Anderson Hamiltonian description of the experimental electronic structure and magnetic interactions of copper oxide superconductors

Shen, Zhi‐Xun; Allen, J. W.; Yeh, J. J.; Kang, J.-S.; Ellis, W. P.; Spicer, W. E.; Lindau, I.; Maple, M. B.; Dalichaouch, Y.; Torikachvili, M. S.; Sun, Jian; Geballe, T. H.

doi:10.1103/physrevb.36.8414

Cited by 410 publications

(77 citation statements)

References 54 publications

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“…All films give rectangularly shaped spectra, whereas for the pellets the valence band is more rounded. For the pellets, the spectra greatly resemble those of others [10,41,50]. Bandstructure calculations indicate that the low binding energy part of the valence band has more Cu weight and that the O 2p contribution is at higher binding energies [51,52].…”

Section: E Valence Bandmentioning

confidence: 52%

Doping dependence of the chemical potential in cuprate high-Tc superconductors I. La2−xSrxCuO4

Rietveld

Glastra

Marel

1995

Physica C: Superconductivity

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cA systematic study is performed of the doping dependence of the chemical potential µ in La2−xSrxCuO4 as a function of Sr content, using a well-characterized series of pellets and thin films. The measured shift of the chemical potential, as deduced from the changes in the photoelectron spectra, is compared with present models for the doping behaviour of µ in high-Tc materials. The results obtained can be best described assuming µ shifts due to the doping of a rigid narrow band.

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Section: E Valence Bandmentioning

confidence: 52%

Doping dependence of the chemical potential in cuprate high-Tc superconductors I. La2−xSrxCuO4

Rietveld

Glastra

Marel

1995

Physica C: Superconductivity

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“…Specifically, the halooxocuprates Ca 2 Based upon a systematic analysis of the core level spectra of the substituent elements, we found that the cleavage surfaces of the halooxocuprates were almost free of contamination and stable for several days in UHV. The same holds for Bi 2 Sr 2 CaCu 2 O 8ϩ␦ but not for Nd 2 CuO 4 , which showed moderate oxide-related contamination at the surface.…”

Section: Discussionmentioning

confidence: 99%

“…This is in particular the case if ⌬EϪ d is small, since a ( ) then drops very quickly as epsilon becomes more negative. Figure 4 shows the O-1s core level spectra of Sr 2 due to the use of the flood gun. We assume a single component line for the Sr 2 CuO 2 Br 2 as well.…”

Section: Theorymentioning

confidence: 99%

“…However, the fine structure of the main line is an issue of ongoing discussion. First measurements with moderate resolution carried out on polycrystalline samples led to the observation of asymmetric, broad main lines, 2,6 which was explained in terms of the valence electronic structure, 7 since the charge transfer is essentially the transfer of an electron from the valence band to the copper 3d level. Later the notions of local and nonlocal screening channels were established.…”

Section: Introductionmentioning

confidence: 99%

“…Since the discovery of the high-temperature superconductivity in the cuprate systems in 1986, 1 this technique has often been used to determine electronic parameters such as the charge transfer energy ⌬ for various cuprate compounds. [2][3][4] In divalent copper compounds such as the undoped parent compounds of the high-temperature superconductors ͑HTSC's͒, copper has the electronic configuration Cu 2ϩ : ͓Ar͔ 3d 9 . This means there is a single hole in the 3d x 2 Ϫy 2 orbital per copper atom.…”

Section: Introductionmentioning

confidence: 99%

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Core-hole screening response in two-dimensional cuprates: A high-resolution x-ray photoemission study

et al. 2002

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LDA+? (?) Method for the Electronic Structure of Strongly Correlated Antiferromagnetic Materials: Application to La2CuO4

Pérez‐Navarro¹,

Costa‐Quintana

López‐Aguilar

2002

phys. stat. sol. (b)

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In this paper we present a method for obtaining the quasiband structure and the renormalized density of quasistates of strongly correlated systems with antiferromagnetic ordering. We calculate the electronic structure of La 2 CuO 4 in order to test this method. The first step required is to calculate the electronic structure from the local density approximation (LDA) in order to obtain the initial non-interacting ground state. The LDA density of states in strongly correlated systems usually presents serious discrepancies with experimental results. As is well known, these discrepancies, fundamentally concerning photoemission, are due to the fact that the dynamic correlation effects are not taken into account within the LDA. In order to include these effects, we obtain a self-energy potential which allows the initial LDA electronic structure to connect with that of the antiferromagnetic ground state arising from a Bogolyubov-like transformation. Within this new ground state, we determine an antiferromagnetic self-energy by means of a spin density wave procedure, and the interacting Green function yields a density of states which is in reasonable agreement with the experimental photoemission result.

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Anderson Hamiltonian description of the experimental electronic structure and magnetic interactions of copper oxide superconductors

Cited by 410 publications

References 54 publications

Doping dependence of the chemical potential in cuprate high-Tc superconductors I. La2−xSrxCuO4

Doping dependence of the chemical potential in cuprate high-Tc superconductors I. La2−xSrxCuO4

Core-hole screening response in two-dimensional cuprates: A high-resolution x-ray photoemission study

LDA+? (?) Method for the Electronic Structure of Strongly Correlated Antiferromagnetic Materials: Application to La2CuO4

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