Cooper Pairs, Local Pairs, and TF-Scaled High-Tc Superconductivity

1991 ◽  
pp. 227-239 ◽  
Author(s):  
V. C. Aguilera-Navarro ◽  
M. de Llano ◽  
A. Plastino
Keyword(s):  
Cooper Pairs ◽  
High Tc ◽  
High Tc Superconductivity ◽  
Local Pairs

scholarly journals MECHANISM OF HIGH-Tc SUPERCONDUCTIVITY BASED MAINLY ON TUNNELING MEASUREMENTS IN CUPRATES

2005 ◽  
Vol 19 (16) ◽  
pp. 743-770 ◽  
Author(s):  
A. MOURACHKINE
Keyword(s):  
Tunneling Spectroscopy ◽  
Phase Coherence ◽  
Spin Fluctuations ◽  
Cooper Pairs ◽  
High Tc ◽  
High Tc Superconductivity ◽  
One Dimensional ◽  
Topological Excitations ◽  
Discrete Breathers

The main purpose of this brief review is to present a sketch of the mechanism of high-Tc superconductivity based mainly on tunneling measurements in cuprates. In the review, we shall mostly discuss tunneling spectroscopy in Bi 2 Sr 2 CaCu 2 O 8. Analysis of the data shows that the Cooper pairs in cuprates are topological excitations (e.g. quasi-one-dimensional bisolitons, discrete breathers etc.), and the phase coherence among the Cooper pairs appears due to spin fluctuations.

ROBUST STATISTICAL MECHANISM FOR PHONON-DRIVEN HIGH-Tc SUPERCONDUCTIVITY

2005 ◽  
Vol 19 (01n03) ◽  
pp. 17-28
Author(s):  
M. de LLANO ◽  
F. J. SEVILLA ◽  
M. A. SOLÍS ◽  
J. J. VALENCIA
Keyword(s):  
Cooper Pairs ◽  
High Tc ◽  
High Tc Superconductivity ◽  
Phonon Dynamics ◽  
Statistical Mechanism ◽  
Cp Symmetry

Though commonly unrecognized, a superconducting BCS condensate consists of equal numbers of two-electron (2e) and two-hole (2h) Cooper pairs (CPs). A new complete (in the sense that 2h-CPs are not ignored) boson-fermion statistical ternary gas model, however, is able to depart from this perfect 2e-/2h-CP symmetry. It yields robustly higher Tc's without abandoning electron-phonon dynamics, and reduces to all the known statistical theories of superconductors, including the BCS-Bose "crossover" picture—but goes considerably beyond it.

scholarly journals Triplet hole propagation and high Tc superconductivity

1991 ◽  
Vol 185-189 ◽  
pp. 1603-1604
Author(s):  
A.M. Oleś ◽  
J. Zaanen ◽  
P. Horsch
Keyword(s):  
High Tc ◽  
High Tc Superconductivity

The high-Tc superconductivity in SmxBa1−xCuO3−y compound system

1987 ◽  
Vol 63 (12) ◽  
pp. 1125-1128 ◽  
Author(s):  
Cao Ning ◽  
Duan Zhanguo ◽  
Shao Xiuyu ◽  
Zheng Jiaqi ◽  
Ran Qize ◽  
...  
Keyword(s):  
Compound System ◽  
High Tc ◽  
High Tc Superconductivity

High Tc superconductivity and crystal structure of Pb Sr Y,Ca Cu O system

1989 ◽  
Vol 162-164 ◽  
pp. 534-535 ◽  
Author(s):  
V.S. Melnikov ◽  
A.G. Popov ◽  
N.V. Dan'ko ◽  
N.P. Pshentsova ◽  
D.P. Demenko ◽  
...  
Keyword(s):  
Crystal Structure ◽  
High Tc ◽  
High Tc Superconductivity

Granular Aspects of High Tc Superconductivity

1990 ◽  
Vol 195 ◽  
Author(s):  
Guy Deutscher
Keyword(s):  
High Temperature ◽  
High Temperature Superconductivity ◽  
Original Publication ◽  
High Tc ◽  
High Tc Superconductivity ◽  
Bulk Ceramic ◽  
Ceramic Samples ◽  
Granular Superconductors

ABSTRACTAs Bednorz and Muller noted in their original publication reporting on the discovery of high temperature superconductivity, their oxides present many of the features of granular superconductors. This behavior was first primarily ascribed to poor connectivity of the grains in the bulk ceramic samples. but later studies have pointed out to more fundamental reasons for these similarities. We will discuss them after first reviewing the well established properties of low Tc granular superconductors.

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