Zobrazeno 1 - 10
of 1 466
pro vyhledávání: '"Frolov S"'
Autor:
Frolov, S. M., Mourik, V.
This work re-analyzes Gul et al. Nature Nanotechnology 2018 "Ballistic Majorana nanowire devices" using fuller data from the original experiments released in 2023 on Zenodo. The authors have prepared a correction to their article that appeared in Nat
Externí odkaz:
http://arxiv.org/abs/2407.18623
Autor:
Frolov, S. M., Zhang, P., Zhang, B., Jiang, Y., Byard, S., Mudi, S. R., Chen, J., Chen, A. -H., Hocevar, M., Gupta, M., Riggert, C., Pribiag, V. S.
Exploring the topology of electronic bands is a way to realize new states of matter with possible implications for information technology. Because bands cannot always be observed directly, a central question is how to tell that a topological regime h
Externí odkaz:
http://arxiv.org/abs/2309.09368
Autor:
Jiang, Y., Gupta, M., Riggert, C., Pendharkar, M., Dempsey, C., Lee, J. S., Harrington, S. D., Palmstrøm, C. J., Pribiag, V. S., Frolov, S. M.
Many recipes for realizing topological superconductivity rely on broken time-reversal symmetry, which is often attained by applying a substantial external magnetic field. Alternatively, using magnetic materials can offer advantages through low-field
Externí odkaz:
http://arxiv.org/abs/2305.19970
Autor:
Zhang, B., Li, Z., Wu, H., Pendharkar, M., Dempsey, C., Lee, J. S., Harrington, S. D., Palmstrom, C. J., Frolov, S. M.
Hybrid superconductor-semiconductor materials are fueling research in mesoscopic physics and quantum technology. Recently demonstrated smooth $\beta$-Sn superconductor shells, due to the increased induced gap, are expanding the available parameter sp
Externí odkaz:
http://arxiv.org/abs/2306.00146
Autor:
Chen, A. -H., Dempsey, C. P., Pendharkar, M., Sharma, A., Zhang, B., Tan, S., Bellon, L., Frolov, S. M., Palmstrom, C. J., Bellet-Amalric, E., Hocevar, M.
Metal deposition with cryogenic cooling is widely utilized in the condensed matter community for producing ultra-thin epitaxial superconducting layers on semiconductors. However, a drawback arises when these films return to room temperature, as they
Externí odkaz:
http://arxiv.org/abs/2301.12424
Autor:
Zhang, B., Li, Z., Aguilar, V., Zhang, P., Pendharkar, M., Dempsey, C., Lee, J. S., Harrington, S. D., Tan, S., Meyer, J. S., Houzet, M., Palmstrom, C. J., Frolov, S. M.
We study Josephson junctions based on InSb nanowires with Sn shells. We observe skewed critical current diffraction patterns: the maxima in forward and reverse current bias are at different magnetic flux, with a displacement of 20-40 mT. The skew is
Externí odkaz:
http://arxiv.org/abs/2212.00199
Autor:
Zhang, P., Mudi, S., Pendharkar, M., Lee, J. S., Dempsey, C. P., McFadden, A. P., Harrington, S. D., Dong, J. T., Wu, H., Chen, A. -H., Hocevar, M., Palmstrøm, C. J., Frolov, S. M.
Topological superconductivity is expected to spur Majorana zero modes -- exotic states that are also considered a quantum technology asset. Fractional Josephson effect is their manifestation in electronic transport measurements, often under microwave
Externí odkaz:
http://arxiv.org/abs/2211.08710
Autor:
Zhang, P., Zarassi, A., Jarjat, L., Van de Sande, V., Pendharkar, M., Lee, J. S., Dempsey, C. P., McFadden, A. P., Harrington, S. D., Dong, J. T., Wu, H., Chen, A. -H., Hocevar, M., Palmstrøm, C. J., Frolov, S. M.
Publikováno v:
SciPost Phys. 16, 030 (2024)
We investigate the current-phase relations of Al/InAs-quantum well planar Josephson junctions fabricated using nanowire shadowing technique. Based on several experiments, we conclude that the junctions exhibit an unusually large second-order Josephso
Externí odkaz:
http://arxiv.org/abs/2211.07119
Autor:
Zhang, P., Zarassi, A., Pendharkar, M., Lee, J. S., Jarjat, L., Van de Sande, V., Zhang, B., Mudi, S., Wu, H., Tan, S., Dempsey, C. P., McFadden, A. P., Harrington, S. D., Shojaei, B., Dong, J. T., Chen, A. -H., Hocevar, M., Palmstrøm, C. J., Frolov, S. M.
More and more materials, with a growing variety of properties, are built into electronic devices. This is motivated both by increased device performance and by the studies of materials themselves. An important type of device is a Josephson junction b
Externí odkaz:
http://arxiv.org/abs/2211.04130
Autor:
Gomanko, M., de Jong, E. J., Jiang, Y., Schellingerhout, S. G., Bakkers, E. P. A. M., Frolov, S. M.
Publikováno v:
SciPost Phys. 13, 089 (2022)
We investigate quantum dots in semiconductor PbTe nanowire devices. Due to the accessibility of ambipolar transport in PbTe, quantum dots can be occupied both with electrons and holes. Owing to a very large dielectric constant in PbTe of order 1000,
Externí odkaz:
http://arxiv.org/abs/2111.13242