Interaction-induced zero-energy pinning and quantum dot formation in Majorana nanowires

Samuel D. Escribano,
Alfredo Levy Yeyati and
Elsa Prada

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Published 15 Aug 2018

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1. Figure 1: (a) Schematic representation of the setup analyzed in the present work. A nanowire of rectangular c...
  
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2. Figure 2: Majorana nanowire subject to interactions from the electrostatic environment (ignoring the influenc...
  
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3. Figure 3: Majorana wave functions in the non-interacting case: Energy levels (a) and the absolute value of th...
  
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4. Figure 4: Same as Figure 3 but for the interacting case (without leads). In the pinned regions the Majorana wave func...
  
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5. Figure 5: Majorana nanowire subject to interactions from the electrostatic environment (including the influen...
  
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6. Figure 6: Evolution with Zeeman field of the spectrum (a) and the absolute value of the Majorana charge Q_M (b...
  
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Beilstein J. Nanotechnol. 2018, 9, 2171–2180, doi:10.3762/bjnano.9.203

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Andreev spectrum and supercurrents in nanowire-based SNS junctions containing Majorana bound states

Jorge Cayao,
Annica M. Black-Schaffer,
Elsa Prada and
Ramón Aguado

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Published 03 May 2018

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1. Figure 1: A semiconducting nanowire with Rashba SOC is placed on a s-wave superconductor (S’) with pairing po...
  
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2. Figure 2: Low-energy spectrum of a superconducting nanowire as function of the Zeeman field B. At zero superc...
  
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3. Figure 3: Schematic of SNS junctions based on Rashba nanowires. Top: A nanowire with Rashba SOC of length L = ...
  
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4. Figure 4: Low-energy Andreev spectrum as a function of the superconducting phase difference in a short SNS j...
  
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5. Figure 5: Same as in Figure 4 for a long junction with L_N = 2000 nm and L_S = 2000 nm. Note that, unlike short junctio...
  
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6. Figure 6: Same as in Figure 4 for a short junction with L_N = 20 nm and L_S = 10000 nm. Note that in this case, the eme...
  
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7. Figure 7: Same as in Figure 4 for a long junction with L_N = 2000 nm and L_S = 10000 nm. The four lowest levels coexist...
  
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8. Figure 8: Low-energy Andreev spectrum as a function of the Zeeman field in a short SNS junction at = 0 (a,b)...
  
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9. Figure 9: Same as in Figure 8 for an intermediate junction with L_N = 400 nm.
  
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10. Figure 10: Same as in Figure 8 for a long junction with L_N = 2000 nm.
  
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11. Figure 11: Supercurrent as a function of the superconducting phase difference in a short SNS junction, I(), fo...
  
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12. Figure 12: Supercurrent as a function of the superconducting phase difference in a long SNS junction with L_N =...
  
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13. Figure 13: Supercurrent as a function of at B = 1.5B_c. Contributions to the supercurrent for (a,b) short and ...
  
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14. Figure 14: Finite temperature effect on the supercurrent, I(), in (a,b) a short and (c,d) a long junction. (a,...
  
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15. Figure 15: Effect of normal transmission through the coupling parameter τ on the supercurrent, I(), in (a,b) a...
  
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16. Figure 16: Effect of random on-site scalar disorder on the supercurrent I() in (a,b) a short and (c,d) a long ...
  
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