Transport properties of Andreev polarons in a superconductor-semiconductor-superconductor junction with superlattice structure.
نویسندگان
چکیده
Transport properties of a superconductor-semiconductor-superconductor (Su-Sm-Su) junction with superlattice structure are investigated. Differential resistance as a function of voltage shows oscillatory behavior under the irradiation of radio-frequency (rf) waves with the specific frequency of 1.77 GHz regardless of the superconducting materials and the junction geometries. Experimental data are quantitatively explained in terms of the coupling of superconducting quasiparticles with long-wavelength acoustic phonons indirectly excited by the rf waves. We propose that the strong coupling causes the formation of novel composite particles, Andreev polarons.
منابع مشابه
Transport properties of Andreev polarons in superconductor-semiconductor-superconductor junction with superlattice structure
Ryotaro Inoue, 2, ∗ Kenta Muranaga, Hideaki Takayanagi, 3 Eiichi Hanamura, Masafumi Jo, Tatsushi Akazaki, 2 and Ikuo Suemune 2 Dept. of Applied Physics, Tokyo Univ. of Science, Tokyo 162-8601, Japan. CREST, Japan Science and Technology Agency, Kawaguchi 332-0012, Japan. MANA, National Inst. for Materials Science, Tsukuba 305-0044, Japan. Japan Science and Technology Agency, Kawaguchi 332-0012, ...
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ورودعنوان ژورنال:
- Physical review letters
دوره 106 15 شماره
صفحات -
تاریخ انتشار 2011