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Smirnov, A. V.; Larionov, P. A.; Finkel, M. I.; Maslennikov, S. N.; Voronov, B. M.; Gol'tsman, G. N. |
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Title |
NbZr films for THz phonon-cooled HEB mixers |
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Conference Article |
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2008 |
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Proc. 19th Int. Symp. Space Terahertz Technol. |
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Proc. 19th Int. Symp. Space Terahertz Technol. |
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44-47 |
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HEB, NbZr, material search |
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Groningen, Netherlands |
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577 |
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Mel’nikov, A. P.; Gurvich, Y. A.; Shestakov, L. N.; Gershenzon, E. M. |
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Title |
Magnetic field effects on the nonohmic impurity conduction of uncompensated crystalline silicon |
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Journal Article |
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Year |
2001 |
Publication |
Jetp Lett. |
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Jetp Lett. |
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73 |
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1 |
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44-47 |
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Keywords |
uncompensated crystalline silicon, nonohmic impurity conduction, magnetic field |
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Abstract |
The impurity conduction of a series of crystalline silicon samples with the concentration of major impurity N ≈ 3 × 1016 cm−3 and with a varied, but very small, compensation K was measured as a function of the electric field E in various magnetic fields H-σ(H, E). It was found that, at K < 10−3 and in moderate E, where these samples are characterized by a negative nonohmicity (dσ(0, E)/dE < 0), the ratio σ(H, E)/σ(0, E) > 1 (negative magnetoresistance). With increasing E, these inequalities are simultaneously reversed (positive nonohmicity and positive magnetoresistance). It is suggested that both negative and positive nonohmicities are due to electron transitions in electric fields from impurity ground states to states in the Mott-Hubbard gap. |
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0021-3640 |
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1752 |
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Svechnikov, S.; Verevkin, A.; Voronov, B.; Menschikov, E.; Gershenzon, E.; Gol'tsman, G. |
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Title |
Quasioptical phonon-cooled NbN hot electron bolometer mixers at 0.5-1.1 THz |
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Conference Article |
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1998 |
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Proc. 9th Int. Symp. Space Terahertz Technol. |
Abbreviated Journal |
Proc. 9th Int. Symp. Space Terahertz Technol. |
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45-51 |
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Keywords |
NbN HEB mixers |
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The noise performance of a receiver incorporating spiral antenna coupled NbN phonon-cooled superconducting hot electron bolometric mixer is measured from 450 GHz to 1200 GHz. The mixer element is thin (thickness nm) NbN 1.5 pm wide and 0.2 i.um long film fabricated by lift-off e-beam lithography on high-resistive silicon substrate. The noise of the receiver temperature is 1000 K at 800-900 GHz, 1200 K at 950 GHz, and 1600 K at 1.08 THz. The required (absorbed) local-oscillator power is —20 nW. |
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1586 |
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Tong, C. Y. E.; Blundell, R.; Bumble, B.; Stern, J. A.; LeDuc, H. G. |
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Title |
Sub-Millimeter distributed quasiparticle receiver employing a non-Linear transmission line |
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1996 |
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Proc. 7th Int. Symp. Space Terahertz Technol. |
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47 |
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271 |
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Author |
Елезов, М. С.; Корнеев, А. А; Дивочий, А. В.; Гольцман, Г. Н. |
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Title |
Сверхпроводящие однофотонные детекторы с разрешением числа фотонов |
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Conference Article |
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2009 |
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Науч. сессия МИФИ |
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Науч. сессия МИФИ |
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47-58 |
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PNR SSPD, SNSPD |
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978-5-7262-1042-1 |
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УДК 533.14(06)+004.056(06) Фотоника и информационная оптика |
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RPLAB @ sasha @ елезов2009сверхпроводящие |
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1029 |
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