Anomalous crossed Andreev reflection in a mesoscopic superconducting ring hosting Majorana fermions
Minchul Lee, Heunghwan Khim, Mahn-Soo Choi
DOI 10.1103/PhysRevB.89.035309 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
We investigate the Majorana physics and its effect on the electron transport in the nontopological superconductor (NS)–topological superconductor (TS) double junctions of a loop geometry. We find that, depending on the ratio between the lengths of two topologically different regions and the localization lengths of the Majorana fermions formed between them, two completely different transport mechanisms are working: perfect crossed Andreev reflection (CAR) for the short NS segment and perfect normal Andreev reflection for the short TS segment. The difference is explained in terms of the topologically distinct properties of subgap states in two regions, which have not been revealed so far. The exotic dependence of the CAR process on the magnetic flux threading the loop is uncovered and can be used to detect the Majorana fermions.
Similar papers
Universal transport signatures of Majorana fermions in superconductor-Luttinger liquid junctions
similarity 0.90Lukasz Fidkowski et al.
Source status unknown — claims are unverified
Tunneling transport through superconducting wires with Majorana bound states
similarity 0.90B. H. Wu & J. C. Cao
Source status unknown — claims are unverified
Conductance spectroscopy of nontopological-topological superconductor junctions
similarity 0.89F. Setiawan et al.
Source status unknown — claims are unverified
Signature of Majorana Fermions in Charge Transport in Semiconductor Nanowires
similarity 0.89Chunlei Qu et al. · 2011 · arXiv:1109.4108
Source status unknown — claims are unverified
Long-range crossed Andreev reflections in high-temperature superconductors
similarity 0.89William J. Herrera et al.
Source status unknown — claims are unverified
From Andreev to Majorana bound states in hybrid superconductor-semiconductor nanowires
similarity 0.89Elsa Prada et al. · 2019 · arXiv:1911.04512
Source status unknown — claims are unverified