Josephson lattice model for phase fluctuations of local pairs in copper oxide superconductors
Josephson lattice model for phase fluctuations of local pairs in copper oxide superconductors
复制标题
氧化铜超导体局部对相位涨落的约瑟夫森晶格模型
DOI:
10.1103/physrevb.100.024510
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发表时间:
2018
影响因子:
3.7
通讯作者:
M. Katsnelson
中科院分区:
文献类型:
--
作者:
M. Harland;Sergey Brener;A. Lichtenstein;M. Katsnelson
We derive an expression for the effective Josephson coupling from the microscopic Hubbard model. It serves as a starting point for the description of phase fluctuations of local Cooper pairs in $d_{x^2-y^2}$-wave superconductors in the framework of an effective $XY$ model of plaquettes, the Josephson lattice. The expression for the effective interaction is derived by means of the local-force theorem, and it depends on local symmetry-broken correlation functions that we obtain using the cluster dynamical mean-field theory. Moreover, we apply the continuum limit to the Josephson lattice to obtain an expression for the gradient term in the Ginzburg-Landau theory and compare predicted London penetration depths and Kosterlitz-Thouless transition temperatures with experimental data for YBa$_2$Cu$_3$O$_{7-x}$.
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影响因子:
8.6
作者:
E. Stepanov;E. Stepanov;Sergey Brener;F. Krien;M. Harland;A. Lichtenstein;A. Lichtenstein;M. Katsnelson;M. Katsnelson
通讯作者:
E. Stepanov;E. Stepanov;Sergey Brener;F. Krien;M. Harland;A. Lichtenstein;A. Lichtenstein;M. Katsnelson;M. Katsnelson
影响因子:
44.1
作者:
Gull, Emanuel;Millis, Andrew J.;Werner, Philipp
通讯作者:
Werner, Philipp
影响因子:
8.6
作者:
Junichi Okamoto;A. Cavalleri;L. Mathey
通讯作者:
L. Mathey
影响因子:
56.9
作者:
Rajasekaran, S.;Okamoto, J.;Cavalleri, A.
通讯作者:
Cavalleri, A.