2025/05/31 by E. S. Tikhonov, V. S. Khrapai
Physics and Astronomy · #Quantum and electron transport phenomena #Surface and Thin Film Phenomena #Topological Materials and Phenomena #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1038/s41567-026-03377-2
published as Nature Physics (2026) · published as Matters Arising
openalex publication_date 2026/07/28 · arxiv created 2026/07/29 · openalex created_date 2026/07/29 · arxiv updated 2026/07/30 · openalex updated_date 2026/07/30
We argue that the interpretation of the experiment [Nature Physics 21, 708-715 (2025)] is misleading in two respects. First, the bias voltages impact the non-local differential conductance randomly, rather than systematically, and the bias symmetry of the non-local conductance in Fig. 3 can be explained by a fine tuned self-gating effect. Second, the full knowledge of the conductance matrix is insufficient to conclude on the relative values of the crossed-Andreev and elastic cotunneling probabilities, in particular on the dominance of one of them.