Superconductivity in a quasi-two-dimensional Bose gas

Mj, Rice; Yr, Wang

doi:10.1103/physrevb.37.5893

Cited by 74 publications

(48 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The purpose of the paper is to present a quantitative study of this effect specifically for YBa 2 Cu 3 O 6+δ . Using the magnetic fluctuation exchange theory of high temperature superconductivity, we find a value of ∆(dµ e /dT ) much larger than the experimental value (2) and we show that the discrepancy may be explained by taking into account the presence of chains.…”

mentioning

confidence: 81%

See 1 more Smart Citation

Temperature dependence of the electron chemical potential in YBa2Cu3O6+δ

Dotsenko

Sushkov

1996

Physica C: Superconductivity

View full text Add to dashboard Cite

We study the behaviour of the electronic chemical potential in YBa 2 Cu 3 O 6+δ near the superconducting transition using the spin-wave exchange theory of pairing. We find that the experimental value of the jump in the temperature derivative of the chemical potential is inconsistent with the theoretical value calculated under the assumption of constant hole concentration. It is suggested that charge transfer between chains and planes takes place and corresponding calculations are done.Typeset using REVT E X 1

show abstract

mentioning

confidence: 81%

“…The temperature dependence of the chemical potential near the superconducting transition has attracted some attention recently [1][2][3][4][5][6][7][8]. It has been shown in several models that there is a jump in the temperature derivative of the chemical potential.…”

mentioning

confidence: 99%

Temperature dependence of the electron chemical potential in YBa2Cu3O6+δ

Dotsenko

Sushkov

1996

Physica C: Superconductivity

View full text Add to dashboard Cite

show abstract

“…Additional complications are introduced by the slave bosons not being free to condense in arbitrary large number onto the lowest energy state, as well as by the fact that the binding of two bosons happens differently according to the number of dimensions. For lack of space we cannot go through the details, and we refer the reader to the literature [39,45]. Summarizing the features of the superconducting state from holon pairing as predicted by the RVB model, one has a gap in the single particle excitations, qualitatively like the BCS case, but possibly too small to be detected.…”

Section: If We Evaluate the Anticommutator For I = Jmentioning

confidence: 99%

Magnetic Aspects of Superconducting Pairing

Acquarone

Paiusco

1993

Acta Phys. Pol. A

View full text Add to dashboard Cite

We discuss some of the recently proposed models dealing with the superconducting state in the presence of strong antiferromagnetic fluctuations, induced by the on-site Coulomb repulsion between electrons (the Hubbard correlation). In the weak coupling limit we treat the influence of correlation effects on the phonon-mediated superconductivity within the BCS-Eliashberg framework. As a non-standard model in this limit we describe next the so-called spin bag model. To discuss strong correlation limit, we describe The weak correlation limit Outline of the antiferromagnetic stateMagnetically ordered states are due to the repulsion between electrons, measured by the on-site electron correlation energy U. We shall use the Hubbard H a m i l t o n i a n f o r a s i n g l e b a n d i n t h e s i t e a n d r e c i p r o c a l s p a c e r e p r e s e n t a t i o nThe local moment Si has components In the antiferromagnetic (AF) state, the Fourier transform of S; i.e. can be written

show abstract

“…Rice and Wang [8] have proposed a model in which superconductivity is due to condensation of a pair of bosons which gives rise to quasi-particle excitation energies which are similar to those of RVB theory, but different from BCS theory. Rice and Wang, however, favor a phonon interaction which mediates the attraction between the boson pair in question.…”

Section: One Of the Leading Theories For The High-t Superconductors Imentioning

confidence: 99%

Overview of High-Temperature Superconductivity

Sahu

Langner

George

et al. 1988

ACS Symposium Series

View full text Add to dashboard Cite

An overview of the theoretical and experimental aspects of the recently-discovered superconducting compounds is presented. This overview is divided into three sections. In the first section a review of some of the theoretical and computational works is presented under the subsections entitled pairing mechanisms, electronic structure calculations and thermophysical properties. In the second section surface and interface chemistry issues related to the fabrication and use of high-temperature superconductors for high-performance applications are presented. Specific issues that are discussed include metallization and the formation of stable ohmic contacts, and chemically-stable overlayers that are suitable for passivation, protection and encapsulation of superconducting material structures that can then be used under a wide range of environmental conditions. Lastly, issues are discussed that are related to each of the bulk high-temperature superconducting ceramic oxides which have received so much attention the past two years. These include Tl 2 Ba 2 Ca 2 Cu 3 O 10 with a critical temperature of 125 K, which is the current record.

show abstract

Superconductivity in a quasi-two-dimensional Bose gas

Cited by 74 publications

References 17 publications

Temperature dependence of the electron chemical potential in YBa2Cu3O6+δ

Temperature dependence of the electron chemical potential in YBa2Cu3O6+δ

Magnetic Aspects of Superconducting Pairing

Overview of High-Temperature Superconductivity

Contact Info

Product

Resources

About