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The Effect of Structural and Antiferromagnetic Phase Transitions on Superconductivity

Gorbatsevich, A. A. / Elesin, V. Ph. / Kopaev, Yu. V.

Abstract Band calculations for La2Cu04 [1] and YBa2Cu307 [2, 3] show that there exists a nesting of Fermi surfaces which seems to be associated with structural (CDW) and antiferromagnetic (SDW) transitions in La2-xMexCu04 [4, 5]. In La2-xMexCu04 the nesting vector corresponds to the dimerization of the period. The observed CDW period, due to the tilting mode, opens a dielectric gap only if the degeneracy of the valence orbitals of the Cu-0 complex [6] is taken into account, contrary to the ordinary Peierls situation.

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The Effect of Structural and Antiferromagnetic Phase Transitions on Superconductivity

Gorbatsevich, A. A. / Elesin, V. Ph. / Kopaev, Yu. V.

Abstract Band calculations for La2Cu04 [1] and YBa2Cu307 [2, 3] show that there exists a nesting of Fermi surfaces which seems to be associated with structural (CDW) and antiferromagnetic (SDW) transitions in La2-xMexCu04 [4, 5]. In La2-xMexCu04 the nesting vector corresponds to the dimerization of the period. The observed CDW period, due to the tilting mode, opens a dielectric gap only if the degeneracy of the valence orbitals of the Cu-0 complex [6] is taken into account, contrary to the ordinary Peierls situation.

The Effect of Structural and Antiferromagnetic Phase Transitions on Superconductivity

Gorbatsevich, A. A. / Elesin, V. Ph. / Kopaev, Yu. V.

Abstract Band calculations for La2Cu04 [1] and YBa2Cu307 [2, 3] show that there exists a nesting of Fermi surfaces which seems to be associated with structural (CDW) and antiferromagnetic (SDW) transitions in La2-xMexCu04 [4, 5]. In La2-xMexCu04 the nesting vector corresponds to the dimerization of the period. The observed CDW period, due to the tilting mode, opens a dielectric gap only if the degeneracy of the valence orbitals of the Cu-0 complex [6] is taken into account, contrary to the ordinary Peierls situation.

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Title:

The Effect of Structural and Antiferromagnetic Phase Transitions on Superconductivity

Contributors:

Gorbatsevich, A. A. (author) / Elesin, V. Ph. (author) / Kopaev, Yu. V. (author)

Published in:

Novel Superconductivity ; 429-433

Publication date:

1987-01-01

Size:

5 pages

ISBN:

978-1-4612-9076-6 , 978-1-4613-1937-5

DOI:

https://doi.org/10.1007/978-1-4613-1937-5_48

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Fermi Surface , Superconducting Transition Temperature , Dielectric Phase , Reservoir Electron , Incommensurate Structure Physics , Strongly Correlated Systems, Superconductivity , Characterization and Evaluation of Materials

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