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Trokiner, A.; Noc, L. Le; Schneck, J.; Pougnet, A.M.; Mellet, R.; Primot, J.; Savary, H.; Gao, Y. M.; Aubry, S.

doi:10.1103/physrevb.44.2426

Cited by 99 publications

(37 citation statements)

References 16 publications

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“…These results show a very good agreement with experiment [7] (see Fig. 4), as well as with studies of nuclear magnetic resonance (NMR) where it was reported that the hole concentration of OP is larger than IP [27,28]. The Pb doping effects on the total density of states (DOS) in Bi2223 are presented in the Fig.…”

Section: Electronic Propertiessupporting

confidence: 79%

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

Camargo-Martínez

Baquero

2016

Physica C: Superconductivity and its Applications

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Pb doping effect in the Bi2Sr2Ca2Cu3O10 compound (Bi2223) on the structural and electronic properties were investigated, using the Local Density (LDA) and Virtual Crystal (VCA) approximations within the framework of the Density Functional Theory (DFT), taking as reference the procedure implemented by H.Lin et al. in the Bi2212 compound [Phys. Rev. Lett. 96 (2006) 097001]. Results show that, the incorporation of Pb-dopant in Bi2223 lead a rigid displacement of the Bi/Pb-O bands toward higher energies, with a null contribution at the Fermi level, around the high symmetry point M in the irreducible Brillouin zone, for Pb doping concentration equal to or more than 26%, avoiding the presence of the so-called Bi-O pockets in the Fermi surface, in good agreement with angle-resolved photoemission spectroscopy (ARPES) and nuclear magnetic resonance (NMR) experiments, although a slight metallic character of the Bi-O bonds is still observed which would disagree with some experimental reports. The calculations show that the changes on the structural properties are associated to the presence or absence of the Bi-O pockets in the Fermi surface.

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Section: Electronic Propertiessupporting

confidence: 79%

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

Camargo-Martínez

Baquero

2016

Physica C: Superconductivity and its Applications

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“…This strong broadening is consis tent neither with the behaviour of the 170 NM R line corresponding to the SrO plane, which showed no temperature variation [16,17], nor with the 43Ca N M R main line, whose linewidth did not show any thermal variation. Although no spurious phase was detected in the n = 3 sample by X-ray measurements, an alternate more reasonable interpretation of the origin of this additional line is the presence of a small amount of a calcium rich spurious phase which does not contribute to X-ray patterns, being poor in heavy atoms.…”

Section: Discussionmentioning

confidence: 93%

“…On the other hand, as said above, calcium atoms may substitute bismuth or strontium atoms in BiO and SrO planes. If calcium atoms are in bismuth sites, the corresponding NMR line should be hardly detectable since 170 NMR lines corresponding to BiO layers have never been seen [16,17] due to the strong incommensurate modulation existing in this plane.…”

Section: Discussionmentioning

confidence: 99%

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⁴³Ca NMR Study of Bismuth-Based High-T^c Superconductors

Trokiner¹,

Noc

Yakubovskii

et al. 1994

Zeitschrift Für Naturforschung A

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As a first step of a study of the electronic properties of C u 0 2 planes by probing calcium nuclei in the bismuth-based high-Tc materials we report here the structural assignment of Ca N M R lines measured in 43Ca-enriched samples of n = 2 ((Bi,Pb)2Sr2CaCu2O g+x) and n = 3 ((Bi,Pb)2Sr2-Ca2C u 3O 10+Jl.) bismuth compounds. Powdered samples were investigated as well as oriented pow ders, achieved by uniaxial alignment of the grains in a 7T magnetic field. For the main calcium site (Ca between two C u 0 2 planes), we could determine the quadrupolar as well as the shift tensors. The results indicate that, in the same way as yttrium nuclei in YBaCuO, calcium nuclei are sensitive to the magnetic susceptibility of the metallic C u 0 2 planes.

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“…The charge imbalance has been observed by the nuclear magnetic resonance (NMR) measurement [11][12][13][14][15][16][17] and the X-ray diffraction measurement with the bond-valence analysis. [18][19][20] As regards hole-doped systems, the NMR studies have found that a hole concentration in the OP, OP , is larger than that in the IP, IP .…”

Section: Introductionmentioning

confidence: 99%

Charge Imbalance Effects on Interlayer Hopping and Fermi Surfaces in Multilayered High-T_cCuprates

2006

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We study doping dependence of interlayer hoppings, t ? , in multilayered cuprates with four or more CuO 2 planes in a unit cell. When the double occupancy is forbidden in the plane, an effective amplitude of t ? in the Gutzwiller approximation is shown to be proportional to the square root of the product of doping rates in adjacent two planes, i.e., t between IP and OP. Fermi surfaces are calculated in the four-layered t-t 0 -t 00 -J model by the mean-field theory. The order parameters, the renormalization factor of t ? , and the site-potential making the charge imbalance between IP and OP are self-consistently determined for several doping rates. We show the interlayer splitting of the Fermi surfaces, which may be observed in the angle resolved photoemission spectroscopy measurement.

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O17nuclear-magnetic-resonance evidence for distinct carrier densities in the two types of
A. Trokiner
¹
,
L. Le Noc
²
,
J. Schneck³
et al.

Cited by 99 publications

References 16 publications

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

⁴³Ca NMR Study of Bismuth-Based High-T^c Superconductors

Charge Imbalance Effects on Interlayer Hopping and Fermi Surfaces in Multilayered High-T_cCuprates

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O17nuclear-magnetic-resonance evidence for distinct carrier densities in the two types ofA. Trokiner1, L. Le Noc2, J. Schneck3 et al.

Cited by 99 publications

References 16 publications

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

Effects of Pb doping on structural and electronic properties of Bi2Sr2Ca2Cu3O10

43Ca NMR Study of Bismuth-Based High-Tc Superconductors

Charge Imbalance Effects on Interlayer Hopping and Fermi Surfaces in Multilayered High-TcCuprates

Contact Info

Product

Resources

About

O17nuclear-magnetic-resonance evidence for distinct carrier densities in the two types of
A. Trokiner
¹
,
L. Le Noc
²
,
J. Schneck³
et al.

⁴³Ca NMR Study of Bismuth-Based High-T^c Superconductors

Charge Imbalance Effects on Interlayer Hopping and Fermi Surfaces in Multilayered High-T_cCuprates