Noise in superconducting MgB2 thin film

B. Lakew; S. Aslam; H. Jones

doi:10.1117/12.724658

11 June 2007 Noise in superconducting MgB₂ thin film

B. Lakew, S. Aslam, H. Jones

Proceedings Volume 6600, Noise and Fluctuations in Circuits, Devices, and Materials; 660022 (2007) https://doi.org/10.1117/12.724658
Event: SPIE Fourth International Symposium on Fluctuations and Noise, 2007, Florence, Italy

Abstract

Noise was studied in an MgB2 thin film grown on a SiN substrate, with a superconducting transition temperature, Tc, near 39K. At the mid-point of the transition and at 10Hz a noise spectral density S_v = 0.34nVHz^1/2 was measured. The temperature noise, Kn , of the MgB2 film at different frequencies is compared to that of cuprate high temperature superconducting (HTS) thin films (with Tc ~ 90 K) used currently in transition-edge devices. Kn values predict that 2-D arrays of high performance infrared devices can be developed using MgB2.

Citation Download Citation

B. Lakew, S. Aslam, and H. Jones "Noise in superconducting MgB₂ thin film", Proc. SPIE 6600, Noise and Fluctuations in Circuits, Devices, and Materials, 660022 (11 June 2007); https://doi.org/10.1117/12.724658

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