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Andreev, A. F. |
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The thermal conductivity of the intermediate state in superconductors |
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1964 |
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Sov. Phys. JETP |
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Sov. Phys. JETP |
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19 |
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5 |
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1228-1231 |
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superconductors, intermediate state, thermal conductivity |
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It is shown that, owing to over-the-barrier reflection of electron excitations at the boundary of the normal and superconducting phases, a temperature drop occurs when there is a flow of heat. The additional thermal resistance of a superconductor in the intermediate state is calculated. It is shown that it increases exponentially as the temperature is lowered and does not depend on the electron mean free path. |
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MSPU @ s @ Andreev_reflection |
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216 |
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Семенов, А. В.; Девятов, И. А.; Рябчун, С. А.; Масленников, С. Н.; Масленникова, А. С.; Ларионов, П. А.; Воронов, Б. М.; Чулкова, Г. М. |
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Поглощение терагерцового электромагнитного излучения в “грязной” сверхпроводниковой пленке при произвольном виде спектральных функций |
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2011 |
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Ж. Радиоэлектрон. |
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10 |
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7 |
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terahertz electromagnetic radiation; superconductors; detectors of terahertz range |
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A problem of absorption of high-frequency electromagnetic field in dirty superconductor is treated within Keldysh technic. Expression for the source term in the kinetic equation for quasiparticle distribution function is derived. The result is significant for deriving a consistent microscopic theory of superconducting detectors for terahertz frequency range, perspective detectors on kinetic inductance of current-biased superconducting strip and on Josephson inductance of tunnel.
В технике Келдыша рассмотрена задача о поглощении мощности высокочастотного электромагнитного поля в сверхпроводнике, удовлетворяющем условию грязного предела. Получено выражение для члена источника в кинетическом уравнении для функции распределения квазичастиц, справедливое при произвольном виде спектральных функций. Этот результат имеет значение для развития последовательной микроскопической теории сверхпроводниковых детекторов излучения терагерцового диапазона, в частности, перспективных детекторов на кинетической индуктивности смещённой током сверхпроводниковой полоски и джозефсоновской индуктивности туннельного контакта. |
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Duplicated as 1117 |
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RPLAB @ gujma @ |
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713 |
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Bueno, J.; Coumou, P. C. J. J.; Zheng, G.; de Visser, P. J.; Klapwijk, T. M.; Driessen, E. F. C.; Doyle, S.; Baselmans, J. J. A |
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Anomalous response of superconducting titanium nitride resonators to terahertz radiation |
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2014 |
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Appl. Phys. Lett. |
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105 |
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192601 (1 to 5) |
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KID, TiN, NEP, disordered superconductors, inhomogeneous state |
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We present an experimental study of kinetic inductance detectors (KIDs) fabricated of atomic layer deposited TiN films and characterized at radiation frequencies of 350 GHz. The responsivity to radiation is measured and found to increase with the increase in radiation powers, opposite to what is expected from theory and observed for hybrid niobium titanium nitride/aluminium (NbTiN/Al) and all-aluminium (all-Al) KIDs. The noise is found to be independent of the level of the radiation power. The noise equivalent power improves with higher radiation powers, also opposite to what is observed and well understood for hybrid NbTiN/Al and all-Al KIDs. We suggest that an inhomogeneous state of these disordered superconductors should be used to explain these observations. |
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1068 |
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Semenov, A. V.; Devyatov, I. A.; Ryabchun, S. A.; Maslennikov, S. N.; Maslennikova, A. S.; Larionov, P. A.; Voronov, B. M.; Chulkova, G. M. |
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Absorption of terahertz electromagnetic radiation in dirty superconducting film at arbitrary type of the spectral functions |
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2011 |
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Rus. J. Radio Electron. |
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Rus. J. Radio Electron. |
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10 |
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terahertz electromagnetic radiation; superconductors; detectors of terahertz range |
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A problem of absorption of high-frequency electromagnetic field in dirty superconductor is treated within Keldysh technic. Expression for the source term in the kinetic equation for quasiparticle distribution function is derived. The result is significant for deriving a consistent microscopic theory of superconducting detectors for terahertz frequency range, perspective detectors on kinetic inductance of current-biased superconducting strip and on Josephson inductance of tunnel. |
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7 pages |
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1117 |
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Minaeva, O.; Fraine, A.; Korneev, A.; Divochiy, A.; Goltsman, G.; Sergienko, A. |
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Title |
High resolution optical time-domain reflectometry using superconducting single-photon detectors |
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Conference Article |
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2012 |
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Frontiers in Opt. 2012/Laser Sci. XXVIII |
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Frontiers in Opt. 2012/Laser Sci. XXVIII |
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Fw3a.39 |
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SSPD, SNSPD, Photodetectors; Fiber characterization; Light beams; Optical time domain reflectometry; Photon counting; Single mode fibers; Single photon detectors; Superconductors |
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We discuss the advantages and limitations of single-photon optical time-domain reflectometry with superconducting single-photon detectors. The higher two-point resolution can be achieved due to superior timing performance of SSPDs in comparison with InGaAs APDs. |
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Optical Society of America |
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