article published yes Martin Zemlicka author 2DCF8DE6-F248-11E8-B48F-1D18A9856A87 M. Kopčík author P. Szabó author T. Samuely author J. Kačmarčík author P. Neilinger author M. Grajcar author P. Samuely author JoFi department Superconductor insulator transition in transverse magnetic field is studied in the highly disordered MoC film with the product of the Fermi momentum and the mean free path kF*l close to unity. Surprisingly, the Zeeman paramagnetic effects dominate over orbital coupling on both sides of the transition. In superconducting state it is evidenced by a high upper critical magnetic field 𝐵𝑐2, by its square root dependence on temperature, as well as by the Zeeman splitting of the quasiparticle density of states (DOS) measured by scanning tunneling microscopy. At 𝐵𝑐2 a logarithmic anomaly in DOS is observed. This anomaly is further enhanced in increasing magnetic field, which is explained by the Zeeman splitting of the Altshuler-Aronov DOS driving the system into a more insulating or resistive state. Spin dependent Altshuler-Aronov correction is also needed to explain the transport behavior above 𝐵𝑐2. American Physical Society2020 eng 2469-9950 2469-9969 2011.04329 00059150990000310.1103/PhysRevB.102.180508 10218 Zemlicka, Martin, M. Kopčík, P. Szabó, T. Samuely, J. Kačmarčík, P. Neilinger, M. Grajcar, and P. Samuely. “Zeeman-Driven Superconductor-Insulator Transition in Strongly Disordered MoC Films: Scanning Tunneling Microscopy and Transport Studies in a Transverse Magnetic Field.” <i>Physical Review B</i>. American Physical Society, 2020. <a href="https://doi.org/10.1103/PhysRevB.102.180508">https://doi.org/10.1103/PhysRevB.102.180508</a>. Zemlicka, M., Kopčík, M., Szabó, P., Samuely, T., Kačmarčík, J., Neilinger, P., … Samuely, P. (2020). Zeeman-driven superconductor-insulator transition in strongly disordered MoC films: Scanning tunneling microscopy and transport studies in a transverse magnetic field. <i>Physical Review B</i>. American Physical Society. <a href="https://doi.org/10.1103/PhysRevB.102.180508">https://doi.org/10.1103/PhysRevB.102.180508</a> Zemlicka M, Kopčík M, Szabó P, Samuely T, Kačmarčík J, Neilinger P, Grajcar M, Samuely P. 2020. Zeeman-driven superconductor-insulator transition in strongly disordered MoC films: Scanning tunneling microscopy and transport studies in a transverse magnetic field. Physical Review B. 102(18), 180508. Zemlicka M, Kopčík M, Szabó P, et al. Zeeman-driven superconductor-insulator transition in strongly disordered MoC films: Scanning tunneling microscopy and transport studies in a transverse magnetic field. <i>Physical Review B</i>. 2020;102(18). doi:<a href="https://doi.org/10.1103/PhysRevB.102.180508">10.1103/PhysRevB.102.180508</a> M. Zemlicka <i>et al.</i>, “Zeeman-driven superconductor-insulator transition in strongly disordered MoC films: Scanning tunneling microscopy and transport studies in a transverse magnetic field,” <i>Physical Review B</i>, vol. 102, no. 18. American Physical Society, 2020. Zemlicka, Martin, et al. “Zeeman-Driven Superconductor-Insulator Transition in Strongly Disordered MoC Films: Scanning Tunneling Microscopy and Transport Studies in a Transverse Magnetic Field.” <i>Physical Review B</i>, vol. 102, no. 18, 180508, American Physical Society, 2020, doi:<a href="https://doi.org/10.1103/PhysRevB.102.180508">10.1103/PhysRevB.102.180508</a>. M. Zemlicka, M. Kopčík, P. Szabó, T. Samuely, J. Kačmarčík, P. Neilinger, M. Grajcar, P. Samuely, Physical Review B 102 (2020). 89442020-12-13T23:01:21Z2025-07-10T12:01:27Z