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A millimeter wave Josephson mixer employing a high-T(c) GdBaCuO point contact (1987)

Olsson, H. K. ; Mcgrath, W. R. ; Eriksson, S. ; [et al.]

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Publication Date: 2011-08-19

Description: A Josephson effect heterodyne mixer for the millimeter wave band was investigated employing high-T(c) GdBaCuO point contacts. Mixer performance was in qualitative agreement with theory. A mixing response was observed up to 55 K, the highest operating temperature achieved for such a device to date. The voltage separation of RF-induced steps gave a value of h/2e = 2.08 x 10 to the -15th V s, which is in excellent agreement with the value expected for Cooper pairs. In addition, the temperature dependence of the I(0)R product was found to agree with Bardeen-Cooper-Schrieffer theory in the weak coupling limit.

Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING

Type: Journal of Applied Physics (ISSN 0021-8979); 62; 4923-492

Format: text

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