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Micro-SQUIDs based on MgB2 nano-bridges for MEMS readout.

Lolli, L*; Li, T*; Portesi, C*; Taralli, E*; Acharya, N*; Chen, K*; Rajteri, M*; Cox, D*; Monticone, E*; Gallop, J C; Hao, L (2016) Micro-SQUIDs based on MgB2 nano-bridges for MEMS readout. Supercond. Sci. Technol., 29 (10). 104008

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Abstract

We show the results obtained from the fabrication and characterization of MgB2 loops with two nano-bridges as superconducting weak links. These ring structures are made to operate as superconducting quantum interference devices and are investigated as readout system for cryogenics NEMS resonators. The nano-constrictions are fabricated by EBL and ion beam milling. The SQUIDs are characterized at different temperatures and measurements of the noise levels have been performed. The devices show high critical current densities and voltage modulations under applied magnetic field, close to the critical temperatures.

Item Type: Article
Keywords: SQUIDS, NEMS, MgB2
Subjects: Quantum Phenomena
Quantum Phenomena > Quantum Information Processing and Communication
Identification number/DOI: 10.1088/0953-2048/29/10/104008
Last Modified: 02 Feb 2018 13:13
URI: http://eprintspublications.npl.co.uk/id/eprint/7261

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