| 89 | A single cardiomyocyte, micropatterned on a soft silicon surface. The images demonstrate two views of fluorescently labeled extracellular vesicle uptake in the cardiomyocyte. Publications 2023 and 2024 • Moran Yadid, Mario Hagel, Megan Beldjilali Labro, Baptiste Le Roi, Carina Flaxer, Eli Flaxer, A Ronny Barnea, Shai Tejman‐Yarden, Eric Silberman, Xin Li, Rossana Rauti, Yael Leichtmann‐ Bardoogo, Hongyan Yuan, Ben M Maoz. “A Platform for Assessing Cellular Contractile Function Based on Magnetic Manipulation of Magnetoresponsive Hydrogel Films.” Advanced Science, 2023. • Luise Schlotterose, Megane BeldjilaliLabro, Mario Hagel, Moran Yadid, Carina Flaxer, Eli Flaxer, A Ronny Barnea, Kirsten Hattermann, Esther Shohami, Yael Leichtmann-Bardoogo, Ben M Maoz. “Inducing Mechanical Stimuli to Tissues Grown on a Magnetic Gel Allows Deconvoluting the Forces Leading to Traumatic Brain Injury.” Neurotrauma Reports, 2023. Prof. Yeshurun Yosef Department of Physics Superconductivity in NanoStructures Research Areas • Condensed matter physics • Magnetism • Superconductivity Abstract Understanding superconductivity in the nano-scale is of both fundamental interest and practical importance. The fundamental interest is understanding many novel phenomena manifested by nano-scale superconductors that are not seen in bulk. The practical importance stems from the potential of nano-superconducting structures to be used in innovative devices and systems, including quantum computers. During the last decade, we have concentrated on investigating the quantum behavior of nano-size superconducting single loops and networks. For example, we demonstrated the current-induced SQUID behavior of superconducting Nb nano-loops without Josephson junctions and associated this phenomenon with the flux-induced nonuniformity of the order parameter along the superconducting nano-ring. In another study, we discovered a current-induced crossover between two distinct quantum coherence effects. At low bias currents, Cooper-pairs coherence is manifested by Little-Parks oscillations with flux periodicity of hc/2e. At high bias currents, magnetoresistance oscillations with a flux period of hc/e were observed and interpreted as Aharonov-Bohm oscillations, reflecting the phase coherence of individual quasi-particles. We also found that exposing a grid of superconducting rings to a magnetic field results in an “invasion” of the quantum of magnetic flux to certain rings in the network in a specific structure that depends on the field intensity. The different configurations of flux populations may be necessary in memory devices that can be based on superconducting materials. In addition, magnetoresistance measurements in nano-loops made of high-temperature superconductors revealed oscillations with amplitude much larger than expected from the Little-Parks effect, indicating a different mechanism underlying these oscillations. We identified this mechanism as the interaction between thermally excited moving vortices and the oscillating persistent current induced in the loops. Our studies shed light on the mechanisms underlying the novel phenomena exhibited by superconducting nano-loops and networks. Understanding the physics behind these phenomena may lead to developing new concepts in the growing research area to exploit superconductors in nano-circuits. Optical image of the fabricated MKID. The YBCO and NbN MKIDs have similar dimensions (the superconducting material is white, and the substrate is black). Publications 2023 and 2024 • Zoharchen Sofer, Avner Shaulov, Amos Sharoni, Yosef Yeshurun. “Probing the Difference Between Amorphous and Granular Superconducting Nanowires in Transport Measurements.” Journal of Superconductivity and Novel Magnetism, 2024. • Michal Wasserman, Avner Shaulov, Amos Sharoni, Yosef Yeshurun. “Dendritic Flux Avalanches in Superconducting Hybrid Structures.” Superconductor Science and Technology, 2023. • Yosef Yeshurun. “K. Alex Müller– Memories from a Great Scientist.” Physica C: Superconductivity and its Applications, 2023. • Yasha Nikulshin, Amizur Kafri, Yosef Yeshurun, Shuki Wolfus. “Energy Storing and Fault Current Limiting in a Unified Superconducting Magnetic Device.” IEEE Transactions on Applied Superconductivity, 2023. • Ariel Roitman, Avner Shaulov, Yosef Yeshurun. “Effect of Magnetic Fields on Superconducting Microwave Coplanar Resonators.” IEEE Transactions on Applied Superconductivity, 2023. • Ariel Roitman, Avner Shaulov, Yosef Yeshurun. “Characterization of YBa2Cu3O7-δ Coplanar Resonator for Microwave Kinetic Inductance Detectors.” Superconductor Science Technology, 2023.
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