Noise in MgB<sub>2</sub> thin film: a candidate material for space-borne infrared detector development

B. Lakew; S. Aslam; H. Jones; B. Moeckly

doi:10.1117/12.663668

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21 April 2006 Noise in MgB₂ thin film: a candidate material for space-borne infrared detector development

B. Lakew, S. Aslam, H. Jones, B. Moeckly

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Proceedings Volume 6186, MEMS, MOEMS, and Micromachining II; 61860A (2006) https://doi.org/10.1117/12.663668
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

An MgB₂ thin film was grown on a SiN-Si substrate, with a superconducting transition temperature, T_c, near 39K. At the mid-point of the transition (T= 38.24K) and at 10Hz a noise spectral density S_V= 0.34nV/ √Hz was measured. The temperature noise, K_n, of the MgB₂ film at different frequencies is compared to that of cuprate high temperature superconducting (HTS) thin films (with T_c ~ 90 K) used currently in transition-edge bolometers. Κ_n values predict that high performance far-IR thermal detectors (i.e bolometers) can be developed using MgB₂ as a thermistor.

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B. Lakew, S. Aslam, H. Jones, and B. Moeckly "Noise in MgB₂ thin film: a candidate material for space-borne infrared detector development", Proc. SPIE 6186, MEMS, MOEMS, and Micromachining II, 61860A (21 April 2006); https://doi.org/10.1117/12.663668

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