ON PHONON MECHANISM OF HIGH TC SUPERCONDUCTIVITY

This paper explains simultaneously dTc/dP > 0, dλ/dP < 0 and the isotope effect observed for Y1Ba2Cu3O6.9 and La1.85Sr0.75CuO4 in terms of unified parameters in phonon mechanism of superconductivity.

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Anomalous concentration dependence of critical temperature and oxygen isotope effect exponent as an evidence for non-phonon mechanism of high-Tc superconductivity

Physica C Superconductivity ◽

10.1016/0921-4534(94)92352-3 ◽

1994 ◽

Vol 235-240 ◽

pp. 2261-2262

Author(s):

E.A. Pashitskii

Keyword(s):

Critical Temperature ◽

Oxygen Isotope ◽

Isotope Effect ◽

Concentration Dependence ◽

High Tc ◽

High Tc Superconductivity ◽

Phonon Mechanism

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Reconsideration of the Doping Effect on High-Tc Superconductivity

International Journal of Modern Physics B ◽

10.1142/s0217979298001988 ◽

1998 ◽

Vol 12 (29n31) ◽

pp. 3023-3026

Author(s):

De-Hua Lin ◽

Xingang Wu

Keyword(s):

Crystal Structure ◽

Nuclear Spin ◽

Fermi Liquid ◽

Three Dimensional ◽

Interlayer Spacing ◽

Doping Effect ◽

High Tc ◽

High Tc Superconductivity ◽

Mechanism Of Superconductivity

Studying the change of the cuprate's crystal structure based on doping and then the effect on its high-T c superconductivity, is an effective way to seek the mechanism of superconductivity. We explore the doping effect in the cuprate's crystal structure, such as the property of Cu-O layers, the interlayer spacing, the density of carriers and so on. Then, by considering the effect of the nuclear spin, we construct a three-dimensional superconductivity model, which is a correction of the nonphonon mechanism in a layered Fermi-Liquid.

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Phonon mechanism of high-TC superconductivity

Journal of Physics and Chemistry of Solids ◽

10.1016/j.jpcs.2005.10.133 ◽

2006 ◽

Vol 67 (1-3) ◽

pp. 50-55 ◽

Cited By ~ 2

Author(s):

T. Egami

Keyword(s):

High Tc ◽

High Tc Superconductivity ◽

Phonon Mechanism

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A NEW MECHANISM OF HIGH Tc SUPERCONDUCTIVITY BY ANTIFERROMAGNETIC SPIN WAVES

Modern Physics Letters B ◽

10.1142/s0217984987000454 ◽

1987 ◽

Vol 01 (07n08) ◽

pp. 315-321 ◽

Cited By ~ 3

Author(s):

KIYOSHI SOGO

Keyword(s):

Critical Temperature ◽

Spin Wave ◽

Spin Waves ◽

Coupling Constant ◽

High Critical Temperature ◽

High Tc ◽

High Tc Superconductivity ◽

Mechanism Of Superconductivity ◽

Antiferromagnetic Spin

New mechanism of superconductivity is presented, which utilizes antiferromagnetic spin waves. It is found that for the case of Ising like anisotropy the spin wave coherence strongly enhances the superconductive coupling constant, which gives rise to a rather high critical temperature. Sloppy spin wave mechanism is also suggested.

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