THz Josephson spectroscopy of optical phonons in YBa2Cu3O7−x
THz Josephson spectroscopy of optical phonons in YBa2Cu3O7−x
[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 o...
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Personal Name(s): | Gundareva, I. |
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Pavlovskiy, V. / Divin, Y. | |
Contributing Institute: |
Mikrostrukturforschung; PGI-5 |
Published in: | S. 1-2 |
Imprint: |
IEEE
2017
|
Physical Description: |
1-2 |
DOI: |
10.1109/IRMMW-THz.2017.8066926 |
Conference: | 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Cancun (Mexico), 2017-08-27 - 2017-09-01 |
Document Type: |
Contribution to a conference proceedings |
Research Program: |
Controlling Collective States |
Publikationsportal JuSER |
[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. |