TY - JOUR AU - Shcherbatenko, M. AU - Tretyakov, I. AU - Lobanov, Yu AU - Maslennikov, S. N. AU - Kaurova, N. AU - Finkel, M. AU - Voronov, B. AU - Goltsman, G. AU - Klapwijk, T. M. PY - 2016 DA - 2016// TI - Nonequilibrium interpretation of DC properties of NbN superconducting hot electron bolometers JO - Appl. Phys. Lett. SP - 132602 VL - 109 IS - 13 KW - HEB mixer KW - contacts AB - We present a physically consistent interpretation of the dc electrical properties of niobiumnitride (NbN)-based superconducting hot-electron bolometer mixers, using concepts of nonequilibrium superconductivity. Through this, we clarify what physical information can be extracted from the resistive transition and the dc current-voltage characteristics, measured at suitably chosen temperatures, and relevant for device characterization and optimization. We point out that the intrinsic spatial variation of the electronic properties of disordered superconductors, such as NbN, leads to a variation from device to device. UR - https://doi.org/10.1063/1.4963691 DO - 10.1063/1.4963691 N1 - exported from refbase (https://db.rplab.ru/refbase/show.php?record=1107), last updated on Sun, 02 Oct 2016 11:36:50 -0500 ID - Shcherbatenko_etal2016 ER -