6 citations · 20 across the 22 of their papers we have counts for
17 papers · 1 filter
Possible temperature control DC switch effect between two superconductors
Tian De Cao
The lifetime of an electron pair could not be unlimited long, on the basis of this, we suggest a model. The model means that the movements of charge carriers in a superconductor sh…
Reverse circling supercurrents along a superconducting ring
Tian De Cao
The reason why high temperature superconductivity has been being debated is that many basic ideas in literatures are wrong. This work shows that the magnetic flux quantum in a supe…
Competition between superconductivity and spin density wave
Tian De Cao
The Hubbard model has been investigated widely by many authors, while this work may be new in two aspects. One, we focus on the possible effects of the positions of the gaps associ…
A new boson-fermion model of superconductivity
Tian De Cao
It is shown that the superconducting energy gap necessarily lead to the disappearance of some quasi-electrons, thus we suggest a new boson-fermion Hamiltonian to describe supercond…
Ten questions and answers about superconductivity
Tian De Cao
This work answers the basic questions of superconductivity in a question-and-answer format. We extend a basic hypothesis to various superconductors. This hypothesis is that superco…
Crossover from a pseudogap state to a superconducting state
Tian De Cao
On the basis of our calculation we deduce that the particular electronic structure of cuprate superconductors confines Cooper pairs to be firstly formed in the antinodal region whi…
The free states-related Fermi pocket of cuprate superconductors
Tian De Cao
To stress the effect of the pairing position deviating from the Fermi level, we must investigate the pairs in the wave vector space, and then we use the dynamic equation to study s…
Positive and inverse isotope effect on superconductivity
Tian De Cao
This article improves the BCS theory to include the inverse isotope effect on superconductivity. An affective model can be deduced from the model including electron-phonon interact…
Multiferroics seen from theoretic derivation of a tight binding model
Tian De Cao
One presented some lattice models, while the theoretic derivation has not been found, and the importance of correlation effects has to be emphasized. On the basis of the non-relati…
Pseudogap associated with precursor pairing
Tian De Cao
This work argues that the off-diagonal long range order (ODLRO) is not necessary for showing superconductivity while the electron pairing around Fermi surface is sufficient for sup…
High temperature superconductivity in metallic region near Mott transition
Tian De Cao
The spin-singlet superconductivity without phonons is examined in consideration of correlations on an extended Hubbard model. It is shown that the superconductivity requires not on…
Competition between singlet and triplet superconductivity
Tian De Cao, Tie Bang Wang
The competition between singlet and triplet superconductivity is examined in consideration of correlations on an extended Hubbard model. It is shown that the triplet superconductiv…
A new model and its physics
Tian De Cao
The high temperature superconductivity in cuprate materials1 has puzzled scientists over twenty years. We must find a new way to understand superconductivity. It is found the spin-…
Basic principle of superconductivity
Tian De Cao
The basic principle of superconductivity is suggested in this paper. There have been two vital wrong suggestions on the basic principle, one is the relation between superconductivi…
Superconductors described with CSM.(a new paper, 2008-10-16)
Tian De Cao
The properties of the known superconductors can be explained with the correlations dominated superconducting mechanism (CSM). The correlations have the spin correlation, the charge…
High-Tc superconductivity originated from strong spin-charge correlation: indication from linear temperature dependence of resistivity
Tian De Cao
Both the highest- and the linear temperature dependence of the resistivity in wide temperature range appear at the optimally doped regions of Cu-based superconductors1,2,3,4,5, and…
A possible explanation of the phase diagram of cuprate superconductors
Tian De Cao
A d-p pairing curve that is consistent with the pseudogap curve observed in experiments is found on a d-p model on phonon mechanism. On the discovery we suggest that there are two…