Recherche Fondamentale (CEA) (DRF (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Michigan State University East Lansing, Michigan State University System, Laboratoire de Physique des Solides (LPS), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), European Project: 256965,EC:FP7:ERC,ERC-2010-StG_20091028,NANO-GRAPHENE(2011) |
| المصدر: | ISSN: 0295-5075. |
| بيانات النشر: | HAL CCSD European Physical Society / EDP Sciences / Società Italiana di Fisica / IOP Publishing |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect, Pacs number: 71.70.Ej, 73.20.-r, 74.45.+c, 74.50.+r, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall] |
| الوصف: | 7 pages, 8 figures ; International audience ; We investigate the spin texture of Andreev bound states and Majorana states in long SN junctions. We show that measuring the spin-polarized density of states (SPDOS) allows one to identify the topological transition. In particular, we find that its total component parallel to the wire is non-zero in the topological phase for the lowest-energy state, while vanishing in the trivial one. Also, the component parallel to the Zeeman field is symmetric between positive and negative energies in the topological phase and asymmetric in the trivial phase. Moreover the SPDOS exhibits a moderate accumulation close to the SN boundary which changes sign when crossing the topological transition. We propose that these signatures may allow one to unambiguously test the formation of a topological phase via spin-resolved transport and STM measurements. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | info:eu-repo/semantics/altIdentifier/arxiv/1407.1393; info:eu-repo/grantAgreement/EC/FP7/256965/EU/Understanding the Electronic Properties of Carbon Nanotubes and Graphene as Quantum Conductors/NANO-GRAPHENE; cea-01329513; https://cea.hal.science/cea-01329513; https://cea.hal.science/cea-01329513/document; https://cea.hal.science/cea-01329513/file/guig1.pdf; ARXIV: 1407.1393 |
| DOI: | 10.1209/0295-5075/115/47005 |
| الاتاحة: | https://cea.hal.science/cea-01329513 https://cea.hal.science/cea-01329513/document https://cea.hal.science/cea-01329513/file/guig1.pdf https://doi.org/10.1209/0295-5075/115/47005 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.CFA54FD7 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1209/0295-5075/115/47005 |
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