Probing magnetic and triplet correlations in spin-split superconductors with magnetic impurities

Autor: C.-H. Huang, A. Skurativska, F. S. Bergeret, M. A. Cazalilla

Publikováno v: Physical Review Research, Vol 6, Iss 3, p 033022 (2024)

A superconductor (SC) in proximity to a ferromagnetic insulator (FMI) is predicted to exhibit mixed singlet and triplet correlations. The magnetic proximity effect of FMI spin splits the energy of Bogoliubov excitations and leads to a spin polarizati

Externí odkaz: https://doaj.org/article/a0c109a1762e4b188a0b7a3ff5d76df7

Magnetically-driven colossal supercurrent enhancement in InAs nanowire Josephson junctions

Autor: J. Tiira, E. Strambini, M. Amado, S. Roddaro, P. San-Jose, R. Aguado, F. S. Bergeret, D. Ercolani, L. Sorba, F. Giazotto

Publikováno v: Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)

Physical details of a Josephson junction may drastically modify the properties of supercurrent. Here, the authors observe a colossal enhancement of the critical supercurrent in a Josephson junction subject to a perpendicular magnetic field, indicatin

Externí odkaz: https://doaj.org/article/3c6335026b4347eba319ba664414ee8a

rf-SQUID measurements of anomalous Josephson effect

Autor: C. Guarcello, R. Citro, O. Durante, F. S. Bergeret, A. Iorio, C. Sanz-Fernández, E. Strambini, F. Giazotto, A. Braggio

Publikováno v: Physical Review Research, Vol 2, Iss 2, p 023165 (2020)

We discuss the response of an rf-SQUID formed by anomalous Josephson junctions embedded in a superconducting ring with a non-negligible inductance. We demonstrate that a properly sweeping in-plane magnetic field can cause both the total flux and the

Externí odkaz: https://doaj.org/article/839bf651ce0341d6bc608f1ce92589ab

Are Gadolinium-Enhanced MR Sequences Needed in Simultaneous 18F-FDG-PET/MRI for Tumor Delineation in Head and Neck Cancer?

Autor: E. Chambenois, Didier Dormont, Aurélie Kas, S. Bergeret, Nadya Pyatigorskaya, R. De Laroche, G. Herve, C. Bertolus, M. Amor-Sahli, Alain Giron, G. Bera

Publikováno v: American Journal of Neuroradiology
American Journal of Neuroradiology, 2020, 41 (10), pp.1888-1896. ⟨10.3174/ajnr.A6764⟩
American Journal of Neuroradiology, American Society of Neuroradiology, 2020, 41 (10), pp.1888-1896. ⟨10.3174/ajnr.A6764⟩

International audience; PET/MRI with 18F-FDG has demonstrated the advantages of simultaneous PET and MR imaging in head and neck cancer imaging, MRI allowing excellent soft-tissue contrast, while PET provides metabolic information. The aim of this st

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae8e57831bd02ad08adb71168061dee3
https://doi.org/10.3174/ajnr.a6764

Theory of the supercurrent diode effect in Rashba superconductors with arbitrary disorder

Autor: S. Ilić, F. S. Bergeret

We calculate the nonreciprocal critical current and quantify the supercurrent diode effect in two-dimensional Rashba superconductors with arbitrary disorder, using the quasiclassical Eilenberger equation. The nonreciprocity is caused by the helical s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::545c48575a010fdc026e0f31cfb7d0d1
http://hdl.handle.net/10261/284580