A Study of the Excess Noise of Ir Transition Edge Sensors in the Frame of Statistical Models

• Published in: IEEE transactions on applied superconductivity Vol. 19; no. 3; pp. 445 - 450
• Main Authors: Bagliani, D., Bogorin, D.F., Celasco, E., Celasco, M., Eggenhoffner, R., Ferrari, L., Galeazzi, M., Gatti, F., Vaccarone, R., Valle, R.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01.06.2009; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Bolometer; infrared, submillimeter wave, microwave and radiowave receivers and detectors; Density; Electrical engineering. Electrical power engineering; Electromagnets; Electronics; Exact sciences and technology; General equipment and techniques; Infrared sensors; Infrared, submillimeter wave, microwave and radiowave instruments, equipment and techniques; Instruments, apparatus, components and techniques common to several branches of physics and astronomy; Iridium; Laser ablation; Laser modes; Laser noise; Laser theory; Magnetic properties; Magnetic sensors; Noise; Optoelectronic devices; Physics; Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices; Sensors; Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing; Sputtering; Statistical analysis; Superconducting device noise; Superconducting magnets; Superconductivity; Superconductors; Various equipment and components; Power density; Temperature dependence; Measurement sensor; Infrared detector; Experimental study; Photodetector; Statistical model; Optoelectronic device; Laser ablation technique; Cathodic sputtering; Resistive transition; Comparative study; Superconducting transition
• ISSN: 1051-8223; 1558-2515
• DOI: 10.1109/TASC.2009.2018063

Experiments on superconducting transition properties and power noise density experiments are performed in Ir-based transition edge sensors samples prepared by magnetron sputtering and by laser ablation techniques. The experimental temperature dependence of the resistive-superconducting transitions are compared and analyzed in terms of percolating models. Broad excess noise peak of low amplitude is detected close to the superconductive state and explained by the correlated avalanche theory.