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This article is cited in 3 scientific papers (total in 3 papers)
CONDENSED MATTER
Multigap superconductivity in doped $p$-type cuprates
Ya. G. Ponomareva, V. A. Alyoshinb, E. V. Antipovb, T. E. Oskinab, A. Krapfc, S. V. Kul'bachinskiiad, M. G. Mikheeva, M. V. Sudakovaa, S. N. Chesnokova, L. M. Fisherd a M. V. Lomonosov Moscow State University, Faculty of Physics
b M. V. Lomonosov Moscow State University, Department of Chemistry
c Humboldt University, Department of Physics, Berlin
d Russian Electrotechnical Institute Named after V. I. Lenin
Abstract:
Andreev and tunneling spectroscopy studies of
Bi$_{2}$Sr$_{2}$Ca$_{n-1}$Cu$_n$O$_{2n+4+\delta}$,
HgBa$_{2}$Ca$_{n-1}$Cu$_{n}$O$_{2n+2+\delta}$ and
Tl$_{2}$Ba$_{2}$Ca$_{n-1}$Cu$_{n}$O$_{2n+4+\delta}$
have shown that superconductivity in single-layer ($n=1$) and two-layer
($n=2$)
phases has a single-gap character. Qualitatively different results were obtained
for
three-layer phases. In doped $p$-type Hg-1223, Bi-2223, and Tl-2223 samples two (or
three)
superconducting gaps were observed. The existence of multigap superconductivity
in
superconducting cuprates with $n\geq 3$ is explained by a difference
in doping
levels of outer (OP) and internal (IP) CuO$_{2}$-planes.
Received: 29.05.2014
Citation:
Ya. G. Ponomarev, V. A. Alyoshin, E. V. Antipov, T. E. Oskina, A. Krapf, S. V. Kul'bachinskii, M. G. Mikheev, M. V. Sudakova, S. N. Chesnokov, L. M. Fisher, “Multigap superconductivity in doped $p$-type cuprates”, Pis'ma v Zh. Èksper. Teoret. Fiz., 100:2 (2014), 134–140; JETP Letters, 100:2 (2014), 126–132
Linking options:
https://www.mathnet.ru/eng/jetpl3788 https://www.mathnet.ru/eng/jetpl/v100/i2/p134
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