The ac Josephson relation and inhomogeneous temperature distributions in large Bi2Sr2CaCu2O8+δ mesas for THz emission

We have studied the terahertz emission from a 720 × 60 × 1.2 μm3 mesa patterned from under-doped Bi2Sr2CaCu2O8+δ. This device has an S-shaped current-voltage characteristic due to self-heating, allowing us to compare its THz emission behaviours at up to three different bias currents for the same vol...

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Veröffentlicht in:	Superconductor science & technology 2013-08, Vol.26 (8)
Hauptverfasser:	Benseman, T M, Koshelev, A E, Kwok, W-K, Welp, U, Kadowaki, K, Cooper, J R, Balakrishnan, G
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Cuprates superconductors (high tc and insulating parent compounds) Exact sciences and technology Physics Proximity effects, weak links, tunneling phenomena, and josephson effects, adreev effect, sn and sns junctions Superconductivity
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