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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2012, Volume 96, Issue 11, Pages 830–837
(Mi jetpl3304)
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This article is cited in 14 scientific papers (total in 14 papers)
SCIENTIFIC SUMMARIES
THz phonon spectroscopy of doped superconducting cuprates
Ya. G. Ponomarev, H. Van Haeringen, S. A. Kuzmichev, S. V. Kul'bachinskii, M. G. Mikheev, M. V. Sudakova, S. N. Chesnokov M. V. Lomonosov Moscow State University, Faculty of Physics
Abstract:
Facts are presented evidencing a strong electron-phonon
interaction in doped BSCCO superconductors. A pronounced fine structure in
$dI/dV$-characteristics of Josephson junctions has been observed which is
caused by interaction of АС Josephson current with Raman-active optical
phonon modes. “Quantization” of the “gap” voltage for natural nanosteps
on the cryogenically cleaved surfaces of BSCCO proves the existence of the
intrinsic Josephson effect. A sharp extra structure in the current-voltage
characteristics of nanosteps is attributed to the presence of the extended
van Hove singularity.
Received: 19.10.2012
Citation:
Ya. G. Ponomarev, H. Van Haeringen, S. A. Kuzmichev, S. V. Kul'bachinskii, M. G. Mikheev, M. V. Sudakova, S. N. Chesnokov, “THz phonon spectroscopy of doped superconducting cuprates”, Pis'ma v Zh. Èksper. Teoret. Fiz., 96:11 (2012), 830–837; JETP Letters, 96:11 (2012), 743–749
Linking options:
https://www.mathnet.ru/eng/jetpl3304 https://www.mathnet.ru/eng/jetpl/v96/i11/p830
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Statistics & downloads: |
Abstract page: | 174 | Full-text PDF : | 48 | References: | 44 | First page: | 19 |
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