Contribution to a conference proceedings

FZJ-2019-01595

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png THz Josephson spectroscopy of optical phonons in YBa2Cu3O7−x

Gundareva, I.FZJ* ; Pavlovskiy, V. ; Divin, Y.FZJ*

2017
IEEE

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Please use a persistent id in citations: doi:10.1109/IRMMW-THz.2017.8066926

Abstract: [100]-tilt YBa 2 Cu 3 O 7-x bicrystal Josephson junctions with the resistances R n from 0.4 up to 400 Ohm have been fabricated and studied with Josephson admittance spectroscopy. In these junctions intrinsic ac shunting has been found, that is characterized by broadband admittance Y 1 of the order of R n -1 and low-level resonant contributions with the admittances ReY 2 (f k ) of two signs. Two different types of resonances have been observed and ascribed to the excitation of transverse and longitudinal IR-active phonons in YBa 2 Cu 3 O 7-x material by Josephson oscillations.

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Contributing Institute(s):

1. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 144 - Controlling Collective States (POF3-144) (POF3-144)

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