Anomalous dispersion of surface impedance and negative dielectric permeability in Tl2Ba2Cu3O14

A. S. Shcherbakov, D. N. Kourov, V. E. Startsev, Eh G. Valiulin, G. M. Samojlenko, S. N. Artemenko, V. L. Kaminskij, A. I. Akimov, A. P. Chernyakova

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2 Citations (Scopus)

Abstract

Aimed to study unusual high-frequency properties of high-temperature superconductors (HTSC) measurements of frequency dependences of real and imaginary parts of surface impedance of Tl2Ba2Ca2Cu3O14 compound were carried out within 10-130 MHz and 2-6 GHz at room temperature. Anomalous dispersion of imaginary part of surface impedance within the frequency range of 150 MHz to 2 GHz was revealed. It was shown that at frequencies above 2 GHz a real part of dielectric permeability appeared which was comparable to its imaginary part in modulus and negative in sign. The investigations conducted were pointed out to give the information on the nature of superconductivity in HTSC because of decisive effect of dielectric permeability on electron-electron interactions.

Original languageEnglish
Pages (from-to)74-80
Number of pages7
JournalFizika Metallov i Metallovedenie
Issue number2
Publication statusPublished - Feb 1992

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High temperature superconductors
Electron-electron interactions
Superconductivity
Temperature

ASJC Scopus subject areas

  • Metals and Alloys

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Shcherbakov, A. S., Kourov, D. N., Startsev, V. E., Valiulin, E. G., Samojlenko, G. M., Artemenko, S. N., ... Chernyakova, A. P. (1992). Anomalous dispersion of surface impedance and negative dielectric permeability in Tl2Ba2Cu3O14 Fizika Metallov i Metallovedenie, (2), 74-80.

Anomalous dispersion of surface impedance and negative dielectric permeability in Tl2Ba2Cu3O14 . / Shcherbakov, A. S.; Kourov, D. N.; Startsev, V. E.; Valiulin, Eh G.; Samojlenko, G. M.; Artemenko, S. N.; Kaminskij, V. L.; Akimov, A. I.; Chernyakova, A. P.

In: Fizika Metallov i Metallovedenie, No. 2, 02.1992, p. 74-80.

Research output: Contribution to journalArticle

Shcherbakov, AS, Kourov, DN, Startsev, VE, Valiulin, EG, Samojlenko, GM, Artemenko, SN, Kaminskij, VL, Akimov, AI & Chernyakova, AP 1992, 'Anomalous dispersion of surface impedance and negative dielectric permeability in Tl2Ba2Cu3O14 ', Fizika Metallov i Metallovedenie, no. 2, pp. 74-80.
Shcherbakov AS, Kourov DN, Startsev VE, Valiulin EG, Samojlenko GM, Artemenko SN et al. Anomalous dispersion of surface impedance and negative dielectric permeability in Tl2Ba2Cu3O14 Fizika Metallov i Metallovedenie. 1992 Feb;(2):74-80.
Shcherbakov, A. S. ; Kourov, D. N. ; Startsev, V. E. ; Valiulin, Eh G. ; Samojlenko, G. M. ; Artemenko, S. N. ; Kaminskij, V. L. ; Akimov, A. I. ; Chernyakova, A. P. / Anomalous dispersion of surface impedance and negative dielectric permeability in Tl2Ba2Cu3O14 In: Fizika Metallov i Metallovedenie. 1992 ; No. 2. pp. 74-80.
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