Coherent transport properties of a three-terminal hybrid superconducting interferometer

Kavli Affiliate: Yu V. Nazarov | First 5 Authors: F. Vischi, M. Carrega, E. Strambini, S. D’Ambrosio, F. S. Bergeret | Summary: We present an exhaustive theoretical analysis of a double-loop Josephson proximity interferometer, as the one recently realized by Strambini et al. for the control of the Andreev spectrum via an external magnetic field. […]


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InSb Nanowires with Built-In GaxIn1-xSb Tunnel Barriers for Majorana Devices

Kavli Affiliate: Michael T. Wimmer | First 5 Authors: Diana Car, Sonia Conesa-Boj, Hao Zhang, Roy L. M. Op het Veld, Michiel W. A. de Moor | Summary: Majorana zero modes (MZMs), prime candidates for topological quantum bits, are detected as zero bias conductance peaks (ZBPs) in tunneling spectroscopy measurements. Implementation of a narrow and […]


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Mn-doping induced ferromagnetism and enhanced superconductivity in Bi_4-x Mn_x O_4 S_3 (0.075 < = x < = 0.15)

Kavli Affiliate: N. C. Yeh | First 5 Authors: Zhenjie Feng, Xunqing Yin, Yiming Cao, Xianglian Peng, Tian Gao | Summary: We demonstrate that Mn-doping in the layered sulfides Bi_4O_4S_3 leads to stable Bi_4-x Mn_x O_4 S_3 compounds that exhibit both long-range ferromagnetism and enhanced superconductivity for 0.075 < = x < = 0.15, with […]


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Spectroscopic Studies of the Physical Origin of Environmental Aging Effects on Doped Graphene

Kavli Affiliate: N. C. Yeh | First 5 Authors: J. -K. Chang, C. -C. Hsu, S. -Y. Liu, C. -I Wu, M. Gharib | Summary: The environmental aging effect of doped graphene is investigated as a function of the organic doping species, humidity, and the number of graphene layers adjacent to the dopant by studies […]


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Markov Chains and Unambiguous Automata

Kavli Affiliate: David Muller | First 5 Authors: Christel Baier, Stefan Kiefer, Joachim Klein, David Müller, James Worrell | Summary: Unambiguous automata are nondeterministic automata in which every word has at most one accepting run. In this paper we give a polynomial-time algorithm for model checking discrete-time Markov chains against omega-regular specifications represented as unambiguous […]


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The $ω$-SQUIPT: phase-engineering of Josephson topological materials

Kavli Affiliate: Yu V. Nazarov | First 5 Authors: E. Strambini, S. D’Ambrosio, F. Vischi, F. S. Bergeret, Yu. V. Nazarov | Summary: Multi-terminal superconducting Josephson junctions based on the proximity effect offer the bright opportunity to tailor non trivial quantum states in nanoscale weak-links. These structures can realize exotic topologies in multidimensions as, for […]


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Closing the proximity gap in a metallic Josephson junction between three superconductors

Kavli Affiliate: Yu V. Nazarov | First 5 Authors: C. Padurariu, T. Jonckheere, J. Rech, R. Mélin, D. Feinberg | Summary: We describe the proximity effect in a short disordered metallic junction between three superconducting leads. Andreev bound states in the multi-terminal junction may cross the Fermi level. We reveal that for a quasi-continuous metallic […]


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Thermal Maps of Gases in Heterogeneous Reactions

Kavli Affiliate: Omar M. Yaghi | First 5 Authors: Nanette N. Jarenwattananon, Stefan Gloeggler, Trenton Otto, Arek Melkonian, William Morris | Summary: Over 85% of all chemical industry products are made using catalysts, with the overwhelming majority of these employing heterogeneous catalysts functioning at the gas-solid interface. Consequently, optimizing catalytic reactor design attracts much effort. […]


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Percolation lithography: Tuning and freezing disorder in 3D photonic crystals using partial wetting and drying

Kavli Affiliate: Anna V. Shneidman | First 5 Authors: Ian B. Burgess, Navid Abedzadeh, Theresa M. Kay, Anna V. Shneidman, Derek J. Cranshaw | Summary: Although complex, hierarchical nanoscale geometries with tailored degrees of disorder are commonly found in biological systems, few simple self-assembly routes to fabricating synthetic analogues have been identified. We present two […]


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Optimizing a Dynamical Decoupling Protocol for Solid-State Electronic Spin Ensembles in Diamond

Kavli Affiliate: Viatcheslav V. Dobrovitski | First 5 Authors: Demitry Farfurnik, Andrey Jarmola, Linh M. Pham, Zhi-Hui Wang, Viatcheslav V. Dobrovitski | Summary: We demonstrate significant improvements of the spin coherence time of a dense ensemble of nitrogen-vacancy (NV) centers in diamond through optimized dynamical decoupling (DD). Cooling the sample down to $77$ K suppresses […]


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